Cheryl Carmona1, Joshua McGrath1, and James Thomas Sims2. (1) 0214 H.J. Patterson Hall, Bldg. 073, University of Maryland, University of Maryland, Dept. of Environmental Science & Technology, College Park, MD 20742-5825, (2) 531 S. College Avenue, University of Delaware, University of Delaware, Department of Plant & Soil Sciences, Newark, DE 19717-1303
Surpluses of manure nutrients on the Delmarva Peninsula have led to soils with elevated phosphorus (P) concentrations and groundwater with high nitrate-nitrogen concentrations. Relocation of manures from the farms with nutrient surpluses to farms that require additional nutrients for crop production is widely recognized as necessary to alleviate the environmental concerns associated with intensive livestock production. An innovative solution that has been adopted on the Delmarva Peninsula, one of the most concentrated poultry producing areas in the U.S., is transport of excess broiler litter from poultry farms to a regional pelletizing plant where it is converted into an organic fertilizer that can be transported by rail and truck to other regions. We will present results from lab and field studies evaluating pellitized poultry litter as a fertility amendment.