4Rs and Fertilizer Best Management Practices
The goal of fertilizer best management practices is to match nutrient supply with crop requirements to optimize yield while minimizing nutrient losses to the environment.
The four areas of nutrient management (source, rate, time and place) provide the basis of “nutrient stewardship,” a science-based framework for the efficient and effective use of plant nutrients.
4r nutrient stewardship.
Matches fertilizer type to crop needs.
Matches amount of fertilizer to crop needs.
Makes nutrients available when crops need them
Keeps nutrients where crops can use them.