Metson, Geneviève S Phosphorus is a key component of the resource demands for meat, eggs, and dairy production in the United States. [electronic resource] - Proceedings of the National Academy of Sciences of the United States of America Nov 2014 - E4906-7 p. digital Publication Type: Letter; Comment ISSN: 1091-6490 Standard No.: 10.1073/pnas.1417759111 doi Subjects--Topical Terms: Agricultural IrrigationAnimalsDairyingEggs--analysisGases--analysisGreenhouse EffectMeat--analysisNitrogen--analysis