The 4R Research Network is composed of up to 10 leading Canadian researchers who will qualify economic, social, and environmental benefits resulting from advanced fertilizer management systems under 4R Nutrient Stewardship(Right Source @ Right Rate, Right Time, Right Place). The project will emphasize collaboration with university researchers, professional advisors, provincial agriculture departments, and Agriculture and Agri-Food Canada researchers.
The research covers many areas of environmental focus including reducing greenhouse gas and ammonia emissions, losses of phosphorus to surface waters, and nitrate leaching in groundwater. Activities, including field trials, cover key field crops across Canada and were selected to overcome gaps in adoption, such as: lack of best management practices (BMPs), evaluation of multiple nutrient loss pathways of nitrogen and phosphorus, evaluation of BMPs under the diverse soils, weather, cropping systems in Canada, and decision-making tools for tailoring BMPs to local needs and conditions.
The 4R Nutrient Stewardship framework delivers Canadian growers the information they need to enhance competitiveness and increase productivity and adaptability to market needs while addressing the sustainable intensification of agriculture. The result will be science-based data that demonstrates, through agronomic research, the benefits of the 4Rs for improved farmer decisions on economics, feeding the world, and protecting the environment.
This research initiative will serve to strengthen the science behind 4R Nutrient Stewardship principles in a way which will be profitable for farmers, meet society’s need for increased food production, and improve the environmental performance of farming practices.
4R Management of Phosphorus Fertilizer in the Northern Great Plains: A Review of the Scientific Literature
- 4R Management of Phosphorus Fertilizer in the Northern Great Plains – Detailed Version
- 4R Management of Phosphorus Fertilizer in the Northern Great Plains – summary
- Introductory Material
- Chapter 1 Background of 4R Nutrient Stewardship
- Chapter 2 Role of P in Crop Production
- Chapter 3 P Behaviour in the Soil Chapter
- Chapter 4 Environmental and Sustainability Concerns Related to P Fertilizer
- Chapter 5 P Fertilizer Rates
- Chapter 6 P Fertilizer Sources, Additives, and Microbial Products
- Chapter 7 P Fertilizer Placement
- Chapter 8 P Fertilizer Timing
- Chapter 9 Creating a Cohesive 4R Management Package for P Fertilization
- 2010-2013 Science Cluster Summary Report
- Determining Manitoba-based reduction modifiers for the Nitrous Oxide Emission Reduction Program (NERP)
- Magnitude and significance of the N2O priming effect associated with long-term applications of manure
- Nutrient Supply and GHG Emissions from a S-deficient Soil as a Function of Fertilization History
- Nitrous oxide emissions from corn as affected by timing and rate of nitrogen fertilizer application
- 2014 4R Research Fund Report