The core concept of 4R Nutrient Stewardship is applying the right source of plant nutrients, at the right rate, right time, and in the right place.


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Shared partnerships like the Nutrients Solution project brings together customized nutrient recommendations, enhanced extension services, and support to farm retail services to help farmers make the best nutrient management decisions.



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A 4R Nutrient Stewardship watershed study at the Kansas Agricultural Watershed Field Laboratory near Manhattan, KS has been established to determine how interactions between cover crops and phosphorus (P) fertilizer management impact P loss, P use efficiency, crop yield, and net returns.