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Article: Nutrient management planning on four Virginia livestock farms: impacts on net income and nutrient losses.
- Article from:
- Journal of Soil and Water Conservation
- Article date:
- March 22, 1999
- Author:
CopyrightCOPYRIGHT 1999 Soil & Water Conservation Society. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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In the Chesapeake Bay, nutrient enrichment is one of three major water quality problems (U.S. EPA 1988). In the 1987 Chesapeake Bay Agreement, Virginia, Pennsylvania, Maryland, and the District of Columbia committed to a 40% reduction in the controllable loads of nitrogen and phosphorus entering the Chesapeake Bay (CBP 1987). Controllable loads include both point and nonpoint sources of pollution, with nonpoint sources encompassing pollutants from urban runoff, septic tanks, lawns, and agriculture. Because agriculture accounts for an estimated 39% of the nitrogen and 49% of the phosphorus entering the Bay (CBP 1987), water quality protection programs in the Bay watershed ...