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4Rs and Fertilizer Best Management Practices

key priorities

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.

4Rs Right source

Right source.

Matches fertilizer type to crop needs.

4Rs Right time

Right time.

Matches amount of fertilizer to crop needs.

4Rs Right rate

Right rate.

Makes nutrients available when crops need them

4Rs Right place

Right place.

Keeps nutrients where crops can use them.