2008 Joint Annual Meeting (5-9 Oct. 2008): Effect of Sub-Surface Incorporation of Dry Poultry Litter on Nutrient Runoff from No-Till Soils.

538-12 Effect of Sub-Surface Incorporation of Dry Poultry Litter on Nutrient Runoff from No-Till Soils.



Monday, 6 October 2008
George R. Brown Convention Center, Exhibit Hall E
Leonard Kibet, Agriculture, Food & Resource Sciences, University of Maryland Eastern Shore, 1-Backbone Road, Princess Anne, MD 21853, Arthur Allen, University of Maryland Eastern Shore, Univ. of Maryland E. Shore, 30921 Martin Court/crop & Aquaculture, Princess Anne, MD 21853, Peter Kleinman, USDA-ARS, Pasture Research Lab, Builiding 3702 Curtin Road, University Park, PA 16802-3702, Daniel Pote, USDA-ARS, USDA-ARS, 6883 South Hwy. 23, Booneville, AR 72927, Gary Feyereisen, Building 3702, Curtin Road, USDA/ARS, Pasture Systems &Watershed Management Research Unit, University Park, PA 16802-3702 and T. Way, USDA-ARS National Soil Dynamics Lab., USDA-ARS, Auburn, AL 36832
Nutrient runoff from poultry litter amended soils is a primary concern on the Eastern Shore of Maryland, which abuts the eutrophic Chesapeake Bay estuary. We compared conventional methods of litter application (surface application with and without plowing) with the incorporation of litter using a novel technology developed by USDA-ARS to assess losses of N and P in runoff from no-till soils.  Lysimeters (60 x 60 x 60 cm) were collected from an Othello soil (fine-silty, mixed, active, mesic Typic Endoaquult) after litter was applied at a rate of approximately 0.8 Mg/ha. Lysimeters were subject to rainfall simulations to compare runoff associated with the alternative litter application methods. An assessment was made among runoff nitrogen, phosphorus and erosion. Results are expected to support the recommendation of improved manure management methods for water quality protection.