List Grid
Participação no 43º Congresso Brasileiro de Pesquisas Cafeeiras

Dr. Valter Casarin, Diretor Adjunto IPNI Brasil, participou da 43ª Congresso Brasileiro de Pesquisas Cafeeiras. O evento foi realizado no período de 07 a 10 de novembro de 2017, no Centro de Convençõe ...

Simpósio IPNI Brasil sobre Agricultura de Precisão como Ferramenta para Boas Práticas para Uso Eficiente de Fertilizantes

Realizado de 04 a 06 de outubro em Goiânia. O IPNI sendo uma instituição dedicada ao manejo e uso responsável e eficiente dos nutrientes das plantas, consideramos oportuno um evento que contemplasse o ...

Potassium responses in beans, canola and wheat

An experiment at Glenthompson, 2017

Palestra no 70 Simpas

Dr. Luís I. Prochnow proferiu palestra no 70° SIMPAS (Sistemas Integrados de Manejo na Produção Agrícula Sustentável), promovido pela Abimaq, Andef, Anda, Abag, Abrasem e IPNI, e realizado nos dias 12 ...

Manuel 4R est disponible en langues française et en arabe

Télécharger votre copie du manuel 4R soit en version arabe ou française à partir du lien indiqué à la gauche de la page.

Manuel 4R est disponible en langues française et en arabe

Télécharger votre copie du manuel 4R soit en version arabe ou française à partir du lien indiqué à la gauche de la page.

Nutrient Use Efficiency and Effectiveness in Australia: Assessing Agronomic and Environmental Benefit

Dr. Robert Norton, IPNI Australia & New Zealand Director, August 2017

Calagem em café: a lenta evolução de uma prática dogmática

A maioria dos solos utilizados para plantio do café no Brasil apresenta, em geral, características químicas inadequadas para o pleno desenvolvimento das plantas. Dentre essas características, podem-se ...

Conectando la nutrición de cultivos y el ambiente

Rob Mikkelsen en el Congreso Aapresid 2017.

IPNI and IJM Plantations Bhd Joint Training Course on Oil Palm 4R Nutrient Stewardship

IPNI has been engaged with the oil palm industry since the 1970s, supporting knowledge- and capacity-building. IPNI SEAP strengthens this support now with training. In July 2017, for the 1st time, IPN ...

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.

Dia de Campo sobre Adubação de Pastagens

Dr. Eros Francisco ministrou palestra no Dia de Campo sobre adubação de pastagens realizado na Faz NS Aparecida em Jaciara, MT, dia 15 de julho. O evento foi organizado pela fazenda em parceria com as ...

In-season nutrient management - 2017

Presented at Manangatang Victoria GRDC Update

磷素管理与4R养分策略

Terry Wyciskalla著, 谢玲 译 涂仕华 校 磷素影响水质,而且是地表水富营养化的常见原因。水溶性磷随渗漏水进入水体,非水溶性磷则随侵蚀土粒离开地表进入水体。 磷素管理 1.

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.

Palestra no II Simpósio de Ciência do Solo, na Universidade Federal de Lavras (UFLA)

Dr. Valter Casarin, participou como palestrante do II Simpósio de Ciência do Solo, na Universidade Federal de Lavras (UFLA). O evento realizado entre os dias 9 e 12 de maio. Confira a palestra!

Conceitos de Produtividade Agrícola e “Yield Gap”

O webinar abordou sobre yield gap, ou quebra de produtividade, que vem sendo amplamente abordado nos últimos anos em todo o mundo, bem como identificar as magnitudes e as principais causas dessas perd ...

Simposio Fertilidad 2017

Actas de las conferencias y posters presentados

Presentaciones en el IV Congreso Paraguayo de Ciencias Agrarias

Presentaciones realizadas en el IV Congreso Nacional de Ciencias Agrarias organizado por la Facultad de Ciencias Agrarias de la Universidad Nacional de Asunción del 19 al 21 Abril de 2017

Avaliação do modo de ação de fertilizantes e predição do desempenho agronômico e impacto ambiental

Neste webinar foram apresentadas algumas técnicas para avaliar o modo de ação de fertilizantes. As vantagens e as limitações destas ferramentas na predição do desempenho agronômico e do eventual impac ...

Fertcare Cane Presentations

Ayr, Bundaberg, Cairns, Ingham, Mackay, Proserpine.

IPNI Knowledge Dissemination (July 2017)

Oil Palm Course: 4R Nutrient Stewardship in Oil Palm (taking place in Sabah, Malaysia)

土壤残留磷与4R养分管理

Tom Bruulsema著, 谢玲 译 涂仕华 校 磷养育着整个世界。如果把磷肥从农业生产中拿走,世界粮食生产会受多大损失呢?答案却决于磷缺失的时间长度,但我们现有的数据仅仅来自有限的几个长期田间定位试验。美国堪萨斯州一个40年的长期试验发现,不施磷肥处理的玉米产量降低27%,高粱产量降低10%。在英国洛桑实验站,25年不施磷肥的小麦产量降低44%。在很多热带土壤上,作 .

4R Phosphorus Management Practices for Major Commodity Crops of North America

Dr. Tom Bruulsema, IPNI Phosphorus Program Director, March, 2017

Frontiers of Potassium Science Conference Website

O site da Conferência Internacional "Fronteiras do Potássio" já está disponível com informações e palestras.

大豆氮素:这是我们目前所知的

大豆氮素:这是我们目前所知的 Source: ILSOYadvisor. com Article. www. ilsoy. org By Dan Davidson 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 ...

Potassium responses on wheat and canola at Glenthompson, 2016

Field work undertaken in association with Southern Farming Systems.

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

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.

A Hora do Agronegócio, entrevista Dr. Luís Prochnow

Dr. Luís Prochnow, diretor do IPNI Brasil, fala a respeito do tema Segurança Alimentar e do grande desafio na produção dos alimentos nos próximos 40 anos.

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.

Vídeo: Atualidades sobre a Nutrição com Micronutrientes em Café

Webinar ocorrido em 14/12/2016 - Palestrante: Dr. Tiago Tezotto, UNIFEOB - São João da Boa Vista. Produzido pelo IPNI Brasil.

Journée sur la fertigation organisée conjointement par la chambre d'Agriculture de la region de Beni Mellal - Khenifra et IPNI North Africa

Dans le cadre de ses activités au Maroc, IPNI North Africa a organisé en collaboration avec la chambre d'agriculture de la region de Beni Mellal - Khenifra une journée sur la fertigation au profit des ...

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.

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.

Vídeo: Foliar Fertilization with Micronutrients: Concepts and Applications

Dr. Casarin discutiu como usar técnicas de adubação foliar para tirar vantagem da capacidade da planta para absorver micronutrientes pelas folhas.

Entrevista para programa Giro do Boi, Canal Rural

Dr. Eros Francisco, diretor adjunto do IPNI Brasil, participou do programa Giro do Boi do Canal Rural, 25 de Outubro de 2016. O programa Giro do Boi realizou uma entrevista com o Dr. Francisco para tr ...

Dr. Eros Francisco Ministra Aulas sobre Boas Práticas de Manejo de Fertilizantes

Como parte de suas atividades de extensão, Dr. Eros Francisco, ministrou aulas sobre dinâmica dos nutrientes no sistema solo-planta e sobre boas práticas de manejo de fertilizantes para alunos do curs ...

I Encontro de Engenheiros Agrônomos da Região do MATOPIBA

Foi realizado na cidade de Luís Eduardo Magalhães, um importante evento técnico no período de 6 a 8 de outubro no Sindicato dos Produtores Rurais. Dr. Valter Casarin, Diretor Adjunto do IPNI Brasil pa ...

“4R Plant Nutrition Manual” from an Oil Palm Agronomist’s Perspective

October 11, 2016. Penang, Malaysia – Penang-based independent oil palm agronomist, Chiu Sheng Bin recently reviewed and brought to the attention of planters, the 138-page “4R PLANT NUTRITION: A Manual ...

Simpósio IPNI Brasil sobre Boas Práticas para Uso Eficiente de Fertilizantes em Café

Simpósio realizado nos dias 27 e 28 de Setembro de 2016, Poços de Caldas-MG. Foi apresentado e discutido localmente as boas práticas de manejo dos nutrientes de plantas na cultura do café.

1 Pasture and animal production

Potassium for pastures

IV Encontro de Adubação de Pastagens

O IPNI Brasil organizou um painel sobre boas práticas do uso de fertilizantes em pastagens no IV Encontro de Adubação de Pastagens organizado pela Scot Consultoria e Tec-Fertil, ocorrido em Ribeirão P ...

Entrevista: Luís Prochnow, Diretor do IPNI, fala sobre a iniciativa Nutrientes para a Vida no Brasil

"Todo ser vivo necessita de nutrientes, as plantas não são diferentes e os produtos que fornecem os nutrientes são os fertilizantes. O solo também contém nutrientes, porém a frequência de cultivos pod ...

0 Potassium for sheep and beef pastures

Sheep and Beef Australia and New Zealand

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.

玉米低价情况下的养分管理

Scott Murrell著, 谢玲 译 涂仕华 校 目前玉米价格低迷,许多生产者提出这样尖锐的问题:此时他们如何管理养分?以下是一些建议,让他们在保证产量的同时尽可能降低肥料投入,从而获得更多所需回报。 考虑土壤现有养分状况。利用土壤中已有的养分优势。土壤测试结果对我们决定应当施用哪种养分,施用多少量能提供最佳指导。 考虑本农场或邻近农场的养分供应。如果你s.

IPNI Knowledge Dissemination (Nov 2016)

Oil Palm Course: 4R Nutrient Stewardship (back by popular demand)

Nitrogen mid-season

Yes - No - Wait

Inaugural IPNI Oil Palm Courses on 4R Nutrient Stewardship and Sustainable Intensification

July 28, 2016. Penang, Malaysia – The International Plant Nutrition Institute (IPNI), a leader in global plant nutrition, is dedicated to responsible nutrient management, with initiatives addressing t ...

IPNI Nutrient Expert® for Android Tablets and Smart Phones

July 18, 2016. Penang, Malaysia – International Plant Nutrition Institute (IPNI) is pleased to announce the release of android-based versions of Nutrient Expert® for crops and geographies, i. e. , mai ...

IPNI - Cocoa Care Collaboration Helping Farmers in Indonesia Revitalize Cocoa Production

Jun 22, 2016. Penang, Malaysia – The International Plant Nutrition Institute - Southeast Asia Program (IPNI SEAP) and PT Community Solutions International’s Cocoa Care Program, a scalable sustainabili ...

人类健康取决于土壤肥力

Tom Bruulsema著, 谢玲 译 涂仕华 校 2015年是国际土壤年。全世界各地的机构组织都在关注土壤在维持人类健康方面的关键作用。我们绝大多数的食物是生长在土壤上,而土壤的肥力决定了食物的大部分营养价值。 人类营养仍然处在危机之中。尽管从1990年起全球饥饿下降了21%,但至少有8. 05亿人类仍处于饥饿状态。在5岁以下的儿童中,1.

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

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. ...

Raízes para o crescimento: Alimentando o mundo

A importância dos fertilizantes no atendimento à demanda mundial por alimentos e a utilização das Boas Práticas de Manejo na produção agrícola.

Nutrient Use Efficiency beyond 2020

Dr Norton presents summary in Beijing

Palestra sobre adubação de pastagens

Dr. Eros Francisco ministrou palestra sobre adubação de pastagens para alunos do curso de agronomia da Universidade Federal de Rondônia em Rolim de Moura-RO.

O Uso do Fósforo na Agricultura com Ênfase em Localização

Vídeo do webinar ocorrido em 23/03/2016, realizado pelo IPNI Brasil e ABPSAP Associação Brasileira de Prestadores de Serviço de Agricultura de Precisão

A importância dos fertilizantes minerais para a nutrição das plantas

Dr. Luís I. Prochnow, Diretor do IPNI Brasil, em entrevista ao programa ClimaTempo

Precision Agriculture in the USA - Trends and Technologies

Vídeo do webinar ocorrido em 11/01/2016 - Dr. Steve Phillips, Diretor do IPNI USA

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.

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 ...

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 .

钾肥用量和施用时期对苹果产量品质和果园钾素平衡的影响

在辽宁盖州、山东栖霞、陕西凤翔开展田间试验研究氯化钾( KCl ) 用量和施钾时期对苹果产量、品质的影响,并与硫酸钾( K2SO4 ) 比较。研究确定了苹果经济最佳KCl 用量和最高产量KCl 用量,钾肥的最佳施肥时期和施钾对苹果品质的影响。.

钾肥用量和施用时期对棉花产量品质和棉田钾素平衡的影响

研究钾肥用量和施用时期对棉花产量、纤维品质、钾肥利用率和棉田钾素平衡的影响,确定钾肥正确的用量和合适的施用时期,可为棉花主产区科学施肥提供依据.

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.

Timing of K fertilizer affects yield and quality of lettuce in Chongqing

Under optimal fertilizer rates, adjusting timing of K fertilization can achieve better yield and quality of lettuce.

北方棉花的4R 钾肥管理措施

棉花分布在全国25个省份,面积超过7500万亩,皮棉总产量达650万吨。北方棉区主要分布在新疆、河南、河北、山东,面积和产量占全国的2/3以上,使农民增收的主要经济作物之一。钾对棉花高产优质至关重要,但北方棉区施钾量不足。这篇文章着重阐述了棉花生产中按照正确的品种、正确的用量、正确的施肥时期和施肥方法的4R养分管理措施进行钾肥管理对棉花产量、品质和 .

新疆加工番茄生产中4R 钾肥管理措施

新疆是我国加工番茄主要生产和加工基地,番茄种植面积由2001年的33万亩,增加到2010年的140万亩,产量已达500万吨。新疆光照充足、昼夜温差大、湿度低等有利于加工番茄生长和干物质积累。加工番茄的正常生长需要大量的钾素营养,对钾的需求量超过氮。然而传统上认为在新疆灰漠土上钾充足,从而导致农民长期不施用钾肥,造成土壤钾素耗竭,土壤有效钾含量下降,从而.

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 .

Promotion du concept de 4R en Algerie

Lors de sa visite en Algerie au mois de Mai 2015, Dr Hakim Boulal Directeur executif de IPNI Afrique du Nord a entamé une visite dans la région de Tiaret connue comme l'une des plus importantes région ...

4R Nutrient Stewardship for Crop Production Intensification in Ethiopia

The International Fertilizer Association (IFA) has funded IPNI to carry out a project to support crop production intensification in Ethiopia. The project will work towards developing tools for effecti ...

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 ...

El valor de estudios de largo plazo para el manejo de la nutrición de soja

Dr. Martin Díaz Zorita – Fertilizar Asociación Civil

《高效施肥》总第34期

4R作物养分管理专辑

4R作物养分管理示例

Module/case study for 4R nutrient stewardship

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 .

Nutrição mineral, fertilidade do solo e uso de nutrientes em cafeeiro, soja e pastagens

Dr. Eros Francisco, promoveu uma série de palestras nas principais cidades do estado de Rondônia entre os dias 14 e 16 de abril, sobre a nutrição mineral de plantas, a fertilidade do solo e uso de nut ...

Increased times of N splitting at vegetative growth period can advance banana blossom

In a field experiment to test effects of different rates and timings of controlled release urea (CRU) against regular urea (RU) on banana growth, it was observed that the CRU applied in three splits a ...

加工番茄的4R钾肥管理

新疆是我国加工番茄主要生产和加工基地,番茄种植面积由2001年的33万亩,增加到2010年的140万亩,产量已达500万吨。新疆光照充足、昼夜温差大、湿度低等有利于加工番茄生长和干物质积累。加工番茄的正常生长需要大量的钾素营养,对钾的需求量超过氮。然而传统上认为在新疆灰漠土上钾充足,从而导致农民长期不施用钾肥,造成土壤钾素耗竭,土壤有效钾含量下降,从而.

棉花的4R钾肥管理

棉花分布在全国25个省份,面积超过7500万亩,皮棉总产量达650万吨。北方棉区主要分布在新疆、河南、河北、山东,面积和产量占全国的2/3以上,使农民增收的主要经济作物之一。对棉花高产优质至关重要,但北方棉区施钾量不足。这篇文章着重阐述了棉花生产中按照正确的品种、正确的用量、正确的施肥时期和施肥方法的4R养分管理措施进行钾肥管理对棉花产量、品质和经 .

向日葵的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 .

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 .

营养生长期增加N肥施用次数促进香蕉提前抽蕾

在广东开展的控施尿素田间试验中,测试了普通尿素与控释尿素不同用量和施用时间对香蕉生长的影响。发现在所有处理中,控释尿素分三次施用香蕉生长速度最快,抽蕾率最高(85%)。对普通尿素来说,在同一时期内缺N处理的抽蕾率为11. 1%,分2次施用处理的抽蕾率为62. 9%,分3次施用处理的抽蕾率为74.

N in Agriculture

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

Boron

The role of boron

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 ...

Agronomic, economic, social and environmental benefits of improved nutrient management practices in maize production systems under variable farm size, climate, soil fertility conditions and farmer resource endowment in Telangana, India.

A study was undertaken with the scientists of PJTSAU considering the following objectives. 1. To determine farmer typologies through implementation of rapid rural surveys in maize growing ecologies of ...

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 ...

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 ...

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 ...

Increasing nutrient use efficiency in farming systems

presented at the Soil Science Australia biennial conference

Canola 4R Nutrient Management

Lessons from Australia, US Canola Association Research Conference.

Nutrient Use Efficiency

Presented at the 2014 AFSA meeting

Results from Capella (wheat) and Gindee (chickpea) - 2013.

Response to residual K from bands applied in 2011

4R Nutrient Stewardship for Sunflower Crops in Northwest China

Nutrient imbalance following over- and under-application of some nutrients has restricted sunflower production in Northwest China. A review of research demonstrates how the 4R Nutrient Stewardship app ...

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 ...

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.

Sulfur deficiency in canola

Taken at Bealiba, Victoria

Micronutrients Copper and Manganese

Their role, requirements and options

Nitrogen - how much is enough?

GRDC Grower Updates, Kimba, Cummins, Naracoorte

BMPSCN Manual on Soil and Plant Analysis and Fertilizer Recommendation - Best Management Practices for Sustainable Crop Nutrition in Bulgaria

This Manual contains information on soil and plant sampling and analysis, as well as recommendations for selecting appropriate fertilisers for field crops, vegetables, fruit and viticulture. The most ...

Nutrient Expert® Featured in CCAFS Annual Report

"The advantage of developing the Nutrient Expert® in a participatory mode was that the partners were on-board from day one and ultimately ‘owned’ the innovation.

Videos sobre los 4Rs del Manejo Responsable de los Nutrientes

Los 4 Requisitos (4Rs) del Manejo Responsable de Nutrientes son aplicar la fuente de nutrientes correcta, a una dosis correcta, en el momento correcto y el lugar correcto. EL Manejo Responsable 4Rs es ...

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.

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 ...

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.

Project Description - Impacts of 4R Nitrogen Management on Crop Production and Nitrate-Nitrogen Loss in Tile Drainage

Project Objectives As part of this field research and demonstration project, we propose to evaluate various promising N management methods and technologies by documenting the nitrate-N export and crop ...

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 ...

Project Description - Minimizing Phosphorus Loss with 4R Stewardship and Cover Crops

Project Goal: The goal of this project is to protect water quality and maximize nutrient use efficiency while simultaneously providing producers with flexible management options for phosphorus (P) fer ...

Project Description - Evaluating the 4R Nutrient Stewardship Concept and Certification Program in the Western Lake Erie Basin

Since the mid-1990s, the frequency and extent of algal blooms and loadings of dissolved phosphorus (P) in the Western Lake Erie Basin (WLEB) have been on increasing trends. Agricultural crop managemen ...

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 ...

Project Description - Determining the Environmental Optimum Rate of Fertilizer N for Irrigated Crops in the Semiarid Prairies

Objectives: The primary goal of this project is to identify the environmental optimum rate of fertilizer N (i. e. , the rate that provides the greatest yield increase with the lowest FIE) for irrigate ...

The effect of K applied at different times to wheat, Western Australia

Responses on a sandy soil in pot and field experiments

What’s new in Zinc – and some critical reminders?

Presented at GRDC Advisor Updates, Temora, NSW.

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.

Do we need to revisit potassium?

Paper presented at the Adelaide GRDC Advisor Update

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 ...

Dissemination of Nutrient Expert® Fertilizer Decision Support Tool for Wheat and Maize in Eastern India

A total of 24 KVKs across three states of this zone have conducted the NE® trial supported by IPNI. These KVKs are of Bihar, Jharkhand, and West Bengal. The common experimental design for all implemen ...

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

Managing micronutrient deficiencies in cropping systems of eastern Australia

This project will address these increasing concerns and speculation in a three pronged approach for all six micronutrients named in the tender (Mn, Zn, Cu, B, Mo, Fe) for all cropping regions in Austr ...

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 ...

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 ...

Project Description - 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

Research Concept The Green Revolution has been a global agricultural success story of the second half of the 21st century. The success has led to food self-sufficiency in the post populous regions of ...

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 ...

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 ...

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

The project aims to quantify the soil and environmental health indicators under conservation agriculture and precise nutrient management to develop strategies to counteract the changing weather condit ...

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 ...

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

Nutrient Optimization and Yield Intensification of Major Cereal Systems of Eastern India

India is the second largest producer of rice in the world with a production of 100 million t in 2010-11. However, it's current productivity is far below it's attainable yield level. Introducing hybrid ...

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, ...

Validation of fertilizer recommendations for soybean under high yielding crop production systems in Central and South of Russia

Fertilizer recommendations for soybean are developed and adjusted in field experiments conducted in Central and Southern Russia.

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 ...

Balanced Fertilization for Enhancing the Productivity of the Pearl Millet-Wheat-Green Gram Crop Sequence in Agra, Uttar Pradesh

Pearl millet-wheat is a common cropping system in dryland areas of India. However, system yields are often low due to inadequate and unbalanced nutrient application to the crops. This study was initia ...

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.

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.

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.

Addressing sulphur needs in-crop

Sulphur is an important part of a balanced crop nutrition program and this is a summary of options for in-crop S application.

Comparative Evaluation of Nutrient Dynamics under Conventional and No-till Systems of Crop Establishment in Rice-Wheat and Rice-Maize Cropping Systems

The project was initiated to assess nutrient availability under differing crop establishment and residue retention scenarios and to develop SSNM strategies for optimizing productivity of rice-wheat an ...

Effect of rate and timing of K on three crops

A glasshouse experiment comparing the rate and time of K application on wheat, canola and lupins.

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 ...

Site Specific Nutrient Management for the Rice-Maize System in Bihar

The project was initiated to assess the effect of contrasting tillage practices on nutrient supplying capacity of soils in the Lower-Gangetic Plains region of India, and utilize the information genera ...

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 ...

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)

Global Maize Project in India: Dharwad, Karnataka - Site Specific Nutrient Management in Maize-Wheat cropping system in Northern Karnataka

This project was initiated to assess the short and long term effects of ecological intensification of maize production on productivity, environmental impact, and profitability of farmers growing maize ...

Large Urea Granules for Broadcast Application for No-till Cropping - University of Alberta, Ellerslie, AB

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

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

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

Site Specific Nutrient Management for a Rice-Wheat System in Haryana

The project was initiated to develop site-specific nutrient management (SSNM) strategy for rice-wheat cropping systems grown under varying tillage and residue management scenarios and use the informat ...

Site Specific Nutrient Management for a Rice-Wheat System in Punjab

The project aims at developing principles and increase knowledge on effective nutrient management for rice and wheat in current production systems and in emerging conservation agriculture (CA) based s ...

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 ...

Comparison of P-based Starter Fertilizer Products, Forms, and Rates Affecting Crop Yields

There are increasing questions regarding different liquid and granular products in their seed-row efficacy at ultra low rates, etc. One of the practices we are most concerned about is the marketing an ...

Impact of Traditional and Enhanced Efficiency Phosphorus Fertilizers on Canola Emergence, Yield, Maturity, and Quality

A number of enhanced efficiency P products have been developed that may improve the effectiveness of seed-placed P fertilizer, by reducing the risk of seedling damage and/or maintaining the P in an av ...

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.

Effect of No-till on Vertical Stratification of P in Dryland Cropping Systems

A project assessing the stratification of no-till cropping compared to conventional reduced tillage under Montana, semi-arid conditions. Stratification of Olsen P was relatively similar among 1-yr NT, ...

Nutrient Management and Optimized Fertilization on Maize in Heilongjiang Province

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

Nutrient Management and Optimized Fertilization on Maize in Heilongjiang 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 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

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, ...

Yield and N and P Responses to Wheat to Long- and Short-term P Fertilization in a Brown Chernozem

A long-term field research experiment was designed to evaluate the impact of removing P fertilization from a fallow-wheat-wheat and a continuous wheat crop rotation after having applied P fertilizer f ...

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 ...

Impact of Long-Term Application of Phosphate Fertilizer on Cadmium Accumulation in Crops

To determine availability of residual P and Cd from long-term P accumulations for plant uptake and movement to water, as affected by soil type and environment, and to determine the rate of P and Cd de ...

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. ...

Phosphorus Fertility of Alfalfa Hay Stands in Southwest Saskatchewan

Alfalfa based forage stands in SW Saskatchewan are usually established with the intent of harvesting for five or more years. This study was initiated to evaluate the response of alfalfa to P fertilize ...

Effect of Foliar-applied Monopotassium Phosphate on High Yield Canola and Wheat Grown in Southern Manitoba

Assess foliar application of mono potassium phosphate (MKP) to enhance phosphorus nutrition of wheat.

Optimizing Phosphorus Fertilization and Inoculation in Chickpea and Lentil

Develop recommendations for pulse growers in optimizing rhizobial and/or P-solublizing inoculants and fertilizer P for direct-seeding of kabuli and desi chickpeas and lentils in the semiarid regions o ...

The Effect of Tillage System and Proceeding Crop on Phosphorus Response of Flax

Assess the interactive effects of tillage system, preceeding crop and P management on flax production.

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 ...

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.

Nutrient Requirements of Mixed Forages

This new project is attempting to demonstrate how balancing N and P, and harvesting methods can improve stand life and productivity.

Fertilizer Requirement of Irrigated Alfalfa

Results of the last 3 years indicate that a combination of soil and tissue tests provide the best option for predicting P response in alfalfa. However, neither worked well for K.

Maximizing Forage Productivity by Improving Effectiveness of P and K Fertilizers

Phosphorus fertilization is essential for good forage production. This study is showing how P fertilization affects dry matter yield and protein of alfalfa and bromegrass hay in central Alberta.

Polyphosphate hydrolysis in starter bands

A study to assess the rate of hydrolysis of polyphosphates placed in starter bands near seed row furrows.

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 ...

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.

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.

Modeling soluble soil P levels

P sorption and known rates of addition and removal to explain rates of P removal (i.e. uptake) by barley under uncontrolled field conditions and different P fertilizer treatments.

Maximum yields in Canadian Prairie soils - investigations on the efficiency of large broadcast applications of fertilizer phosphate

Determine the effects of a large P fertilizer application on subsequent crop yields, P availability, interactions with other nutrients, and economic feasibility.