Robynne Anderson's Emerging Thoughts on Ag

4R Nutrient Stewardship

Agriculture is under continual pressure and incentive to improve its use of resources. For two decades the fertilizer sector has been promoting ways to make sure the right amount of fertilizer gets used by applying the 4Rs – Right source, Right rate, Right time and Right place.

The International Fertilizer Industry Association recently released this neat infographic that illustrated these four principles to help promote their 4R Nutrient Stewardship Policy Toolkit (PDF, 1.5MB).

4R Principles of Nutrient Stewardship

4R Principles of Nutrient Stewardship