Managing nutrients as a system – 4R Nutrient Stewardship

October 22, 2020

Organized in collaboration with

The Fertilizer Institute




Sally Flis – Senior Director, Agronomy, The Fertilizer Institute

Alison Eagle – Sustainable Agriculture Program Scientist, the Environmental Defense Fund

William Frame – Associate Professor, Virginia Tech


Managing nutrients is a key part of an agronomic system. 4R Nutrient Stewardship provides a framework to achieve cropping system goals, such as increased production, increased farmer profitability, enhanced environmental protection and improved sustainability. To achieve those goals, the 4R concept incorporates the Right fertilizer source at the Right rate, at the Right time and in the Right place. This session will cover some recent research on how the movement of nutrients in the cropping system is impacted by 4R practices in corn grain and cotton systems and information on the economic and environmental performance of the practices when farmers use them in the field.

Useful links:
Coordinated Site Network for Studying the Impacts of 4R Nutrient Management on Crop Production and Nutrient Loss
An Integrated Approach for Nitrogen Management In Upland Cotton Across The U.S. Cotton Belt