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Influence of Soil and Manure Management Practices on Surface Runoff Phosphorus and Nitrogen Loss in a Corn Silage Production System: A Paired Watershed Approach

1
USDA-ARS, Institute for Environmentally Integrated Dairy Management, 2615 Yellowstone Dr., Marshfield, WI 54449, USA
2
USDA-ARS, Dairy Forage Research Center, 1925 Linden Dr., Madison, WI 53706, USA
3
Marshfield Agricultural Research Station, University of Wisconsin, M605 Drake Ave., Stratford, WI 54484, USA
*
Author to whom correspondence should be addressed.
Received: 14 November 2020 / Revised: 16 December 2020 / Accepted: 24 December 2020 / Published: 29 December 2020
Best management practices (BMPs) can mitigate erosion and nutrient runoff. We evaluated runoff losses for silage corn management systems using paired watershed fields in central Wisconsin. A two-year calibration period of fall-applied liquid dairy manure incorporated with chisel plow tillage (FMT) was followed by a three and a half-year treatment period. During the treatment period FMT was continued on one field, and three different systems on the others: (a) fall-applied manure and chisel tillage plus a vegetative buffer strip (BFMT); (b) a fall rye cover crop with spring manure application and chisel tillage (RSMT), both BMPs; a common system (c) fall manure application with spring chisel tillage (FMST). Year-round runoff monitoring included flow, suspended sediment (SS), total phosphorus (TP), dissolved reactive phosphorus (DRP), ammonium (NH4+-N), nitrate, and total nitrogen (TN). Results showed BFMT reduced runoff SS, TP, and TN concentration and load compared to FMT. The RSMT system reduced concentrations of SS, TP, and TN, but not load because of increased runoff. The FMST practice increased TP, DRP, and NH4+-N loads by 39, 376, and 197%, respectively. While BMPs showed mitigation potential for SS, TN, and TP, none controlled DRP, suggesting additional practices may be needed in manured corn silage fields with high runoff potential. View Full-Text
Keywords: best management practices; corn silage; erosion; nutrient management; liquid manure; surface runoff; water quality best management practices; corn silage; erosion; nutrient management; liquid manure; surface runoff; water quality
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MDPI and ACS Style

Sherman, J.F.; Young, E.O.; Jokela, W.E.; Casler, M.D.; Coblentz, W.K.; Cavadini, J. Influence of Soil and Manure Management Practices on Surface Runoff Phosphorus and Nitrogen Loss in a Corn Silage Production System: A Paired Watershed Approach. Soil Syst. 2021, 5, 1. https://0-doi-org.brum.beds.ac.uk/10.3390/soilsystems5010001

AMA Style

Sherman JF, Young EO, Jokela WE, Casler MD, Coblentz WK, Cavadini J. Influence of Soil and Manure Management Practices on Surface Runoff Phosphorus and Nitrogen Loss in a Corn Silage Production System: A Paired Watershed Approach. Soil Systems. 2021; 5(1):1. https://0-doi-org.brum.beds.ac.uk/10.3390/soilsystems5010001

Chicago/Turabian Style

Sherman, Jessica F., Eric O. Young, William E. Jokela, Michael D. Casler, Wayne K. Coblentz, and Jason Cavadini. 2021. "Influence of Soil and Manure Management Practices on Surface Runoff Phosphorus and Nitrogen Loss in a Corn Silage Production System: A Paired Watershed Approach" Soil Systems 5, no. 1: 1. https://0-doi-org.brum.beds.ac.uk/10.3390/soilsystems5010001

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