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Agricultural phosphorus and eutrophication
- Sharpley, Andrew N. and United States Agricultural Research Service.
- ARS (Series) (United States. Agricultural Research Service) ; 149 2003
- Phosphatic fertilizers -- Environmental aspects -- United States, Eutrophication -- United States, phosphorus fertilizers, eutrophication, and United States
- U.S. Dept. of Agriculture, Agricultural Research Service
- USDA publications