Phosphorus-reducing technologies in swine production
Date
2010-02-19T22:42:47Z
Journal Title
Journal ISSN
Volume Title
Publisher
Kansas State University. Agricultural Experiment Station and Cooperative Extension Service
Abstract
Soil phosphorus levels have increased as swine production has become concentrated. Phosphorus-based manure management regulations for land application have been proposed by policy makers. The objective of this research was to determine benefits/costs of adopting phytase for reducing phosphorus. Results were derived using different manure storage and application systems. Although phytase was a least-cost ingredient, it became profitable when producers were constrained by land. Land requirements were 2 to 5 times greater under a phosphorus application regulation than a nitrogen application regulation.
Description
Keywords
Swine, Management, Manure, Nitrogen, Phosphorus, Phytase