Title:
N and P Edge-of-field Losses from Poultry Litter Applications
N and P Edge-of-field Losses from Poultry Litter Applications
Author(s)
Vervoort, R. W.
Radcliffe, David E.
Cabrera, Miguel L.
Latimore, M., Jr.
Radcliffe, David E.
Cabrera, Miguel L.
Latimore, M., Jr.
Advisor(s)
Editor(s)
Hatcher, Kathryn J.
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Abstract
Excess application of poultry litter may cause pollution of surface and ground water with Nitrogen (N) and Phosphorus (P). Composting poultry litter could reduce the risk of pollution by creating more stable organic components. Three rates of poultry litter and compost (10 Mg he litter, 20 Mg he litter and 10 Mg he litter combined with 50 Mg ha' compost) to three watersheds under pasture. The watersheds were monitored for surface and subsurface flow. Nitrate concentrations in subsurface flow did not exceed the U.S. Environmental Protection Agency drinking water standard of 10 mg Soluble P concentrations in runoff were high, reaching a maximum of 8.5 mg L4 under the compost treatment. Concentrations of P in soil in the top 15 cm increased dramatically under the compost treatment which creates a high potential for future runoff of P. Total losses of N and P were low, mainly due to few runoff and subsurface events.
Sponsor
Sponsored and Organized by: U.S. Geological Survey, Georgia Department of Natural Resources, The University of Georgia, Georgia State University, Georgia Institute of Technology
Date Issued
1997-03
Extent
Resource Type
Text
Resource Subtype
Proceedings