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
To learn more visit: http://www.nutrientstewardship.com/4rs/4r-principles/
Download the 4R poster: