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Phosphorus Site Index
The nutrient management regulations identify the Phosphorus Site Index (P-index) as the primary tool to be used for evaluating the potential risk for phosphorus movement from agricultural land to state waters. It is used when soil fertility index values are greater than 150 to determine the limiting nutrient and identify required management as delineated by COMAR 15.20.08.04E(3). Definition
The Phosphorus Site Index is a tool that can be used to evaluate the potential P soil losses as they relate to certain site characteristics and management practices. This tool provides nutrient management planners and farmers with a method to evaluate their fields and to make management decisions based on the values obtained from the P-index. How to Use the P-Index
GO TO "The Maryland Phosphorus Site Index Technical User's Guide" Site.
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