Using the 2010 Arkansas Phosphorus Index

This 14-pager from the Univ. of Arkansas Div. of Agriculture summarizes the Arkansas P Index, or API, adopted by the Arkansas Natural Resources Commission effective Jan. 1, 2010, which guides the preparation of nutrient management plans in watersheds that are “nutrient surplus areas.”  The API is also part of the nutrient management plans required by the Natural Resources Conservation Service for participation in most cost-share programs.  Any land application of manure in Arkansas generally requires a nutrient management plan and compliance with the API.  This API document covers diversion, fencing, field borders, filter strips, grassed waterways, ponds, riparian forest buffers, fences and herbaceaous cover, and terracing.

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