Employing certification to safeguard water supplies
Centner, Terence J.
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Contamination by animal manure has become a major issue in Georgia and our entire country. Due to concentrations of animals, excessive amounts of manure are being disposed of on land. Nitrogen and phosphorus from animal manure are impairing the quality of waters used by cities and municipalities for drinking purposes. The U.S. Environmental Protection Agency and the Georgia Environmental Protection Division have revised their water quality regulations governing concentrated animal feeding operations. This paper identifies strategies for encouraging the use of manure as a production input. The first involves agronomic rate applications for nitrogen and phosphorus. The second strategy involves directives that enhance the absorption of manure into the ground for use by crops. Lagoon design offers a third strategy by addressing nutrient losses through seepage or lagoon failure. Alternative uses for poultry litter offer the final strategy for avoiding excess nutrients from the application of manure.