| Fluid Fertilizers … 2008 and Beyond
Dr. Fixen, Senior Vice President, IPNI Americas Group, served as a keynote speaker at the 2nd Brazilian Symposium on Fluid Fertilizer held on July 7 in Piracicaba, Sao Paulo. The title of his presentation was "Fluid Fertilizers...2008 and Beyond". Dr. Fixen's presentation explained general trends for worldwide food production and how fluid fertilization can help to adequately drive plant nutrition. |
| Fertilizer BMPS and GHGs
Dr. Snyder delivered a presentation entitled - Fertilizer BMPs and GHGs (Greenhouse Gases), to the fertilizer breakout session at the annual meeting of the Association of Southern Feed, Fertilizer, and Pesticide Control Officials. The presentations and interactions by Dr. Snyder with the audience gave the regulatory officials a sample of the care and concern of IPNI for wise nutrient management and protection of water and air resources. |
| Nutrients and Hypoxia in the Gulf of Mexico--an Update on Progress
Presentation made at the annual meting of the Association of Southern Feed, Fertilizer, and Pesticide Control Officials. |
| Reducing Risk from Reactive N in the U.S.: Improving N Management in Crop Production
Presented to the EPA SAB Integrated N Committee on April 10, 2008 |
 | Phosphorus Nutrition of Soybean
Outline:
* P uptake by above-ground plant tissue
* Soybean root morphology
* P influx by roots
* Yields and soil test P levels
* P placement
* P timing
* P and soybean pests/diseases |
| Soil Testing for Phosphorus and Potassium
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 | Effective Nutrient Management Decisions...Looking Beyond the Next Harvest
Effective Nutrient Management Decisions ... Looking Beyond the Next Harvest" is a presentation made August 10, 2006 by Paul Fixen, PPI Senior Vice President, and Fernando Garcia, PPIC Southern Cone Director, at the annual congress of AAPRESID in Rosario, Argentina. The presentation focused on the importance of considering long-term effects of phosphorus and organic matter management decisions on the sustainability and profitability of cropping systems. Data from the Pampas of Argentina and the Corn Belt of the U.S. were used to illustrate that these regions share characteristics and challenges to long-term sustainability. AAPRESID is the Argentina No-till Association. |
 | Decision Support Systems in Integrated Crop Nutrient Management
Presented to The International Fertiliser Society at a conference in Cambridge, England, on December 15, 2005. The paper illustrated by the slide set argues that simultaneous improvement in productivity and nutrient use efficiency will require sound nutrient management decisions supported by tools capable of delivering relevant science to the farm. |
| What is the Value of Improving Phosphorus Efficiency?
Conceptually, the value of P products and management practices is tied to the contribution they make to efficiently accomplishing all the objectives of P use. |
 | Phosphorus Nutrition of Alfalfa
• U.S. alfalfa hay yields keep increasing
• Nutrient uptake and removal
• Alfalfa root development
• General P nutrition
• P boosts hay yield, recovery, and quality
• P inputs: frequency and source
• Requirement for balanced nutrition |
 | Potassium Nutrition of Alfalfa
Outline of the presentation:
1. Plant development
2. Diagnosis
3. Yield and quality
4. Economics
5. Irrigation and record yields
6. Cation competition
7. Balanced nutrition |
 | A New Fulcrum for Nutrient Management...Balancing on the Old Won't Do
During the seven decades of PPI’s existence, the science of nutrient management has greatly advanced and the priorities for research and education programs have shifted from a production focus to an environmental and production focus. The mantra of the times has become balancing productivity and environmental concerns. But … could it be that this concept of balance between production and environmental quality has outlived its relevancy? This was the question posed by Paul Fixen in this key note presentation given at the 2005 Western Nutrient Management Conference in Salt Lake City. |
 | Potassium Nutrition of Cotton
Outline of the presentation:
• U.S. cotton yields since 1975
• Growth and development of the cotton plant
• Nutrient uptake
• General K nutrition and response
• K placement and timing considerations
• Foliar application
• Conclusions |
 | Capitalizing on Multi-element Interactions through Balanced Nutrition
Presentation by Dr. Paul Fixen at the plenary session of the Third International Nitrogen Conference held in Nanjing, China. The conference had over 400 attendees from 40 countries. |
 | Potassium Nutrition in the Northern Great Plains
This presentation seeks to provide insight into the following major questions regarding K nutrition:
• The role of K in crop production
• How K exists in the soil and soil testing
• K uptake by plants
• K deficiency symptoms
• Crop responses to K where deficient
• Cl responses by crops
• Fertilizer K sources and use |
 | Research Challenges from and for High Yield Growers
Given at the International Conference on Precision Agriculture Minneapolis, MN, July 26, 2004. |
 | Sustainable Nutrient Use Efficiency In No-Till Systems
Sustainable Nutrient Use Efficiency in No-till Systems was the topic of a presentation given recently by Paul Fixen at the Winter Conference of No-till on the Plains held in Salina, Kansas. |
 | Chloride Research: What Have We Learned
Chloride (Cl) fertility research has been conducted for the past 50 years. We have a good understanding of the role of Cl in plants, soil sampling for Cl and how to ammend low Cl soils. However, the impact of crop cultivar and regional variation still produces some confusion when evaluating the opportunity for profitable responses to Cl. |
 | Does Chloride Deserve My Attention?
Chloride (Cl) fertilization deserves our attention under a number of specific conditions, including: where K fertilization is minimal, in non-costal regions where there is little aerial Cl fallout, where fungal disease pressure is high, where we are growing responsive crops, and where soil and plant analysis indicate low levels or unusually high levels of Cl. This presentation reviews past Cl research and recommendations and will help you to understand if Cl is something you should be considering as a Crop Adviser or grower. |
 | How Do We Manage Chloride?
Managing chloride (Cl) fertilizer requires careful attention to soil testing for Cl, critical levels in plant tissue analysis, selection of Cl fefrtilizer sources and application timing and method. Current research information provides us with good information on how to manage soil and plant Cl deficiencies. Further research would improve our understanding of how Cl impacts on plant disease suppression, and the ability to use soil testing to refine recommendations. |
| Phosphorus Nutrition of Canola
Phosphorus (P) fertilization is an important input for producing canola, the main oilseed crop grown in rotation on the Northern Great Plains of the U.S. and Canada. This PowerPoint presentation reviews the role of P in building canola yields, P uptake, soil testing, and fertilizer management approaches. Detailed background information and references are also included in the “speaker notes” section of each slide. The presentation is part of a series on nutrition of important crops and forages. |
 | Phosphorus Fertilizer Needs in North America
Solid science-based evidence indicates an increasing role for fertilizer P in North American agriculture. Delivered by Paul Fixen at the 18th Annual Regional Phosphate Conference in Lakeland, Florida on October 16,2003. |
 | Fertilizer Use Efficiency: The North American Experience
Fertilizer use efficiency is receiving increased attention today because of growing pressure for agriculture to minimize negative environmental
impacts. |
 | Phosphorus Nutrition of Wheat
Phosphorus (P) is one of the most vital nutrients needed in wheat production. Important questions related to P management for wheat are addressed in a useful PowerPoint presentation prepared by PPI/PPIC scientists. The presentation features more than 50 slides with accompanying notes and references. |
 | Opportunities for Managing Fertilizer Use
Fertilizer nitrogen (N) plays a crucial role in food production systems. With annual consumption between 80 and 90 million tons, commercial fertilizer N supplies basic food needs for at least 40% of the population (Smil, 2001). That population is expected to increase by 2 billion in the next 20 years (United Nations, 1998). It is estimated that at least 60% of humanity will eventually owe its nutritional survival to N fertilizer because of global population increase and increasing prosperity in developing countries. |
 | Nutrient Use Efficiency in No-Till Systems
This presentation was made at the annual conference of the South Dakota No-till Association on February 5, 2003. It reviews the fundamentals of nutrient use efficiency in no-till systems of the western Corn Belt with a focus on P and K. The presentation is organized around the “cornerstones” of nutrient use efficiency … balanced nutrition, sustainable nutrient budgets, and optimum placement and timing. |
 | Phosphorus Nutrition of Corn
Now is a good time to take a fresh look at phosphorus (P) nutrition considerations for corn. A new presentation on the PPI website looks at several key points: changes in root system development over the season, impacts on attainable yield potential, requirements through growth stages, placement options, soil test levels and corn response to P inputs, and profitability of P fertility management. Slides in this PowerPoint set include speaker notes and references. |
 | Phosphorus Nutrition of Cotton
This presentation discusses cotton growth and development, phosphorus uptake, and phosphorus fertility management. The slides include speaker notes and references and will be valuable reference material for this winter's meetings and other extension opportunities. |
 | Are We Managing for Higher Yields?
This presentation was given at a symposium entitled "Should We Strive for Higher Yields" which was part of the American Society of Agronomy Annual Meeting in Indianapolis, IN, November 10-14, 2002. It focuses on attainable corn yields by researchers and farmers, the practices used by Herman Warsaw and Francis Childs to get them, and research needs emerging from the use of these practices. It also evaluates current P and K management practices relative to those likely needed to narrow the gap between typical and attainable yields. |