Lawlor, P. A., Helmers, M. J., Baker, J. L., Melvin, S. W., Lemke, D. W., , . 2011. Comparison of Liquid Swine Manure and Aqua-Ammonia Nitrogen Application Timing on Subsurface Drainage Water Quality in Iowa: Transactions of the ASABE. American Society of Agricultural and Biological Engineers, . 54, 3.

Agriculture, Analysis, Animal agriculture, Farms, Fertilizer, Groundwater, Nitrogen, Nutrient leaching, Nutrients, Water quality, Agricultural BMPs

This study evaluated the influence of seasonal nitrogen application as liquid swine manure and ammonia on the nutrient concentrations in subsurface leachate. The experiment was conducted over five years in experimental plots in Pocahontas County, Iowa (U.S.).