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Updating nitrogen and phosphorus credits from manure to maximize fertilizer use efficiency in row crops

Study author(s): Melissa L. Wilson, University of Minnesota, Department of Soil, Water, and Climate
Years of study: 2018-2022
Location(s): Waseca, MN and Lamberton, MN

Important: for the complete report, including all tables and figures, please download using the links to the right.

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The main goal of this project is to determine if the University of Minnesota’s current recommendations for manure N and P credits are still applicable. Our data showed that we may need to make adjustments to beef bedded pack and possibly dairy manure, but the last year of the experiment is needed to round out our dataset. In the end, if we are able to provide better recommendations for manure use, then farmers will be able to better maximize their commercial fertilizer purchases, increasing profitability.

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