In further support of 4R Nutrient Stewardship and its approach to implementing fertilizer best management practices, the International Plant Nutrition Institute (IPNI) has released a second version of its 4R Plant Nutrition Manual-one that is fully metric. This metric version is a follow-up to IPNI's initial release of the 4R Plant Nutrition Manual in March 2012, which was designed to fit a North American user through its predominant use of U.S. (Imperial) units.
The 4R Plant Nutrition Manual includes chapters on the scientific principles behind each of the four R's or "rights." It discusses adoption of 4R practices on the farm, approaches to nutrient management planning, and measurement of sustainability performance. The manual is intended to help the reader adapt and integrate the fundamental 4R principles into a comprehensive method of nutrient management that meets the criteria of sustainability.
Both versions of the 4R Plant Nutrition Manual are in the form of a +130 page wire-bound book (8½ x 11 in.). For details on ordering visit www.ipni.net/store or contact IPNI at circulation@ipni.net.