4R Plant Nutrition Manual
A Manual for Improving the Management of Plant Nutrition
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4R Nutrient Stewardship is a new innovative approach for fertilizer best management practices adopted by the world’s fertilizer industry. The concept is simple—apply the right source of nutrient, at the right rate, at the right time, and in the right place—but the implementation is knowledge-intensive and site-specific.
What's New in Version 2.1
- updated figures