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Nitrogen (N)

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Nitrogen Fertilizer Production and Technology

Presentation made at the 2011 ASA-CSSA-SSSA International Annual meetings, October 16-19, 2011, San Antonio, TX, USA.

Access to Critical Soil Test Values Makes Better Fertilizer Decisions

An important first step in determining fertilizer strategies is soil testing. The critical value for a soil test indicates the likelihood of a crop response to an added nutrient but often these values ...

Access to Critical Soil Test Values Makes Better Fertilizer Decisions

An important first step in determining fertilizer strategies is soil testing. The critical value for a soil test indicates the likelihood of a crop response to an added nutrient but often these values ...

Improving Yields and Profit with Controlled-Release Urea on Rice and Eggplant in Hubei

China is the world’s leader in both rice and eggplant production. Farmers in the Hubei province prefer to use commercial, soluble fertilizers such as urea and compound fertilizers; however, nitrogen ( ...

作物氮肥施用:从“后视镜”回看

我们有很多人正在经历着白发越来越多或发根日渐减少的时刻,他们喜欢时不时地回头看,回忆多年来自己走过的道路是弯还是直.

Nitrogen

Nitrogen (N) is an essential nutrient because it is a part of the makeup of all plant and animal proteins. The nutritive value of the food we eat is largely dependent on having an adequate supply of N ...

Conectando la nutrición de cultivos y el ambiente

Rob Mikkelsen en el Congreso Aapresid 2017.

Balance de nutrientes - El papel de la fertilización

Presentación realizada en el Curso Agricultura de FUNDACREA en Buenos Aires (Argentina) el 25 de Julio de 217.

Nutrient Expert for improved fertilizer recommendations for maize in sub Saharan Africa

The Nutrient Expert (NE) decision support tool has been successfully adapted for use in developing fertilizer recommendations that address wide diversity of soil and climatic conditions in Ethiopia, N ...

In-season nutrient management - 2017

Presented at Manangatang Victoria GRDC Update

Nitrogen Deficiency Symptom Images

Here are some images featuring nitrogen deficiency in various crops.

大豆的氮营养:这里是我们所知道的

Dan Davidson著, 谢玲 译 涂仕华 校 大豆不仅需要氮素,而且量很大,因为大豆属于蛋白质作物,其蛋白质含氮达16%。近几十年来,我们一直都依赖大豆自身的固氮能力来满足其对氮素的需求。是的,大豆能固定很多氮,其余部分由土壤提供。但是,当大豆产量提高到4. 76-5.

Balanced Fertilization of Grain Crops in Egypt Can Double Yields

In Egypt, the application of mineral fertilizers is highly skewed towards nitrogen, which has led to the gradual depletion of other nutrients like phosphorus, potassium, and several micronutrients fol ...

Cultivo de trigo - Guia para una correcta fertilización

Presentación realizada en la reunión organizada por la Cooperativa LAR e INTA en Valle María (Entre Ríos) el 1 de Junio de 2017.

Soja 2015/16 en la Red de Nutrición de CREA Sur de Santa Fe - Establishing a Plant Nutrition Network for the CREA Region in Southern Santa Fé

En el presente informe se reportan los resultados de los ensayos de la Red de Nutrición de Largo Plazo correspondientes al cultivo de SOJA de la campaña 2015/16, desarrollado en dos sitios bajo rotaci ...

大豆氮素:这是我们目前所知的

Dan Davidson著, 谢玲 译 涂仕华 校 伊利诺伊州,布卢明顿(2017年2月27日)― 大豆不仅需要氮素,而且需求量很大,因为大豆属于蛋白质作物,其蛋白质含氮达16%。近几十年来,我们一直都依赖大豆自身的固氮能力来满足其对氮素的需求。是的,大豆能固定很多氮,其余部分由土壤提供。但是,当大豆产量提高到4. 76-5.

Crop residue burning and the loss of nutrients from fertilizers

Fate of topdressed fertilizers when stubbles are burned.

Improved Fertilization Boosts Olive Production in Morocco

Olives are one of the most important fruit crops in Morocco. The country’s fruit production has nearly doubled in the last ten years. But this higher production is mainly due to increased tree plantin ...

Potassium for fodder quality – 2016

Results of a field trial at Bessiebelle, Victoria

Impacts of a wet season on crop nutrition

GRDC Advisor Update Presentation and Paper

4R养分管理和伊利诺伊州养分损失控制策略

Terry Wyciskalla著, 谢玲 译 涂仕华 校 当人们谈论养分对水质危害时,氮和磷总是首当其冲。美国联邦饮水标准规定:饮用水中的NO3-N(N)含量的最高不能超过10mg/L。这些硝态氮必需通过城市水处理设备除去。因此,我们只能在爱荷华州、伊利湖(Erie Lake)和切萨皮克湾(Chesapeake Bay)地区能看到这一问题。 就磷来说,问题要难一些。首先,用于工业、农业及牲畜养殖 ...

4R Nutrient Management For Canola

Youtube video available

Fertilizer Nitrogen BMPs to Limit Losses that Contribute to Global Warming

The right fertilizer N management decisions in producing corn and other crops can help reduce the impact on greenhouse gas (GHG) emissions and global warming potential. These fertilizer best managemen ...

Las 4R del Manejo Responsable de Nutrientes para la conservación del suelo y la mitigación del cambio climático en el Cono Sur

Presentación realizada en la Conferencia Fertilizante Latino Americano organizada por CRU-Argus FMB en Buenos Aires el 25-27 de Enero de 2017.

今天的氮肥管理与你父辈时代不同

Cliff Snyder著, 谢玲 译 涂仕华 校 我们有很多上了年纪的人可能还记得那些苦难的年代,父辈们日夜劳作,也只能从地里收回些许粮食;因为这些土地从祖父们开始,就一直管理不善。很多现代农民面对的是另外的问题,继承了过度或“休闲”土壤耕作的遗产,以及满足于最佳土壤肥力管理与实施最佳保护性耕作的遗产。现在无人耕种的土地面积比例很高,这使一个农民除了收║.

Study on N and P runoff losses from cotton field in Jianghan Plain of Hubei

N and P are not only the main plant nutrition but also the main non-point pollution substances of farmland. As the great demand of agricultural production in China, more and more N and P fertilizers w ...

Improving Coffee Crop Nutrition in Vietnam

The main objective of this project is to understand current crop nutrition practices in Coffee in Vietnam, with the aim to use the insights and develop based on them field trials that support and prom ...

Publication Development and Knowledge Sharing

This project engages scientific authors, consultants, service providers, and other partners to identify suitable collaborators for IPNI SEAP, and then establish partnerships that add value to research ...

Seed Project and Incubator Program

This is an incubator project that identifies and then tests new ideas for research and market development.

El manejo del nitrógeno en cultivos de gramíneas de grano

Presentación realizada en el Simposio Fertiliza 2016 organizado por YPFB en Santa Cruz de la Sierra (Bolivia) el 15 y 16 de Diciembre de 2016.

Dinámica del nitrógeno en sistemas agrícolas

Presentación realizada en el Simposio Fertiliza 2016 organizado por YPFB en Santa Cruz de la Sierra (Bolivia) el 15 y 16 de Diciembre de 2016.

两用小麦的施肥

Mike Stewart著, 谢玲 译 涂仕华 校 用于牲畜饲草和食用的冬小麦 — 或两用小麦的生产 — 在(美国-加拿大)南部大平原很普遍,其种植面积随着北移而减少。两用小麦体系在德克萨斯州和俄克拉荷马州发展得很好,因为那里的温度有利于小麦在冬季生长 — 冰雪覆盖相对较少,喜温的小麦长势很好,而且大多数种植户还具有养殖牲畜的经验。 美国农业部没有两用小麦的种植面积记录.

Nitrogen performance indicators for Australian grain farms

Presented at the International Nitrogen Conference, Melbourne, Australia

Nutrición en sistemas productivos - Una mirada global

Presentación realizada en el Seminario Nodo Sur 2016 organizado por AAPRESID y la Asociación Argentina de la Ciencia del Suelo (AACS) en Balcarce (Buenos Aires) el 23 de Noviembre de 2016.

氮肥管理:从精准到决策

Steve Phillips著, 谢玲 译 涂仕华 校 目前的生产农业被牢牢地困踞在数字革命中。能帮助指引农场决策的关键信息比以前更加容易获得,而且速度更快,也更便宜。所有这些信息的缺点是咨询者和生产者被这些信息所淹没,有时会限制而不是提高他们的决策进程。 美国堪萨斯州立大学的农业经济学家,Terry Griffin最爱说:数据是无用的。他这样的观点常会引起那些提供数据的人立.

Boosting Soybean Yields and Raising Farmer Income in Kenya with Nutrient Management

Grain legumes are an important source of dietary protein and income for farmers in many parts of sub-Saharan Africa. Soybean production provides smallholder farmers in Kenya and Uganda with an alterna ...

Impactos del Manejo 4Rs a Largo Plazo - Experiencias en Argentina

Simposio Manejo 4R en el XXI Congreso Latinoamericano de la Ciencia del Suelo

Paper on Nutrient partitioning and stoichiometry in soybean: A synthesis-analysis

The paper "Nutrient partitioning and stoichiometry in soybean: A synthesis-analysis" by S. Tamagno, G. R. Balboa, Y. Assefa, P. Kovács, S. N. Casteel, F. Salvagiotti, F. O. García, W. M. Stewart, and ...

Ингибиторы уреазы

Серия: Минеральные удобрения

Нитрат натрия

Серия: Минеральные удобрения

Нитрат аммония (аммиачная селитра)

Серия: Минеральные удобрения

Удобрения пролонгированного действия

Серия: Минеральные удобрения

Диаммонийфосфат (диаммофос)

Серия: Минеральные удобрения

Нитрофос и нитрофоска

Серия: Минеральные удобрения

Сульфат аммония

Серия: Минеральные удобрения

Нитрат калия (калиевая селитра)

Серия: Минеральные удобрения

Аммиак

Серия: Минеральные удобрения

Моноаммонийфосфат (аммофос)

Серия: Минеральные удобрения

Тиосульфаты

Серия: Минеральные удобрения

КАС (карбамидно-аммиачная смесь)

Серия: Минеральные удобрения

Комплексные удобрения

Серия: Минеральные удобрения

Карбамид (мочевина)

Серия: Минеральные удобрения

Project Description - Updated nutrient response curves in the northern and southern regions of Australia

Soil testing is a key strategy in the efficient use of expensive fertilizer and other nutrient inputs, ensuring that the mix of nutrients applied match the fertility status and crop demand for the lik ...

氮肥施用时间与比例显著影响冬油菜产量

4R养分管理案例分析1 氮肥施用时间与比例显著影响冬油菜产量 油菜是我国的第一大油料作物,也提供了最大比例的食用油。我国油菜种植范围很广但主要集中在长江流域。春油菜在北方栽培而冬油菜在南方。冬油菜生育期长,最长可达9个月。因此,正确的施肥时间与施用比例对油菜高产至关重要。表1 是在江西开展的油菜施肥时间与施用比例的田间试验产量结果。施肥量为.

¿Como es la Nutrición de Nuestros Suelos?

Resultados de la Red Nutrición en la Rotación del CREA Córdoba Norte

Métodos de diagnóstico tradicionales y nuevas herramientas

Presentación realizada en el XXIV Congreso de AAPRESID en el Simposio "Simposio de nutrición de cultivos: ¿Cómo podemos mejorar el diagnóstico de la nutrición de los cultivos en la región pampeana?" e ...

Pensando en Nutrientes y Fertilidad de Suelos para los próximos 30 años

Conmemoración de los 30 años de adopción del sistema de Siembra Directa en el Paraguay

Impacto Económico y Rentabilidad de la Fertilización

Presentado por Adrián Correndo en el 2do Seminario CPIA de BPA "Manejo de Suelos y Nutrición de Cultivos", en la Bolsa de Cereales, Buenos Aires, Argentina.

Trigo 2015/16 en la Red de Nutrición de CREA Sur de Santa Fe - Establishing a Plant Nutrition Network for the CREA Region in Southern Santa Fé

En este informe se reportan los resultados observados en dos ensayos de trigo 2015/16 bajo rotación maíz-trigo/soja de segunda (M-T/Sj). Los objetivos específicos para esta campaña fueron: Evaluar la ...

Importancia del diagnóstico para la toma de decisión de la fertilización

Presentación en la Jornada de Actualización Técnica de Bunge realizada en Mar del Plata (Buenos Aires) el 3 de Junio de 2016.

Workshop on Biological Nitrogen Fixation in soybean

INTA and IPNI organized a workshop for researchers and industry staff at the Experimental Station of INTA at Oliveros (Santa Fe). The objective of the workshop was to discuss N nutrition of soybean un ...

Manejo Nutricional de Trigo para Rendimiento y Calidad

Presentación realizada en el seminario de ASP en Coronel Suárez (Buenos Aires) el 18 de Mayo de 2016, en colaboración con el Dr. Nahuel Reussi Calvo de Fertilab y FCA(UMdP)-CONICET

Ciclo de palestras

Dr. Eros Francisco, diretor adjunto do IPNI para a região centro-oeste do Brasil ministrou uma série de palestras para produtores de grãos da região médio norte do estado de Mato Grosso, de 2 a 5 de m ...

Estrategias de manejo para optimizar el rendimiento y la calidad en cultivos invernales

Video y archivo de la presentación realizada en el Congreso "A Todo Trigo 2016" organizado por la Federación de Acopiadores y SEMA en Mar del Plata el 5 y 6 de Mayo de 2016. Link al video http://www. ...

¿Es Sustentable Fertilizar?

Adrián A. Correndo

Time for an N-Rich Strip

Reference strips to check on N response

Results of 2015 HRZ Nutrition Experiments

Summary of responses from nutrient omission experiments.

Project Description - Evaluation of Enhanced Nitrogen-use Efficiency Products

Overall Objectives: Currently, there has been a growing interest in using enhanced Nitrogen (N)-use efficiency (NUE) products in western Canada. NUE products are marketed to reduce N losses and/or to ...

Project Description - Pushing the limits of fertilizer N recovery in a semiarid climate with improved N management

Introduction and Justification A common goal of N fertility programs should be to provide for the highest recovery of applied fertilizer N in the targeted crop species consistent with maximum yield an ...

Project Description - Improving N and S Fertilizer Management System under Crop Rotation

Location: Krasnodar Krai, Southern Federal District. Objectives: 1) Optimize the rates of S-containing fertilizers (NPKS and NPS). 2) Optimize the N sources for top-dressing in winter barley and winte ...

Vídeo: Conceito 4C na redução da emissão de gases do efeito estufa

O IPNI Brasil apresenta a versão em português do vídeo sobre o manejo 4C (aplicação da fonte certa, na dose certa, na época certa e local certo), para minimizar a emissão de gases do efeito estufa. Os ...

4R nitrogen management produced more yield and benefit on rice in Ningxia, China

Research focused on effect of N recommendation by Nutrient Expert integrated with CRU and placement on rice yield and benefit as well as N use efficiency.

Biomass production of forage grasses in response to nutrient use in Brazil

Brazil is an important beef producer and world exporter with a herd size of over 210 million heads that occupies 170 million hectares of pasture. National stocking rate is about only 1 head/ha in resp ...

Evaluation of Enhanced Nitrogen-use Efficiency Products

Currently, there has been a growing interest in using enhanced Nitrogen (N)-use efficiency (NUE) products in western Canada.

Improving N and S Fertilizer Management System under Crop Rotation

Crop response to S-containing fertilizers and various N sources is studied under winter barley – sugar beet – winter wheat – maize rotation.

IPNI Southeast Asia's International Publication Partnership on Oil Palm Nutrition

Our understanding of the importance of nutrients for sustainable oil palm production is incomplete. Extensive experimental work has been dedicated to understand yield response of oil palm to nutrients ...

Oil Palm Training Program

This project delivers training on the application of 4R principles in all stages of the oil palm production cycle from the initial nursery stage to the productive mature stage.

Scaling of Maize Fertilizer Recommendations Philippines

The project provides a model for scaling 4Rs in maize through the use of Nutrient Expert Maize recommendations by members of smallholder cooperatives, by building capacity of farmer leaders and market ...

Updated nutrient response curves in the northern and southern regions of Australia

The development of the Better Fertilizer Decisions for Crops database has identified gaps in the current region, nutrient and crop combinations. This project will generate data for the dominant crops ...

Looking for Sustainability - Long-Term Fertilization in the Pampas of Argentina - Establishing a Plant Nutrition Network for the CREA Region in Southern Santa Fé

An oral paper on the long-term agronomic, economic, and environmental outcomes of the Nutrition Network CREA Southern Santa Fe was presented at the 2015 ASA Meetings which took place at Minneapolis (M ...

Promotion du concept du 4R par IPNI Afrique du Nord dans les zones céréalières du Maroc

Dans le cadre du projet Agrium et en ouverture de la campagne agricole 2015-2016 IPNI Afrique du Nord a organisé des journées de sensibilisation et d'information au profit des agriculteurs des zones c ...

关于召开化肥零增长下养分高效利用国际学术研讨会 会议通知

关于召开化肥零增长下养分高效利用国际学术研讨会会议三轮通知 各有关单位、各位专家、学者: 2015年农业部制订了《到2020年化肥使用量零增长行动方案》,提出力争到2020年主要农作物化肥使用量实现零增长。为凝练当前化肥减施中的重大科学需求、借鉴发达国家化肥减施中的成功经验,以及交流肥料高效利用中的最新进展,中国植物营养与肥料学会化学肥料专业委员会 .

Nitrogen

IPNI Nitrogen Program Tactical Plan through 2017.

我国马铃薯的4R 养分管理措施

马铃薯是继水稻、小麦和玉米后第四位粮食作物。全球1/3的马铃薯来自发展中国家。我国是世界上最大的马铃薯生产国,2013年产量达到9594万吨,其中2/3产于6个省份,即内蒙古、甘肃、四川、贵州、云南和重庆。肥料用量低且不平衡是马铃薯产量低和品质差的主要原因之一,而且西南地区马铃薯种植区很大一部分在山区和高原地区,限制产量的因素复杂多样。土壤养分含量低r.

西北地区向日葵4R 养分管理

向日葵是我国重要的油料作物之一,西北地区是主产区,面积占全国的72%以上,超过1000万亩。在向日葵施肥上农民主要施用有机肥配合施用N、P肥,尤其磷肥过量施用比较普遍,而施钾肥的农户只有不足10%。即使施钾地区钾肥的用量不足向日葵需求量的30%。因此,钾肥的合理施用是提高向日葵产量和品质的主要措施之一。本研究总结现有的研究成果,根据4R养分管理原则提出 .

7th International Nitrogen Conference (INI 2016)

The Victorian Government and University of Melbourne are jointly hosting the 7th International Nitrogen Initiative Conference, at the Melbourne Cricket Ground, on December 4 to 8, 2016. The theme of I ...

Symposium on Metrics for Management of Sustainable Crop Nutrition

Co-sponsored Symposium at Synergy in Science ASA, CSSA, SSSA International Annual Meeting

Pautas y números para decidir la fertilización de cultivos estivales en una campaña difícil

La campaña agrícola 2015/16 se presenta con desafíos significativos en cuanto a la rentabilidad de los cultivos y las condiciones climáticas. En este marco se presentan varios interrogantes acerca de ...

Maíz 2014/15 en la Red de Nutrición de CREA Sur de Santa Fe - Establishing a Plant Nutrition Network for the CREA Region in Southern Santa Fé

En el presente informe se reportan los resultados de los ensayos de la Red de Nutrición de Largo Plazo correspondientes al cultivo de Maíz de la campaña 2014/15, desarrollado en dos sitios bajo rotaci ...

Background to Omission Trials

Summary of HRZ omission trials treatments and seasonal conditions

VIDEO: Nitrogen Fertilizer: Its Importance and Responsible Use

Let's meet nitrogen, one of our essential building blocks of life and a vital part of every cell, plant, insect and animal. This video describes how and why modern nitrogen fertilizer was developed, a ...

IPNI Insights - N Articles

Capturing Residual Soil Nitrogen with Winter Cereal Cover Crops Dr. Clifford S. Snyder, Dr. J. J.

Plant Nutrition Today Articles

PLANT NUTRIENT ANALYSES IDENTIFIES YIELD-ROBBING SHORTAGES PRE-PLANT SOIL NITRATE – MEANINGFUL OR MALARKEY? NITROGEN KNOWLEDGE – IS YOURS INCREASING? WATER NUMERIC NUTRIENT CRITERIA: WHAT, WHY AND THE ...

Hypoxia in the Northern Gulf of Mexico

V.H. Dale, C.L. Kling, J.L. Meyer, J. Sanders, H. Stallworth, T. Armitage, D. Wangsness, T. Bianchi, A. Blumberg, W. Boynton, D.J. Conley, W. Crumpton, M. David, D. Gilbert, R.W. Howarth, R. Lowrance, ...

Enhanced-Efficiency Nitrogen Fertilizers: Potential Role in Nitrous Oxide Emission Mitigation

Ardell D. Halvorson, Clifford S. Snyder, Alan D. Blaylock and Stephen J. Del Grosso

Excess nitrogen in the U.S. environment: trends, risks, and solutions

Eric A. Davidson, Mark B. David, James N. Galloway, Christine L. Goodale, Richard Haeuber, John A. Harrison, Robert W. Howarth, Dan B. Jaynes, R. Richard Lowrance, B. Thomas Nolan, Jennifer L. Peel, R ...

Red de Nutrición CREA Sur de Santa Fe

Colección de informes y reportes

Trigo 2014/15 en la Red de Nutrición de CREA Sur de Santa Fe - Establishing a Plant Nutrition Network for the CREA Region in Southern Santa Fé

En el presente informe se reportan los resultados de los ensayos de la Red de Nutrición de Largo Plazo correspondientes al cultivo de Trigo de la Campaña 2014/15, desarrollado en tres sitios bajo rota ...

Desafíos para el manejo sustentable de los nutrientes en sistemas de producción de soja en el Cono Sur

Presentación realizada en el Congreso Mercosoja 2015 organizada por EMBRAPA en Florianopolis (Brasil), 22-25 de Junio de 2015.

Sustentabilidad Productiva, Suelo, Nutrientes y Fertilización

Seminario Taller CPIA en Congreso Maizar 2015

Mano a mano con los que saben en fertilización de cultivos

Dr. Pedro Barbagelata – EEA INTA Paraná. Ing. Agr. M. Sc. Gustavo Ferraris – EEA INTA Pergamino. Dr. Nahuel Reussi Calvo – Unidad Integrada INTA-FCA Balcarce. Laboratorio Fertilab. Ing. Agr. Cristian ...

La fertilización y una visión empresaria de largo plazo

Ing. Agr. Hugo Ghio – Productor rural, AAPRESID

Aportes de la ecofisiología en el manejo, nutrición y mejoramiento de cultivos

Dr. Lucas Borras – Facultad de Ciencias Agrarias (UNR), CONICET.

La materia orgánica de los suelos agrícolas: Formación, evolución y manejo

Dr. Gervasio Piñeiro – Facultad de Agronomía (UBA)

Manejo nutricional eficiente para maximizar la producción de los cultivos

Dr. Gabriel Esposito – Facultad de Agronomía y Veterinaria (UNRC)

Producción de granos y adopción de tecnología en Argentina

Ing. Agr. Juan Martin Brihet – Bolsa de Cereales de Buenos Aires.

广东省基本情况简介

广东省地处北纬20°13′-25°31′,东经109°41′-117°20′之间,北回归线横贯本省。全省陆地面积17. 98万平方千米,约占全国总面积的1. 87%,其中宜农地434万公顷,宜林地1100万公顷,是中国国内人多地少的省份之一。2011年作物播种面积581. 7万公顷。广东省民族众多,除以汉族为主外,还有壮、瑶、回等52个民族,2014年常住人口为1.

重庆市基本情况简介

重庆市位于长江与嘉陵江汇合处,1997年设立直辖市,是长江上游最大的经济中心。全市幅员82403平方千米。截至2014年末,重庆市常住人口2991. 40万人, 年末户籍总人口3375. 20万人, 其中农业人口2003. 08万人,非农业人口1372. 12万人,城镇化率59. 6%。年平均气温16℃~18℃,大部分地区年平均降雨量1000㎜~1350㎜,无霜期325d~345d。森林覆盖率23 ...

农作物4R养分管理视频

根据多年研究结果,国际植物营养研究所(IPNI)中国项目制作了一系列8-10分钟的农作物4R养分管理视频资料,包括苹果、棉花、马铃薯、加工番茄等,向广大农业技术推广人员和农户介绍主要作物施肥中正确的肥料品种、正确的施肥量、正确的施肥时期和正确的施肥方法的4R养分管理策略。可免费向IPNI北京办事处索取。 IPNI北京办事处:北京中关村南大街12号,中国农科院旧主楼628 .

分次施氮肥提高了冬小麦籽粒产量和氮素利用率

氮素对于我国华北冬小麦产量至关重要。田间试验研究氮肥不同基追比对小麦籽粒产量、氮素吸收和利用率的影响。基肥是在播种时施入,而追肥在Zadoks GS30时期(大约播种150天后)施入。下面的表格显示了氮肥施用增加籽粒产量20-35%,与一次性施肥相比,氮肥分施的两个处理增加了10-20%的产量。氮肥分施也使氮素吸收增加了2-7%, 氮素回收率增加了9-25%。最佳的氮肥分施处理 .

马铃薯的4R养分管理

马铃薯是继水稻、小麦和玉米后第四位粮食作物。全球1/3的马铃薯来自发展中国家。我国是世界上最大的马铃薯生产国,2013年产量达到9594万吨,其中2/3产于6个省份,即内蒙古、甘肃、四川、贵州、云南和重庆。肥料用量低且不平衡是马铃薯产量低和品质差的主要原因之一,而且西南地区马铃薯种植区很大一部分在山区和高原地区,限制产量的因素复杂多样。土壤养分含量低 .

N in Agriculture

Monday April 13, 2015 Soil Science Australia, South Australian Branch Event

集约化农田节肥增效理论与实践

本书主要以东北、华北、长江中下游为研究区域,选择玉米、小麦、水稻、蔬菜等作物为研究对象。重点阐述了肥际-根际养分转化与调控、作物养分吸收 转运与高效利用、有机无机肥料以及环境要素协同效应与机理、农田养分时空变异特征与调控、典型区域养分循环特征与节肥增效途径与模式,以及我国养分资 源高效利用的战略与对策。通过以上研究提出作物持续高产和 .

High rainfall zone nutrient omission trials 2015

Part of the GRDC project DAV00141 led by P Riffkin

Région de Chaouia: IPNI organise une grande journée de sensibilisation sur le principe du 4R pour une bonne gestion de la fertilisation du blé

Plus de 120 participants ont répondu presents à la journée de sensibilisation sur le concept du 4R pour la bonne gestion de la nutrition minérale du blé organisée par le programme IPNI Afrique du Nord ...

Ammonia Volatilization

Nitrogen (N) fertilizer is essential for grow­ing most crops. Some ammonium and urea-based fertilizers are susceptible to loss as ammonia (NH3) gas, especially when left on the soil surface. Ammonia l ...

Denitrification

Denitrification is a natural soil microbial process where nitrate (NO3-) is converted to nitrogen (N) gases that are lost to the atmosphere. Denitrification occurs when soil bacteria use nitrate for t ...

NuGIS: Nutrient Use Geographic Information System

The Nutrient Use Geographic Information System (NuGIS) integrates multiple tabular and spatial datasets to create county-level estimates of nutrients applied to the soil in fertilizer and livestock ma ...

2014/15 season: Maize crop at the Balducchi site of the Nutrition Network CREA Southern Santa Fe - Establishing a Plant Nutrition Network for the CREA Region in Southern Santa Fé

The Balducchi site at Teodelina (Santa Fe, Argentina) is one of the five on-farm experiments of the Nutrition Network CREA Southern Santa Fe, a long-term study started on 2000. In the 2014/15 season, ...

Advancing Intensive Management of Corn Systems in Minnesota (Irrigated)

This project is focused on high-yield continuous corn systems - Irrigated.

Better nutrient management strategy for rice-wheat, rice-rapeseed and rice-rice cropping systems

Rice-upland crop rotation is one of the most important cropping systems in China. To increase fertilization efficiency in these rotations, improve farmland soil fertility and reduce the risk of non-po ...

Effect of control release urea on rice and eggplant in Hubei

As supported by IPNI China program, the project cooperators in Wuhan Botanical Garden of CAS carried out the rice and eggplant field experiments to study the effect of application control release urea ...

Nutrient performance indicators for the Australian grains industry

This project aims to develop and test a process to measure and report the nutrient use benchmarks partial nutrient balance (PNB) and partial factor productivity (PFP) for N, P, K and S for grain produ ...

Optimization of Winter Wheat Nutrition

Response of winter wheat to foliar sprays with Potassium Nitrate is studied in field experiments conducted in drought-affected areas.

Study of variable nutrient responses in cotton grown in Vertisols of North-Eastern Karnataka

A study wan undertaken with the objective of To characterize and assess fertility status of soils in intensive cotton and soybean growing areas of North-Eastern region in Karnataka To study the respon ...

Yield maximization in cotton through targeted yield approach and omission plot techniques in Vertisols of Karnataka

A study was undertaken in the Bt cotton growing farmer fields of Raichur district with the following objectives 1. To know the effect of targeted yield approach on growth, yield and quality of Cotton ...

FBN em soja: uma excelente prática agrícola e sustentável

Palestrante: Prof. Dr. Gil Miguel de Sousa Câmara, ESALQ-USP

Les scientifiques de IPNI Afrique du Nord en tournée de sensibilisation sur la bonne gestion des éléments nutritifs pour la culture du blé

En préparation à la nouvelle campagne agricole 2014-2015, le bureau IPNI Afrique du Nord a organisé durant le mois d'octobre 2014 des journées de sensibilisation sur la bonne gestion des éléments nutr ...

Nutrient Use Efficiency

Presented at the 2014 AFSA meeting

4R Nutrient Management Practices for Potato Production in China

In China, potato yields have been restricted by low and unbalanced nutrient input. A key measure to better tuber yield, quality, and improved nutrient use efficiency will be successful implementation ...

Effect of Different Fertilizer Treatments on eggplant Production in Hainan

Abstract: Due to high economic returns of vegetable production, overdosing fertilizers is quite common in the vegetable bases in China. Thus, the purpose of this study was to determine the optimal fer ...

Nutrient Expert gained the good field performance for rice

Dr. Ping He participated mid-term evaluation of 973 project held in Wuhan. Dr. Ping He was involved in Nutrient Expert based fertilizer recommendation in topic 5 that including Nutrient Expert wheat, ...

Second Atelier de formation sur l'outil ''Nutrient Expert'' Organisé par IPNI North Africa

Dans le cadre de ses activités en Afrique du Nord, le bureau regional de IPNI en Afrique du Nord a organisé le second atelier sur le modèle de prise de decision en fertilisation '' Nutrient Expert". C ...

Nitrogen management that maximizes margins, improves sustainability of wheat cropping

D Nash, P Riffkin, R Harris, A Blackburn, C Nicholson, M McDonald.

Video on 4R Nutrient Stewardship’s Role in Reducing Greenhouse Gas Emissions

September 30, 2014 – Peachtree Corners, Georgia, US – The International Plant Nutrition Institute (IPNI) has just released a new video animation explaining how farmers make 4R decisions (i. e. , decis ...

Nitrogen - how much is enough?

GRDC Grower Updates, Kimba, Cummins, Naracoorte

Fertilización de la rotación: Sustentabilidad y Rentabilidad

Presentación realizada en el XXII Congreso Aapresid, Rosario, 6 al 8 de Agosto de 2014

Soja 2013/14 en la Red de Nutrición de CREA Sur de Santa Fe - Establishing a Plant Nutrition Network for the CREA Region in Southern Santa Fé

En el presente informe se reportan los resultados de los ensayos de la Red de Nutrición de Largo Plazo correspondientes al cultivo de Soja de primera (3) y de segunda (2) de la campaña 2013/14, desarr ...

Пир для царицы полей

В.В. Носов, О.А.Бирюкова, А.В.Купров, Д.В. Божков

Project Summary - Evaluation of late nitrogen applications to achieve yield potential and increased protein content in wheat

Background Growers and agronomists have to make a number of key tactical decisions, each season, in respect of their overall nitrogen management. These decisions include selecting the right rate based ...

How to get nitrogen into your crop effectively and efficiently

Time, Rate, Place and Source - get them all Right.

Nutrición de suelos y cultivos: Aportes para la producción sustentable de maíz

Presentación realizada en el Congreso Maizar 2014, Buenos Aires (Argentina), 2 de Julio de 2014.

Des plateformes d'essais pour la formation au champ au profit des agriculteurs et des agents de développement issus des principales régions céréalières du Maroc

Le 21 Avril 2013 IPNI North Africa a organisé une journée de formation au champs sur la fertilisation des céréales au profit des agriculteurs et des agents de développement des principales région céré ...

Better Fertilizer Decisions for Crops

Project summary and access to the data interrogator

Balanced nutrition yields benefits

Results from the Dahlen long term fertilizer experiment

Bases para el manejo 4R de la nutrición del cultivo de trigo

Presentación realizada en el Simposio Internacional IPNI Brasil-IPNI Cono Sur, Foz do Iguacu (Brasil), 20-21 de Mayo de 2014.

Nitrogen

Nitrogen (N) is an essential nutrient because it is a part of the makeup of all plant and animal proteins. The nutritive value of the food we eat is largely dependent on having an adequate supply of N ...

Project Description - Supplemental Late-Vegetative Nitrogen Applications for High-Yield Corn: Agronomic, Economic and Environmental Implications with Modern Versus Older Hybrids

Introduction: Modern corn hybrids have a “functional stay green” capacity whereby their leaves not only stay green longer during the grain filling period, but also maintain their photosynthetic capaci ...

IPNI China Program 2013 Newsletter

IPNI China Program highlights in 2013......

The Historical Development of the Haber-Bosch Process

A presentation by David E. Kissel, University of Georgia, Athens, GA

Nutrient management for banana in China

Banana, one of the most important subtropical and tropical fruits, mainly grows in the provinces of Guangdong, Guangxi, Hainan, Fujian, Yunnan and Taiwan in China. Among the provinces, Guangdong has t ...

2013 Annual Interpretive Summary - Climate Change Mitigation and Adaptation through Conservation Agriculture and Precise Nutrient Management in Current and Future Cereal-based Cropping Systems of the Indo Gangetic Plains

Participatory trials in eight farmer fields in Haryana were conducted to assess the effect of nutrient and residue management on wheat yield, nutrient uptake and carbon sustainability index. Three res ...

IPNI au service des agriculteurs de la région de Chaouia au Maroc

Dans le cadre de ses activités au Maroc, IPNI représenté par son bureau d'Afrique du Nord a organisé conjointement avec l'INRA de Settat une journée au champs sur la bonne gestion de la fertilisation ...

Oil Palm Best Management Practices in Ghana

The oil palm sector in West Africa is developing extensively, yet plantation and small producers are performing well below their potential, with yields as low as one-third of the optimum. In order to ...

2013 Annual Report - Foliar N on Wheat

Results and Interpretations The measure of green cover (NDVI), a surrogate for crop biomass, conducted prior to the treatment applications returned no significant differences between treatments. It ca ...

Summary of BCG field trial - Foliar N on Wheat

UAN versus granular urea versus liquid urea

Getting Nitrogen into the crop - efficiently and effectively

Presented at GRDC Ballarat Advisor Update Feb 06, 2014, and the SANTFA Annual Conference, February 21, 2014.

Nutrients removed in hay crops

Paddocks cut for hay in 2014 may need special treatment for 2015

Assessing the indigenous nutrient supplying capacity of soils to Soybean in Vertisols of Northern Karnataka

A study was undertaken in the farmer fields growing soybean in Northern Karnataka with the following objectives 1. To assess the fertility status of soils in soybean growing areas of Northern Karnatak ...

Brazilian Nutrient Balance

Nutrient balance is a tool to evaluate the use of fertilizers. In order to have a sustainable crop production system it is necessary that the amount of nutrients removed from the field is replaced thr ...

Breaking Soybean Yield Barriers: Integrating Crop Production Practices & Comprehensive Fertilization Strategies – a Cropping System Approach

This project is studying the effects of different farming systems on soybean yield in major production regions of the Americas. The specific research objectives are to: 1) quantify soybean yields acro ...

Enhanced Nitrogen Research Initiative

This research will include comparisons of commercially available N fertilizers, namely granular urea and liquid UAN, with and without N fertilizer stabilizers.

Field validation of Nutrient Expert for early and late rice in China

Nutrient Expert Rice was developed to evaluate and validate fertilizer recommendation method based yield response and agronomic efficiency as compared with soil testing and farmer's practice

Field validation of Nutrient Expert for middle season rice in China

response and agronomic efficiency as compared with soil testing and farmer's practice

Field validation of Nutrient Expert for single season rice in China

Nutrient Expert Rice was developed to evaluate and validate fertilizer recommendation method based yield response and agronomic efficiency as compared with soil testing and farmer's practice

Field validation of Nutrient Expert Soybean in China

Nutrient Expert Soybean was developed to evaluate and validate fertilizer recommendation method based yield response and agronomic efficiency as compared with soil testing and farmer's practice

Meta-analysis of Enhanced Efficiency Fertilizers in Corn Systems in the Midwest

Enhanced efficiency fertilizers can be an effective means of managing nitrogen to prevent losses to the environment, both to protect natural resources and improve crop yields. However, the range of en ...

On- farm precision nutrient prescription under pre- dominant cereal- cereal systems using Nutrient Expert®

The project was initiated to optimize nutrient usage and maximize cereal – cereal systems productivity in various rice growing ecologies and geographies in India. The research project will compare yie ...

Optimising the yield and economic potential of high input cropping systems in the High Rainfall Zone

The High Rainfall Zone in southeastern Australia has high yield potentials for wheat and canola, but growers are faced with challenges about resource allocation in a relatively new and rapidly evolvin ...

Predicting N Mineralization Using the Direct Steam Distillation Method in Flooded Soils

Flooded rice is a highly relevant in the State of Rio Grande do Sul (RS) where 1.07 million hectares were cropped in 2012/13 season producing 8 million tons, which represented 69% of the national prod ...

Salinity Mapping for Precision Variable Rate Fertilizer Application

The incidence of salinity affected areas in irrigated fields results in restricted crop growth in the saline areas. If fertilizer applications are a constant rate blanket application over the field, t ...

Alternativas para incrementar la eficiencia de uso de nitrógeno en los cultivos de grano y mitigar las emisiones de óxido nitroso

El óxido nitroso (N2O) es uno de los principales gases de efecto invernadero (GEI) junto con el dióxido de carbono (CO2) y el metano (CH4). Si bien las emisiones de N2O son mucho menores que las de CO ...

Actualización en Fertilidad de Suelos y Fertilización de Cultivos

Presentaciones realizadas en los seminarios de Santa Rita y Minga Guazu (Paraguay) en Noviembre 2013.

Nitrification

Understanding the process of nitrification is central to managing the soil nitrate supply. Careful management of ammonium nutrient sources can help achieve the desired crop nutrient supply and minimiz ...

Nitrate Leaching

Nitrate is critical for supporting plant growth, but it is vulnerable to leaching through soil. The goal of minimizing nitrate leaching requires maintaining only enough nitrate in the root zone to mee ...

Managing Urea

Urea is the most widely used solid nitrogen (N) fertilizer in the world. Understanding its behavior is important for getting the maximum benefit from this important plant nutrient.

Managing Nitrogen

The goal of responsible stewardship is to use N fertilizer as efficiently as possible and minimize preventable losses from the soil system.

Ensayos de la Campaña Verano 2012/13 del CREA Santa Cruz Este (Bolivia)

El grupo CREA Santa Cruz Este (Bolivia) ha establecido una red de ensayos de nutricion con el objetivo de determinar deficiencias y respuestas en los cultivos de la región y contribuir al desarrollo d ...

Fertilidad de suelos y fertilización ¿Dónde estamos y a dónde vamos?

Presentación realizada en la Jornada Tecnica de AFA Cañada de Gomez el 10 de Septiembre de 2013.

Nutrición de Cultivos de Cosecha Gruesa

Mayor eficiencia y efectividad en la búsqueda de altos rendimiento

Metales Pesados en Plantaciones: Antecedentes y Manejo

Presentación realizada por el Dr. Raúl Jaramillo

Управление азотным питанием растений в почве

А.А. Завалин, Г.Г. Благовещенская, Л.С. Чернова, Н.Я. Шмырева, Агрохимический вестник, № 4, 2012

Mejores Practicas de Manejo de la Nutrición de Maíz y Soja

Mayor eficiencia y efectividad en la búsqueda de altos rendimientos

Red de Nutrición Sur de Santa Fe CREA-IPNI-ASP ¿Qué nos enseño la campaña pasada?

Presentación realizada en las Jornadas de Actualización Tecnica CREA Sur de Santa Fe en Vendao Tuerto el 24 de Julio de 2013.

Will N fertilizer run down soil organic matter

Presentation at Agronomy Community Meetings

Project Description - Evaluation of late nitrogen applications to achieve yield potential and increased protein content in wheat

This project aims to contribute to the knowledge gaps identified by the HRZ RCSN in the program logic for the very high priority issue of nitrogen management. The research question is – Can we achieve ...

6th International Nitrogen Conference - 2013

18 a 22 de Novembro 2013, Kampala, Uganda.

Panel 7 - El manejo de nutrientes según los asesores

1. Centro. Ing. Agr. Miguel Boxler. Región CREA Sur de Santa Fe. 2. Sur. Ing. Agr. M. Sc. Martin Zamora. MAA-INTA Barrow. Tres Arroyos, Buenos Aires. 3. Oeste. Ing. Agr. Nicolás Capelle. Consultor Pri ...

Panel 3 - Nutrición de cultivos alternativos

1. La experiencia canadiense en el manejo de la nutrición de arveja, lenteja, garbanzo y colza. Dr. Tom Jensen. IPNI Oeste de Canadá. 2. Claves para el manejo nutricional del cultivo de arveja. Ing. A ...

Generalized Nutrient Cycles

View and download some of the generalized nutrient cycles developed by IPNI.

Изучение минерального питания кормового сорго

А.В. Дронов, В.В. Дьяченко, Р.Н. Светличный, Ю.М. Храмко, Агрохимический вестник, №5, 2012

Regional Nutrient Budgets for Australia.

Summary of a presentation made at the ANZ Soils Conference.

Project Description - Assessment of Agronomic and Economic Benefits of Fertilizer Use in Maize Production Systems under Variable Farm Size, Climate and Soil Fertility Conditions in Eastern India

Background/Justification Eastern India is one of the most populous and intensively cultivated regions in the world. Farming in Eastern India is characterized by small landholders. Typically low resour ...

2012 Annual Interpretive Summary - Evaluation of the Potassium Status of Arable Soils in Ukraine on the Basis of Modern Soil Diagnostic Techniques and Development of Recommendations for the Rational and Efficient Application of Potassium Fertilizers.

The project aims to provide an accurate assessment of K status of arable soils, determine the demand for K fertilizers, establish the efficiency of K fertilizers in the soils of the main soil-climatic ...

2012 Annual Interpretive Summary - Nitrogen dynamics under elevated carbon dioxide

By 2070, atmospheric carbon dioxide (CO2) concentration is expected to double that observed in 1950. In this higher CO2 world, the sustainability of global crop production may be in jeopardy unless cu ...

Growth, yield and photosynthetic responses to elevated CO2 in wheat genotypes - Growth, Yield and Water Use of Wheat under Elevated Carbon Dioxide

The Australian Grains Free Air Carbon Dioxide Enrichment (AGFACE) project in Horsham, Victoria was designed to simulate atmospheric carbon dioxide levels in the year 2050 and then to use those data to ...

Nutrient Uptake and Accumulation in Corn

Figures from Karlen et al. 1988. Agron. J. 80:232-242.

Advancing Intensive Management of Corn Systems in Minnesota (Rainfed)

This project is focused on high-yield continuous corn systems - Rainfed

Agronomic evaluation of control-release urea (CRU) in maize and rice in Heilongjiang

The objective of this study was to explore the right rate of CRU and the right blending ratio of CRU to regular urea

Assessment of Nutrient Contribution towards Yield of Bt Cotton through Omission Plot Techniques in Karnataka

The project was initiated to assess the yield responses to N, P and K fertilizer application in different Bt cotton growing farmer fields and also understand the extent of indigenous nutrient supplyin ...

Development and Validation of Nutrient Expert for Maize in Bangladesh

The project was initiated to develop and validate the Nutrient Expert for Maize, a site specific fertilizer recommendation tool for maize, in different maize growing areas of Bangladesh. The results f ...

Documenting Symptoms and Critical Values for Nutrient Deficiencies in Wine Grapes

Photographic images of nutrient deficiency symptoms were gathered for this project

Effects of Nitrogen on Oxalate Accumulation Mechanisms in Different Spinach Genotypes

Over application N fertilizer is quite common, especially for vegetable in China. Therefore, supported by IPNI China program, the project cooperators in Zhejiang University carried out this research p ...

Evaluation of late nitrogen applications to achieve yield potential and increased protein content in wheat

In the southeastern Australian high rainfall cropping zone, growers have the opportunity to apply nitrogen later in crop growth because of the higher probability of followup rains. This project establ ...

Foliar N on Wheat

Comparison of delivery of N through dry or fluid N sources

Nitrogen Management and Water Productivity of Limited Irrigation Corn

This project seeks to improve crop water productivity of irrigated maize by better understanding the interaction of nitrogen fertility management and limited irrigation.

Source, Rate, and Time of Nitrogen Fertilization for Sugarcane

The requirement for worldwide abundant food, feed, fiber, and more recently biofuel, leads to higher amounts of fertilizer utilized in agriculture in diverse parts of the globe. Nitrogen (N) is, most ...

Study and Application of Nutrient Management Expert System in a Summer Maize-Winter Wheat Rotation

IPNI China program is encouraging the use of crop nutrient management expert system in China, Since 2013, supported by IPNI China program, the project cooperators in the Soil and Fertilizer Institute, ...

Suelos y Fertilización: Taller 2012 de CONAPROLE

Presentacion realizada en el Taller de Actualizacion de CONAPROLE realizado en Soils (Canelones, Uruguay) el 29 de Noviembre de 2012.

Presentación Proyecto "Productividad e impacto ambiental de sistemas intensificados de producción de granos"

El Proyecto Global Maize de IPNI en Argentina esta incluido dentro del Proyecto "Productividad e impacto ambiental de sistemas intensificados de producción de granos", un trabajo conjunto de INTA, las ...

Fertilización de cultivos extensivos en sistemas bajo riego

Presentacion realizada en la 3era. Reunión Internacional de Riego "Rendimientos potenciales con uso eficiente de agua e insumos ", organizada por la EEA INTA Manfredi el 30 y 31 de Octubre de 2012 en ...

N & P responses for oaten hay

Presentation at 2012 ASA Meeting, Armidale, NSW.

Sintomas de deficiência de nitrogênio

Nitrogênio: Amarelecimento da ponta para a base em forma de "V"; secamento começando na ponta das folhas mais velhas e progredindo ao longo da nervura principal; necrose em seguida e dilaceramento, co ...

Deficiência de nitrogênio

Nitrogênio: A lavoura de soja com deficiência de nitrogênio vai perdendo a cor verde-escuro, passando a verde-pálido com um leve amarelado e, dias mais tarde, todas as folhas tornam-se amarelas. Este ...

Deficiência de nitrogênio

Imagem do Grupo Stoller, protegida por Lei Federal

Deficiência de nitrogênio: à esquerda, planta com nutrição normal; à direita, planta deficiente em nitrogênio

Nitrogênio: Clorose nos folíolos das folhas mais velhas, que caem prematuramente. As nervuras tornam-se mais destacadas do fundo. Com a evolução da deficiência a clorose se acentua, podendo, no entant ...

Deficiência de nitrogênio: Progressão dos sintomas foliares em E. grandis x E. urophylla

Nitrogênio: Inicialmente as folhas velhas apresentam coloração verde clara, que vão ficando amarelecidas e com pequenos pontos avermelhados ao longo do limbo.

Deficiência de nitrogênio nas folhas

Nitrogênio: Folhas novas verde-pálidas, tornando-se amarelo-esverdeadas quando crescem; vegetação rala; ausência ou poucos frutos de cor pálida.

Deficiência de nitrogênio: as folhas mais velhas tornam-se verde-pálido

Nitrogênio: Efeitos generalizados sobre toda a planta; definhamento das folhas mais velhas. Lâminas foliares uniformemente verde-claras a amarelas; colmos ficam mais curtos e mais finos; atraso no des ...

Deficiência de nitrogênio (à esquerda, ramo normal)

Nitrogênio: as folhas mais velhas são as primeiras a amarelecer, particularmente durante o crescimento dos frutos. A vegetação é rala. Os galhos podem secar da ponta para a base se a colheita tiver si ...

Crop Yield and Soil Fertility as Influenced by Nutrient Management in Rainfed Inner Mongolia

Traditional nutrient management within the rainfed regions of Inner Mongolia usually results in poor crop productivity. In this study, six successive crop seasons found N, P, and K fertilizer to be re ...

Deficiência de nitrogênio em lavoura de arroz

Nitrogênio: A deficiência de nitrogênio no solo é causada por baixo teor de matéria orgânica e perdas por lixiviação, volatilização, desnitrificação e erosão. O sintoma de deficiência de nitrogênio é ...

Response of potato to fertilizer application and nutrient use efficiency in Inner Mongolia

Inner Mongolia autonomous region (IMAR) is one of the major potato production area in China. The planted area of potato in IMAR is now about 760,000 ha and the total production is 9.55 million tons. T ...

Maize Response to Balanced Fertilizer Application in Northwest China

On-farm trials in NW China showed that the addition of potassium to N and P fertilizers used for maize resulted in an average increase of 1207 kg/ha more yield and USD 300/ha more income than the farm ...

4R Nutrient Management Practices for Potato Production in China

In China, potato yields have been restricted by low and unbalanced nutrient input. A key measure to better tuber yield, quality, and improved nutrient use efficiency will be successful implementation ...

Clorose geral de algodoeiro adubado com apenas 25 Kg de N/ha, em solo continuamente cultivado

Nitrogênio: Inicia-se com um amarelecimento uniforme da parte vegetativa, com destaque para as folhas mais velhas, do "baixeiro" das plantas, onde surgem pontos avermelhados e/ou pardos nos limbos. Há ...

Agronomic Evaluation of Nutrient Management for Potato in Northwest China

This article summarized the effect of balanced fertilization on potato yield, nutirent limiting factors and nutrient use efficiency in China Northwest

¿Qué nutrientes están limitando los rendimientos?

Presentacion realizada en la 15a. Jornada de Actualizacion Tecnica en Soja "Para rendir al maximo" organizada por Don Mario Semillas en Chacabuco el 13 de Septiembre de 2012.

Mejores Prácticas de Manejo de la Nutrición para una Agricultura Sustentable

Presentacion realizada en INTA Cañada de Gomez el 5 de Julio de 2012.

La sustentabilidad en los sistemas de cultivos - El manejo de la nutrición

Presentacion realizada en el Curso de Fundacrea en Buenos Aires el 26 de Junio de 2012.

Mejores Prácticas de Manejo de la Nutrición para una Agricultura Sustentable (Best management practices for crp nutrition in a sustainable agriculture)

Presentacion realizada en las jornadas de capacitacion de ASP en 9 de Julio, Bolivar, y Venado Tuerto en Junio de 2012.

La nutrición de cultivos en una agricultura sustentable

Presentacion realizada en las Jornadas de Capacitacion de Bunge en Mar del Plata (Buenos Aires) el 15 de Junio de 2012.

Trigo 2011/12 en la Red de Nutrición de CREA Sur de Santa Fe - Establishing a Plant Nutrition Network for the CREA Region in Southern Santa Fé

En el presente informe se reportan los resultados de los ensayos de la Red de Nutrición de Largo Plazo correspondientes al cultivo de Trigo de la Campaña 2011/12, desarrollado en tres sitios bajo rota ...

Mejores prácticas de manejo de la nutrición de trigo-cebada/soja

Presentacion realizada en las joranadas regionales de ASP en Junin y Lincoln (Buenos Aires) el 8 y 9 de Mayo de 2012.

Some Things to Know About Nitrogen

Nitrogen — Plants cannot survive without nitrogen (N). Healthy plants contain up to 5% of this vital nutrient and the Earth’s atmosphere is about 78% N…it is all around us. There are approximately 75 ...

Nutrient Source Specifics Series

http://www.ipni.net/specifics

2011 Annual Interpretive Summary - Longerenong Cropping Challenge

Thirteen groups participated in this agronomy challenge, where advisors were asked to provide crop management plans for the production of a wheat crop on the same plots used for canola in 2010. The ma ...

2011 Annual Interpretive Summary - Nitrogen dynamics under elevated carbon dioxide

Elevated atmospheric CO2 affects growth and yield which then affect processes controlling the supply and losses of N to sustain these increases. This research was undertaken to measure the effects of ...

Project Description - Improvement of Maize and Soybean (Chickpea) Mineral Nutrition on a Calcareous Common Chernozem

The Global Maize project was initiated in 2011 in Rostov Oblast, Southern Russia, on a common chernozem. Maize-soybean crop rotation was studied at the A-site in 2011-2014 and since 2015 it was change ...

2011 Annual Interpretive Summary - Nutrient Management and Optimized Fertilization on Wheat and Maize in Henan Province

Nutrient Expert-based Fertilizer Recommendation for Winter Wheat and Spring Maize in Henan, 2011. This study was conducted to validate Nutrient Expert (NE)-based fertilizer recommendations for winter ...

Assessment of Agronomic and Economic Benefits of Fertilizer Use in Maize Production Systems under Variable Farm Size, Climate and Soil Fertility Conditions in Eastern India

Farming in Eastern India is characterized by small landholders. Typically low resource availability to the farmers and low profitability from cereal farming necessitates that inputs, including fertili ...

Documenting Nutrient Deficiency and Accumulation Rate in Vegetables

Greenhouse hydroponic study to document nutrient deficiency symptoms in various annual and perennial crops

Improved Nitrogen Fertilizer Practices for Highbush Blueberry

A series of blueberry fertilizer trials have been established near Corvallis, OR. These field experiments are using several of the most common varietal material, so differences in genetics can also be ...

Improvement of Winter Wheat Mineral Nutrition on Calcareous Common Chernozems

A one-season demonstration experiment in winter wheat grown after sunflower is conducted on farmer’s field. Recommended nutrient management is compared with farmer fertilizer practice. The variability ...

Large Urea Granules for Broadcast Application in Perennial Forage Grasses

Large and regular sized urea applied with and without urease and nitrification inhibitors, surface applied, or banded, in fall or spring, for perennial forage grasses.

Mejores Prácticas de Manejo de la Nutrición de Suelos y Cultivos

Presentacion realizada en la Jornada de Ganaderia y Ambiente organizada por INIA Remehue e IPNI el 6 de Diciembre de 2011.

Nitrogen Fertilizer Production and Technology

Presentation made at the 2011 ASA-CSSA-SSSA International Annual meetings, October 16-19, 2011, San Antonio, TX, USA.

Nutrient Balance Assessments in Crop Production

IPNI sees on-going assessment of nutrient balance and nutrient use efficiency in crop production as one of its responsibilities. This page lists materials and/or tools developed by IPNI on assessments ...

Dinámica de los Macro y Micronutrientes, en los suelos de Santa Cruz y requerimientos de los cultivos de soya, trigo y maíz

Presentacion realizada en la Jornada de Capacitación Internacional “Manejo Sostenible de los Suelos Productivos de Santa Cruz” organizada por ANAPO, MDRT y Fo-Ar en Santa Cruz de la Sierra (Bolivia) e ...

Оценка дифференцированного применения азотных удобрений под рис на полях фермеров в режиме реального времени

Хармандип Сингх, К.Н. Шарма, Гагандип Сингх Дхиллон, Аманприт, Тедждип Сингх, Вики Сингх, Динеш Кумар, Биджай Сингх, Хармандип Сингх. #4, 2011

Роль элементов питания в повышении урожайности яровой пшеницы в Сибири

Рассматривается значение минеральных удобрений и других средств химизации для получения высоких и устойчивых урожаев яровой пшеницы – основной полевой культуры в Сибири. Достижимая урожайность этой ку ...

Agricultura de Precisión - Desafíos y Oportunidades para la Nutrición de Cultivos

Presentación realizada en el Simposio de Fertilización del X Curso Internacional de Agricultura de Precisión organizado por INTA Manfredi del 13 al 16 de Julio de 2011.

Nutrición, Ambientes y Rotaciones

Presentación realizada en Mundo Soja-Maíz en Buenos Aires el 7 de Julio de 2011.

Estrategias de Fertilizacion de Maíz para la Intensificación Sustentable

Presentación realizada en la jornada + Maíz organizada por AgroVerad y la Bolsa de Cereales en Córdoba el 2 de Julio de 2011.

Nitrogen topdress strategies for canola - 2011

Selecting the right rate and product for topdresssing canola in 2011.

Panel 3

Herramientas para la Intensificación de la Producción

Panel 4

Nutrición y Ambiente

Panel 5

Nutrición y Enfermedades

Panel 6

Avances en Manejo de Nutrientes: Proyecto INTA

Buscando la Dosis, Forma, Fuente y Momento Correctos de Fertilización en Cada Ambiente - De lo Global a lo Local

Presentación realizada en la Jornada de Actualización Técnica "El negocio del trigo y la cebada" de la Región CREA Mar y Sierras, el 29 de Abril de 2011 en Azul (Buenos Aires).

CROP NUTRITION WITH LOWER EMISSION OF NITROUS OXIDE

Nitrous oxide is one of several greenhouse gases considered responsible for the warming trend in the climate. Pound for pound, it is deemed about 300 times more effective in trapping heat than carbon ...

2010 Annual Interpretive Summary - Site Specific Nutrient Management for Soft Corn Varieties in the Highlands of Guatemala

In 2010, the total number of experimental sites at Alta Verapaz grew to 10, which is five more than in 2009. The same experimental design was used, that is, a balanced fertilization treatment based on ...

2010 Annual Interpretive Summary - Nitrogen dynamics under elevated carbon dioxide

The effect of elevated carbon dioxide concentration ( CO2 ) on greenhouse gas emissions from semi-arid cropping systems is poorly understood. Two studies were reported during 2010, one from the Austra ...

Research Highlight - Southeast United States

Research to develop a more profitable and environmentally-sound rice production system in North America

Dahlen Long Term Fertilizer Experiment

Results of canola grown on the long term N*P experiment at Dahlen, 10 km west of Horsham.

Delhi Declaration on Reactive Nitrogen Management for Sustainable Development

By consensus opinion, more than 350 delegates from 37 countries adopted the “Delhi Declaration on Reactive Nitrogen Management for Sustainable Development”, which emphasizes the importance of nitrogen ...

Research Highlight - Southwestern China

Research to control soil erosion, nutrient losses, and maintain crop yields through optimal surface mulching and cultivation on intensely sloped farmlands

Managing Nitrogen to Protect Water

Nitrogen fertilization is essential to crop production. Farmers can’t grow enough food to meet ever increasing world demands without it. The good news is that with proper management of available N fer ...

Improvement of Maize and Soybean (Chickpea) Mineral Nutrition on a Calcareous Common Chernozem

Ecological Intensification is compared with grower fertilizer practice in maize–soybean (chickpea since 2015) crop rotation at the A-site. Crop response to N is studied in both systems too. Actual asp ...

Large Urea Granules for Broadcast Application for No-till Cropping in Alberta Spring Wheat

Large and regular sized urea applied with and without urease and nitrification inhibitors, surface applied in fall or spring under no-till cropping.

Mineral Nutrition of Leafy Lettuce and the Impact on Verticillium Severity

Verticillium wilt on lettuce is influenced by mineral nutrition

Nitrogen Fertilization Methods for No-till Cropping of Winter Wheat in Central Montana

Earlier research in Alberta and North Dakota showed that using larger granules of urea compared to regular sized ag-grade urea was a means of increasing crop yield and reducing the potential for denit ...

Nitrous Oxide Emissions from the Application of Fertilizers: Source Partitioning

Meta-analysis review of the 4R impacts on nitrous oxide emissions in the Midwest U.S.

Research Highlight - Brazil

A Current Issue: Sustainable Production Systems under No-Till in the Cerrado

IPNI Research Projects - 2010

IPNI Research Project Summaries - 2010 This past year we provided financial and in-kind support to over 100 projects around the world. Our scientists work closely with the researchers and cooperators ...

Diez períodos de la Red de Nutrición CREA Sur de Santa Fe - ¿Qué llevamos al manejo de la fertilidad en nuestros lotes?

Presentación realizada en la Jornada de Actualización Técnica a Campo - Nutrición y Sustentabilidad de los Sistemas Agrícolas - Teodelina, 26 de Noviembre de 2010.

Barriers to Adoption of Nitrogen Fertilizer Technology in Western North America

Barriers to adoption of nitrogen management technologies in western North America are discussed.

IPNI at N2010, New Delhi

Information related to presentations by IPNI staff at the N2010 Conference held in New Dehli, December 3 to 7, 2010.

Environmental and Social Drivers of Improved Nitrogen Management Technology

Trends in U.S. and global food production and consumption, fertilizer nitrogen consumption, and water and air quality impacts are addressed.

Managing Fertilizer to Reduce Nitrous Oxide Emission in Eastern Canada

The findings presented are to be incorporated into a protocol to suit the requirements of existing and anticipated regulatory mechanisms facilitating the trading of carbon credits.

Eficiencia de Uso de Nutrientes y Mejores Prácticas de Manejo para la Nutrición de Cultivos de Grano

Presentación realizada en el II Encuentro Técnico de Fundacruz en Santa Cruz de la Sierra (Bolivia) el 9 de Agosto de 2010.

Mejores Prácticas de Manejo de los Nutrientes en Maíz y Soja

Presentación realizada en Dolores y Young (Uruguay) el 9 de Septiembre de 2010 en las jornadas técnicas de ASP Uruguay.

Bases para el Manejo Estratégico de la Fertilización en Maíz y Soja

Presentación realizada en Mundo Soja/Maíz el 15 de Junio de 2010 en colaboración con el Dr.

IPNI Introduces "Nutrient Source Specifics" Series

IPNI INTRODUCES “NUTRIENT SOURCE SPECIFICS” SERIES June 1, 2010—Norcross, Georgia, USA—The International Plant Nutrition Institute (IPNI) is introducing a new series of one-page, condensed fact sheets ...

Ongoing Efforts to Abate Greenhouse Gas Emissions

Several IPNI staff members have been actively involved in varying activities aimed at decreasing Greenhouse Gas (GHG) emissions from fertilizers.

Nitrous Oxide Emissions from Bermudagrass Turf Fertilized with Slow Release and Soluble Nitrogen Sources

Nitrous oxide is an important greenhouse gas (GHG) and the majority of emissions in the USA are from agriculture. Most of this comes from the soil and is linked to soil management and nutrient use. Al ...

Manejo de la Nutrición y Fertilización de Cultivos - Necesito fertilizar mis cultivos, ¿Cuánto, cómo y con qué?

Presentaciones realizadas en Rosario de la Frontera y Las Lajitas (Salta) el 13 y 14 de Mayo de 2010.

El Rol de la Fertilización en Sistemas de Rotación

Presentación realizada en Expoagro 2010 - 4 de Marzo de 2010.

2009 Annual Interpretive Summary - Site Specific Nutrient Management for Soft Corn Varieties in the Highlands of Guatemala

Five experimental sites were established at Alta Verapaz to initiate a site-specific management project in farm fields within the highlands of Guatemala. A simple experiment was designed to compare a ...

Project Description - Site Specific Nutrient Management for Soft Corn Varieties in the Highlands of Guatemala

Soft corn varieties for human consumption are grown in extensive areas of the highlands of Guatemala. Farmers own small farms and phase limitations in capital and technology and grain production is ge ...

2009 Annual Interpretive Summary - Nitrogen dynamics under elevated carbon dioxide

The Australian Grains Free Air Carbon Dioxide Enrichment (AGFACE) facility was established to compare wheat growth, yield, and development under ambient atmospheric carbon dioxide (a CO2 ~380 ppm) and ...

Project Description - Nitrogen dynamics under elevated carbon dioxide

It is known that N demand is lower under eCO2 and this reduces the rate at which N is cycled through the soil/plant system. The low availability of N progressively suppresses the positive response of ...

Project Description - Growth, Yield and Water Use of Wheat under Elevated Carbon Dioxide

Because of uncertainty about the effects of rising atmospheric carbon dioxide levels on crop growth, water use, grain yield and quality, there is a need to obtain data from field experiments conducted ...

2009 Crop Nutrient Deficiency Photo Contest Winners

. Results of 2009 Crop Nutrient Deficiency Photo Contest

2010 Crop Nutrient Deficiency Photo Contest Winners

IPNI has announced the winners of the 2010 Crop Nutrient Deficiency Photo Contest. This year’s group of entrants was indeed global in scope and our judges were provided with a very diverse collection ...

The Crop Nutrition Network in the CREA Region of Southern Santa Fe, Argentina

The Regional Consortium of Agricultural Experimentation (CREA), a farmer organization based in Southern Santa Fe, has collaborated with IPNI to establish a network of field experiments

Site-Specific Nutrient Management of Wheat in Eastern India

The main objective of this study was to evaluate the site-specific nutrient management (SSNM) in wheat in eastern India.

Evaluation of New Maize Hybrids Response to Zinc in Chihuahua, México

New maize hybrids used extensively in Latin America frequently show Zn deficiency.

Response of Potato to Ammonium Sulfate Nitrate in Idaho

A field experiment was conducted near Paul, Idaho, on irrigated potatoes to compare these experimental N fertilizers with conventional farmer practices that primarily rely on the use of urea ammonium ...

Ammonium Sulfate for Canola in Southeastern Australia

Evaluation of ammonium sulfate as a S source for rainfed wheat and canola cropping systems.

Better Fertilizer Decisions for Crops

The collation of 5000 field experiments on crop fertilizer responses from across Australia.

Grain mineral contents under elevated carbon dioxide

How will elevated carbon dioxide affect wheat grain macro and micro nutrient concentrations and grain functional properties.

Growth, Yield and Water Use of Wheat under Elevated Carbon Dioxide

Research on how elevated carbon dioxide will affect the growth and yield of wheat crops under future climates.

Improving Nitrogen Fertilizer Management in Surface-Irrigated Cotton

We propose conducting research in central Arizona to compare the common regional practice of N fertigation with knifed N injections in surface-irrigated cotton (i.e., level furrow irrigation). Additio ...

Improving Nitrogen Fertilizer Management in Surface-Irrigated Cotton

We propose conducting research in central Arizona to compare the common regional practice of N fertigation with knifed N injections in surface-irrigated cotton (i.e., level furrow irrigation). Additio ...

Improving nutrient use efficiency and profitability in rainfed production systems

Prevalence of yield gaps, multiple nutrient deficiencies and low nutrient use efficiencies in rainfed region helped in initiating this project. The project was aimed at establishing strategies for imp ...

Large Urea Granules for Broadcast Application in No-till Cropping - Alberta Agriculture - Lethbridge AB

Large and regular sized urea applied with and without urease and nitrification inhibitors, surface applied in fall or spring under no-till cropping.

N management for Brassica crops

Nitrogen use efficiency of different brassica crops

Nutrient Balances for Australian Natural Resource Management Zones

Estimating nutrient inputs and removals in Australian agricultural regions.

Nutrient Demand of Oil Palm Hybrids in Tropical America

Nowadays there are several oil palm regions in Latin America with plantings of the OxG material, which is a cross of Elaeis oleifera (American oil palm) with E. guineensis (African oil palm). There ar ...

Nutrient Expert Development and Assessment

This project aims to (1) develop, test, and refine new versions of Nutrient Expert (NE) for new crops and new geographies in Asia and Africa, (2) conduct field trials and build agronomic database for ...

Nutrient omission plots in spring wheat in Russia: Omsk Oblast and Republic of Bashkortostan

One-season nutrient (N, P, K) omission plots were conducted on leached chernozems in agricultural enterprises' fields. Fertilizer rates were calculated for the expected grain yield of 3 t/ha based on ...

Nutrition of Hybrid Willows for Bio-fuel Production

Seven different clones of willow grown as a potential bio-fuel crop were evaluated in their response to irrigation and N, P, K and S fertilization. After three growing seasons, prior to harvesting the ...

Study on Nutrient Management Technology for Vegetables in Wuhan

Over fertilization for vegetable in Wuhan is very serious problem. Therefore, supported by IPNI China program, the project cooperators in Wuhan Academy of Agricultural Science carried out this researc ...

Tools for sustainable oil palm production. In situ fertilizer studies for plantations in Ecuador.

There is a large and unmet demand of local research in oil palm nutrition. With support of the national oil palm guild we are carrying out a fertilizer trial in Ecuador to find local reference values, ...

Eficiencia de Uso de Nutrientes en Sistemas Agrícolas del Cono Sur de Latinoamérica

Presentación realizada en el XVIII Congreso Latinoamericano de la Ciencia del Suelo en San José (Costa Rica) el 16-20 de Noviembre de 2009.

Nutrient Management and Balanced Fertilization for Major Crops in Shanxi

Intensification of agricultural production with poor nutrient management practices has decreased N use efficiency and increased environmental pollution in northcentral China. Work in 2008 optimized N ...

IPNI Presentations at 2009 Tri-Societies Annual Meetings

IPNI Presentations at 2009 Tri-Societies Annual Meetings At the 2009 Meetings of the American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America in Pittsburgh, I ...

Mejores prácticas de manejo para la nutrición del cultivo de Colza-Canola

Juan Pablo Burzaco1, Ignacio A. Ciampitti2 y Fernando O. García2 1Facultad de Agronomía, UBA, Buenos Aires, Argentina. 2IPNI Cono Sur. Av Santa Fe 910, Acassuso, Buenos Aires, Argentina. burzaco@agro. ...

Maíz - Mejores Prácticas de Manejo de Nutrientes para una Mayor Rentabilidad

Presentación realizada en la Jornadas de Actualización Técnica en Maíz organizadas por CREA Sur de Santa fe en Monte Buey y Venado Tuerto los días 23 y 24 de Julio de 2009.

Nitrogen Use Efficiency and Emissions Hot Topics in Western USA

Western North America Director b Dr. Rob Mikkelsen /b has continued his active partnership with the University of California recently. Due to cutbacks, the University frequently relies on his expertis ...

Significant opportunities to increase maize production in the Philippines

First results from on-farm studies in seven regions indicate significant opportunities to increase maize production in the Philippines. Farmer fertilizer use was insufficient to achieve high, profitab ...

Panel 4

Las MPM para los Cultivos y Sistemas de Producción

Panel 5

Intensificación y Eficiencia en la Producción de Cultivos: Rol de la Nutrición

Managing Reactive Nitrogen EAP FRRCC 2009 Presentation

Proper agronomic N management can help reduce or minimize environmental N losses. The following Powerpoint slides were part of a presentation by Dr. Cliff Snyder, IPNI Nitrogen Program Director, to th ...

Eficiencia de Uso de Nutrientes y Mejores Prácticas de Manejo para la Nutrición de Cultivos de Grano

Conferencia presentada en el V Congreso Boliviano de la Ciencia del Suelo celebrado en Oruro en Marzo 2009.

Resultados de la Red de Ensayos Exploratorios en NPKS y Micronutrientes de FUNDACRUZ en las Zonas Norte, Centro y Este

Presentación realizada en la jornada técnica organizada por Fundacruz el 17 de Marzo de 2009 en las instalaciones de ANAPO (Santa Cruz de la Sierra, Bolivia).

2008 Crop Nutrient Deficiency Photo Contest Winners

. Results of 2008 Crop Nutrient Deficiency Photo Contest

Fertilizer Best Management Practices - CIG Version

These publications are a series prepared by cooperators with the staff of the International Plant Nutrition Institute (IPNI). It is part of a project in cooperation with the Foundation for Agronomic R ...

FERTILIZER: AN INVESTMENT FOR 2009 CROPS

FERTILIZER: AN INVESTMENT FOR 2009 CROPS February 23, 2009-Norcross, Georgia, USA-Like baseball teams across the land, most farmers plan to go into the spring with hopes of the best season they've eve ...

Field Evaluation of Urea Compared to Enhanced Urea Products

The experiment was conducted in the 2009 field season at a field site in West Central Saskatchewan in the Dark Brown soil zone near Kindersley, SK. The trial evaluated the yield response of canola (fo ...

Global Maize Project in China: Dahe, Shijiazhuang, Hebei Province

Project was initiated in 2009 from summer maize rotated with winter wheat to test how the performance of ecological intensification (EI) compares to that of current farmer practice (FP).

Global Maize Project in China: Liufangzi, Gongzhuling, Jilin Province

Project was initiated in 2009 to test how the performance of ecological intensification (EI) compares to that of current farmer practice (FP)

Nitrogen dynamics under elevated carbon dioxide

How will high carbon dioxide concentrations affect the cycling of nitrogen in crop production systems.

Nitrogen Recalibration for Corn in North Dakota

The nitrogen (N) recommendations for corn in North Dakota (ND) need to be updated using actual field results from ND. Existing recommendations are based on Minnesota data, and older ND field calibrati ...

Nutrient Management and Optimized Fertilization on Wheat and Maize in Hebei Province

The project has been focusing on Nutrient Expert based fertilizer recommendation since 2010

Research in Herbosa Succession Process Based on Soil Fertility Evolution

Weed biodiversity is one of the indicators of farmland ecological environment and greatly affected by different fertilization patterns. This research program was to study weed community under differen ...

Balanced Fertilization on Cash Crops in Southwest China

Balanced fertilization on production of high-yield Baxi banana Application technologies of K, Mg and S for the first and second Baxi banana plant were studied. The vegetative growth, floral emergence, ...

Presentaciones en el XI Congreso Ecuatoriano de la Ciencia del Suelo

Presentaciones realizadas en el Congreso de Suelos realizado en Quito (Ecuador) el 29-31 de Octubre de 2008.

Fertilizer Best Management Practices (BMPs)

The concept of fertilizer best management practices (BMPs) is not new...it was first introduced almost 20 years ago. Fertilizer BMPs are more important today than ever before and need to be based on a ...

La Eficiencia de la Fertilización

Presentación realizada en la JAT CREA Región Centro el 3 de Septiembre de 2008.

Las Mejores Prácticas de Manejo de los Fertilizantes - Desafíos para Soja y Maíz en 2008/09

Presentación realizada en la Jornada Soja+Maíz - Soja con Sustentabilidad.

Mejores Prácticas de Manejo y de la Nutrición en Cultivos de Cosecha Gruesa

Presentación sobre las MPM de nutrientes y fertilizantes en cultivos de cosecha gruesa realizada el 22 de Agosto de 2008 en la Jornada de Actualización Técnica en Cosecha Gruesa organizada por la Regi ...

Fertilizer Nitrogen BMPs to Limit Losses that Contribute to Global Warming

The right fertilizer N management decisions in producing corn and other crops can help reduce the impact on greenhouse gas (GHG) emissions and global warming potential. These fertilizer best managemen ...

Mejores Prácticas de Manejo para la Fertilización de Maíz

Presentación sobre las MPM de nutrientes y fertilizantes en el cultivo de maíz realizada el 31 de Julio de 2008 en las Segundas Jornadas de Actualización Técnica del Cultivo de Maíz organizadas por la ...

Seminario "Criterios para la fertilización con P y K en sistemas agrícolas" - Paysandú (Uruguay) - Julio 2008

Presentaciones realizadas en el Seminario "Criterios para la fertilización con P y K en sistemas agrícolas" realizado en Paysandú (Uruguay) el 24 de Julio de 2008.

Nutrients and Hypoxia in the Gulf of Mexico — An Update on Progress, 2008

Based on data presented here and in the U.S. Environmental Protection Agency’s ScienceAdvisory Board (EPA SAB) 2008 report, there is reason to believe that b declines /b in discharge of N and P to the ...

Nutrición de Maíz y Trigo en la Región Pampeana Argentina

Presentación realizada en el X Congreso Nacional de FENALCE (Federación nacional de Cerealistas) de Colombia el 19 de Junio de 2008.

2007 Crop Nutrient Deficiency Photo Contest Winners

Results of 2007 Crop Nutrient Deficiency Photo Contest On this page, we highlight winners for each of the four categories. The entries were judged on the overall quality of the image as well as the su ...

Organic Agriculture

Organic Agriculture This page contains a collection of references on organi ...

New Nitrogen Fertilizer Products and Technologies

Papers from the session b New N Fertilizer Products and Technologies /b chaired by IPNI at the 2007 International Nitrogen Conference held in Costa do Sauipe, Brazil October 01 - 04, 2007.

Greenhouse Gas Emissions from Cropping Systems and the Influence of Fertilizer Management

Scientific staff of the International Plant Nutrition Institute (IPNI) have prepared a literature review to extend information that will lead to a better understanding of fertilizer N management pract ...

A Micrometeorological Study to Quantify Ammonia Volatilization Losses from Surface Applied Urea in the Semiarid Northern Great Plains

Montana winter wheat growers broadcast surface apply urea to their crops in late fall, or early spring to supply the crops with needed nitrogen. Urea is known to be susceptible to ammonia (NH3) volati ...

Evaluation of Phosphate and Nitrogen Fertilizers Treated with Polymer Additives to Increase Fertilizer Efficiency

The use of polymer additives to regular soluble fertilizers to increase the uptake of fertilizer nutrieIt is thought to slow down the reaction of the fertilizer nutrient ions and molecules with soil c ...

Evaluation of Phosphate and Nitrogen Fertilizers Treated with Polymer Additives to Increase Fertilizer Efficiency

The Richardson International Kelburn, MB research and demonstration farm was the site of experiments evaluating Avail additive for both dry granular and liquid phosphate fertilizers. there were also e ...

Evaluation of Urea Nitrogen Fertilizer Treated with Nutrisphere Polymer Additive to Increase Fertilizer Efficiency

The use of polymer additives to regular soluble fertilizers has been shown to increase the uptake of fertilizer nutrients into target crops. The mechanism of activity of the polymers is thought to slo ...

Global Maize Initiative

The Global Maize project is an interdisciplinary, international research effort with an overall objective of creating local, ecological intensification (EI) practices for maize production that increas ...

Nitrogen PowerPoint Presentations

N focused PowerPoint presentations from IPNI staff.

MANAGING CROP NITROGEN FOR WEATHER SYMPOSIUM PROCEEDINGS AVAILABLE FROM IPNI

The contents of a new publication titled Managing Crop Nitrogen for Weather, based on the proceedings of a symposium at the 2006 meeting of the Soil Science Society of America (SSSA), provide details ...

Nitrogen focussed publications

This page has moved: http://npg. ipni.

The Fertility of North American Soils

This is a report of the phosphorus (P) and potassium (K) fertility of the soils of North America. The data used in this report were provided by 70 major North American public and private soil testing ...

Fall Fertilization

As the calendar turns to fall each year, most farmers and their advisers are preoccupied with harvest and all the related priorities that go with it. Of course that’s important, but fall is also prime ...

Impact of Rising Nitrogen Prices

Natural gas represents a major portion of the cost of ammonia production, and concern continues about effects on nitrogen (N) fertilizer prices.

Fertilizer Economics - Tools for Management

How can growers best react and handle the unexpected conditions arising from increased fertilizer prices?

Assessment of Soil Quality on TSN Plots at Ellerslie and Breton Utilizing Physical, Chemical, and Biological Properties

Assess the impact of consistent management, tilled vs no-till, straw removed or not, and N application rate on soil quality using physical, chemical and biological properties at Ellerslie and Breton, ...

Long-term Nutrient Management Network for Southern Buenos Aires Province

This project involves a series of on-farm field experiments with a common protocl looking for grain yield response to N, P, S, and other nutrients.

Nitrogen Recommendation Recalibrations for Wheat in North Dakota

A multiple year research study updating N response and recommendations for wheat in various agro-ecological areas of North Dakota.

Some Things to Know About Nitrogen

Plants cannot survive without nitrogen (N). Healthy plants contain up to 5% of this vital nutrient and the Earth’s atmosphere is about 78% N…it is all around us. There are approximately 75 million lb ...

Effect of Phosphorus Fertilization on Field Pea Nitrogen Production

A site at Froid, MT was selected for the study, with a background soil P level of 19 mg P/kg of soil. A split-plot design was used with tillage (ZT vs CT) as the main plot, and crop and P rate as the ...

Nutrient management and optimized fertilization on selected crops in Liaoning province

The project has been focusing on Nutrient Expert based fertilizer recommendation since 2011

Nutrient management and optimized fertilization on selected crops in Liaoning province

The project has been focusing on Nutrient Expert based fertilizer recommendation since 2011

Nutrient Management and Optimized Fertilization on Wheat and Maize in Henan Province

The project has been focusing on Nutrient Expert based fertilizer recommendation since 2010

Nutrient Management and Optimized Fertilization on Wheat and Maize in Henan Province

The project has been focusing on Nutrient Expert based fertilizer recommendation since 2010

Nutrient Management and Optimized Fertilization on Wheat and Maize in Shanxi Province

The project has been focusing on Nutrient Expert based fertilizer recommendation since 2010

Nutrient Management and Optimized Fertilization on Wheat and Maize in Shanxi Province

The project has been focusing on Nutrient Expert based fertilizer recommendation since 2010

Soil Nutrient Stratification in Long-term Sustainable Cropping Systems Research Study

A tillage by rotation study evaluated after 11 years to determine if the use of no-till had led to nutrient stratification in the plots. The results of this study indicate that nutrients did become st ...

Strategies for Improving the Crop Safety and Efficiency of Starter Fertilizer for Saskatchewan Crops

Crops were planted in flats of soil are prepared to simulate a seed-bed and a low-disturbance opener configuration (10% seed bed utilization). Eleven commonly grown Saskatchewan crops (wheat, barley, ...

Evaluation of Long Term No-till Effects on Soil Fertility

The adoption of no-till seeding systems in western Canada has been driven by a variety of factors, moisture conservation and economic efficiency likely the major ones. This project was conducted to ev ...

Forage Rejuvenation with Phosphorus Fertilizer

Evaluate the management of dry and fluid P fertilizers, applied with N fertilizer, to restore the productivity of low producing forage stands in Saskatchewan.

Improving Phosphorus Management on Irrigated Potato

Assessed the effect of phosphorus management on potato yield and quality under Manitoba’s irrigated production systems.

Evaluation of Agronomic Practices and Quality Parameters of Timothy Hay

Determine how important maintenance fertilizer management is to maintain timothy stands and quality. Also whether additions of the micronutrient Cu are beneficial in maintenance of green color in timo ...

Improving the Quality and Profitability of Durum Wheat through Nutrient and Disease Management

Develop soil fertility (N and P) management strategies for Durum wheat, geared to maximizing production, improving grain quality, grain protein and achieving a higher grade for the grain they produce. ...

Optimizing Canola Production: Fertilization, Crop Protection and Genetic Yield Potential

Examine the individual and combined impact of three types of crop inputs: fertilization, crop protection and genetic potential for yield for canola (oil rapeseedl).

The Factor of N and P Fertilization Affecting the Concentration of a Nutraceutical Lignan in Flaxseed

As lignans are derived from phenylalanine, an amino acid found in protein, it is logical to ask the question of the effect of nitrogen and/or phosphorus fertilizers on the final concentration of SDG i ...

Assessing Nutrient Content of Crops and Nutrient Removal as Affected by Management Practices

A study to identify mineral nutrient removal in the harvested portion of crops grown in western Canada.

Quantifying Soil Carbon Sequestration: Textural Effects

Demonstrate that we can accurately quantify changes in soil C content by estimating soil C changes through the use of simulation models.

Development of Agronomic Practices for Chickpea Production in Alberta

Chickpea production information has not been developed for Alberta. Information on cultivar performance, inoculation, seeding rates, seeding dates, and fertilizer recommendations will be developed.

Establishing a Plant Nutrition Network for the CREA Region in Southern Santa Fé

On-farm field experiments establish as a long-term network in 2000, to evaluate responses to N, P, and S in wheat, soybean, and maize in the southern Santa Fe and Southeastern Cordoba regions. Evoluti ...

Establishing a Plant Nutrition Network for the CREA Region in Southern Santa Fé

On-farm field experiments establish as a long-term network in 2000, to evaluate responses to N, P, and S in wheat, soybean, and maize in the southern Santa Fe and Southeastern Cordoba regions. Evoluti ...

Impact of Nitrogen, Phosphorus and Potassium Chloride Fertilizer Management on the Growth and Yield of Oats

Develop fertilizer management strategies which optimize fertilizer use efficiency for oats in the eastern sub-humid Prairie.

Impact of Production System and Nutrient Addition on Grain Quality in Long-term Rotation Studies in Western Canada

Assess crop rotation and nutrient application on flax yield and nutrient uptake.

Improving Forage Production and Longevity of Alfalfa Stands with Balanced Fertilization

To determine the influence of balanced fertilization on forage production, longevity of alfalfa stands, weed population and disease severity.

Landscape Management of Agronomic Processes for Site-specific Farming

The objective of this project is to measure and model landscape dynamics for a hummocky topography in the Black Soil Zone of east central Alberta. Then evaluate the potential benefit of variable rate ...

Management for Maximum Economic Yield of Open Pollinated and Hybrid Canola

This research was initiated to determine whether higher yielding hybrid rapeseed (canola) varieties require a higher level of management to express higher yields, compared to older open pollinated can ...

The Effects of Potassium Chloride to Counteract the Negative Effects of Side-banded Urea on Plant Establishment

A series of experiments to determine if adding KCl to side-banded urea would increase the safety to the seedlings against the toxic effects of side banded urea, regardless of the separation between th ...

1996 Annual Interpretive Summary - Optimum Time and Placement of Fertilizer with Direct and Conventionally Seeded Winter Wheat

Poor weather, yields and prices caused winter wheat acreage in Alberta to decrease by several hundred thousand acres in the last 10-15 years. However, newer, higher yielding varieties are causing a re ...

Feeding the Plants that Feed the World

The developed resource is a science kit that includes hands-on experiments that show upper elementary and junior high school students how plants grow and their nutritional needs.

Fertility Management of Winter Wheat Grown after Alfalfa

Forage hay crops remove large amounts of nutrients from the soil, because of this, levels of available phosphorous, potassium and sulfur are often marginal for crops following forages.

Impact of Zero-tillage on Soil Quality Changes Under Crop Rotations and Fertilizer Treatments in a Black Soil

Assess whether or there has been a significant change in soil quality and/or yield trends in the 6 years since the field soil in this study were converted to no-tillage from conventional tillage.

The Influence of Fertilizer Placement on Crop and Weed Ecology in Direct-seeding Systems

Assess the impact of fertilizer placement on weeds in no-till seeding systems.

Agronomic and Economic Assessment of Variable Rate

Determine the agronomic information required to choose the optimum nutrient rates and assess the economic the benefits of variable rate fertilization.

Evaluation of seed placed fertilizer rates

Questions that now remain unanswered are urea impacts on calcareous soils and the role that ammonium sulphate might play in various mixes with urea and what the safe rates of combined N,P,K and S fert ...

Feasibility of a One-pass Seeding and Fertilizing System for Winter Wheat

Evaluate the feasibility of no-till planting of winter wheat in eastern Saskatchewan.

Increasing Flax Yields: A Closer Look at Fertilizer Utilization and Weed Management

Research results indicate that side-banding N with P at seeding will work well in flax production if there is good separation between the seed and fertilizer.

Chemical and physical changes in standing cereal straw residues in no-till fallow and its relationship to nitrogen and phosphorus availability

Adjustments to nitrogen and phosphorus fertilization rates may be required in fields which receive a no-till (herbicide) fallow treatment as compared to the conventional tillage fallow. For example, t ...

Reduced tillage systems: evaluation of the influence of tillage and fertilizer management on soil quality, crop productivity and economic sustainability

Results from the first two years of a four year field study conducted on two soil types to evaluate the effect of nitrogen source, timing and placement on canola and durum, under conventional and redu ...

The interactions of row spacing and seeding rate with seed placed phosphorus

Evaluate the effects of row spacing, seeding rate, and N and P fertilizer placement in spring and winter wheat, barley, durum and flax under no-till cropping.

DRIS analysis of forage alfalfa silage, grain corn and greenhouse cucumbers

To evaluate the use of Diagnostic Recommendation Integrated System (DRIS) analysis on three high value crops - irrigated alfalfa, irrigated corn, and greenhouse cucumbers.

Influence of phosphorus fertilizer on the soil quality of a historic irrigated rotation

Determine the influence of historic phosphorus application on soil quality and nutrient supplying power in a low input irrigated crop rotation.

Fertilizer effects on nitrate in water and soils

Document and summarize the scientific literature concerning ground water nitrate problems in Western Canada and provide a baseline for future studies.

Variable rate fertilization

In the last decade the need to fertilize soils rather than fields has been recognized and has led to the concept of variable fertilizer rates. Variable fertilizer rates have been advocated for a numbe ...

Nitrogen, phosphorus, and potassium fertility requirements for optimizing protein levels in malting barley

For optimum economic returns, fertilizer applications should be managed to apply sufficient N to attain the highest possible yield, without increasing protein content beyond the acceptable levels. For ...

Soil nutrient distribution as influenced by crop rotation and fertilization

Based on the agronomic and economic implications of including alfalfa in rotation with annual crops, what is the optimum and annual/perennial crop rotation for producers to utilize?

Maximum yield canola production

Assess agronomic management requirements to achieve high yielding canola.

Maximizing winter wheat production with conservation tillage in the Northern Great Plains

Project assessing the potential for reduced tillage production of winter wheat in the Northern Great Plains

Maximum barley production under varying soil moisture regimes

Assessing the effect of moisture availability and supply on barley growth and yield.

Interaction of fertilizer N and P and snow conservation on yield of spring and winter wheat in Southwestern Saskatchewan

This project evaluated the effect of N and P fertilization on wheat yield responsiveness to snow trapping for moisture conservation, in semi-arid south west Saskatchewan.

Investigation of Soybean Response to Potassium and Nitrogen Under High Yield Environments

Influence of tillage on soybean response to potassium, nitrogen, and micronutrient fertilization in high yield environments.