Presented at the 5th Sustainable Phosphorus Summit in Kunming, China on 18 August 2016
IPNI Webinar presented on 11 May 2016
Presentations and publications on practices to reduce phosphorus losses from agriculture.
The crop nutrient balance--the comparison of nutrients applied in relation those removed by crops--is an important indicator of the sustainability performance of crop production. Deficits in the nutrient balance can limit crop yields and deplete soil fertility, and surpluses can cause economic waste
One-page news articles on current nutrient stewardship issues.
Materials developed by IPNI and other cooperators on 4Rs
Right Source, Right Rate, Right Time, Right Place
About the Phosphorus Program
Regional Profile (Eastern Canada, Northeast United States)
The region has many areas with a large ratio of livestock to cropland area, leading to challenges of localized nutrient surpluses associated with managing manure as a source of plant nutrients.
Phosphorus Program Director
Tom Bruulsema has played key roles in the development of the 4R Nutrient Stewardship concept, including the co-editing of the IPNI 4R Plant Nutrition Manual. Based in Guelph, Ontario, Canada, he has led research and education programs for the Institute in Eastern Canada and the Northeastern USA since 1995. Dr. Bruulsema has been recognized as a Fellow of the American Society of Agronomy, the Soil Science Society of America, and the Canadian Society of Agronomy. Currently, he is developing the Institute's Phosphorus Program, focusing on phosphorus management for sustainable agricultural production.