The Minnesota Phosphorus Index (MN P Index) is a model with the primary purpose of estimating P loss risk. A computerized version of the model is available at http://www.mnpi.umn.edu. The MN P Index is
used when a more accurate estimate is needed
(e.g., on sites with multiple risk factors), or to estimate P loss risk unrelated to manure applications (e.g., to identify P loss sites within a watershed). The MN P Index helps users identify and refine site-specific methods to reduce P loss by considering the interaction of a wide range of risk factors including landscape characteristics, cropping and tillage practices, and P application methods.
Lewandowski, A., Moncrief, J., and Drewitz, M. 2006. The Minnesota Phosphorus Index: Assessing Risk of Phosphorus Loss from Cropland. University of Minnesota Extension Service AG-BU-08423.
12 pages. Visit http://www.mnpi.umn.edu to learn more about the Minnesota Phosphorus Index, and to download a current version of the program.
The development of the Minnesota Phosphorus Index was a cooperative effort of the University of Minnesota (UM), Minnesota Department of Agriculture (MDA), Minnesota Pollution Control Agency (MPCA), and the Natural Resource Conservation Service (NRCS); with funding from the Minnesota Environmental Quality Board, University of Minnesota Extension Service, and the U.S. Environmental Protection Agency 319 grant
sponsored by the MDA.
Lewandowski, Ann; Moncrief, John; Drewitz, Matt.
The Minnesota Phosphorus Index: Assessing Risk of Phosphorus Loss from Cropland.
University of Minnesota Extension Service.
Retrieved from the University of Minnesota Digital Conservancy,
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