Northeast Research and Demonstration Farm
Nonpoint source nutrient pollution related to land application of manures is recognized as an important environmental and social issue for several reasons. First,swine manure application to land can impact water quality. Second, several states are in the process of creating laws and/or regulations to reduce nitrogen and phosphorus loadings from manure to soil and water resources. Third, the quality of water resources will help set parameters for developing public policies on management of manure.
Iowa State University
Kanwar, Rameshwar S.; Pederson, Carl H.; Helmers, Matthew J.; Sawyer, John E.; and Mallarino, Antonio P., "Impact of Swine Manure Application on Water Quality" (2007). Iowa State Research Farm Progress Reports. 917.