TY - JOUR T1 - Phosphorus-based management challenges and strategies for poultry farming JF - Journal of Soil and Water Conservation SP - 150A LP - 150A VL - 62 IS - 6 AU - Andrew N. Sharpley AU - Sheri Herron AU - Tommy Daniel Y1 - 2007/11/01 UR - http://www.jswconline.org/content/62/6/150A.abstract N2 - Continued accelerated eutrophication of fresh waters caused by elevated phosphorus inputs places pressure on agriculture to implement phosphorus-based nutrient management strategies, particularly for confined animal feeding operations. As phosphorus-based strategies usually have a negative impact on farm economics, current challenges are to define where and how much of a problem exists, how to implement and maintain effective conservation practices (CPs), and what are the best incentives for farmer adoption. These challenges need to be overcome to develop equitable solutions within watersheds where multiple land and water resource users often have conflicting needs and perceptions. Because poultry operations generally have a higher confined animal density (3.23 animal units ha−1 [1.31 units ac−1]) than either dairy (0.89 animal units ha−1 [0.36 units ac−1) or swine operations (0.77 animal units ha−1 [0.31 units ac−1]) and greater (two- to fourfold) concentration of phosphorus in poultry manure than other livestock types, phosphorus-based management is especially challenging for poultry growers. The short-term impacts of land-applying poultry litter on phosphorus loss can be successfully mitigated with adoption of phosphorus-based CPs. These include management of feed (enzymes, crop hybrids), manure … ER -