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dc.contributor.authorPacenka, Stevenen_US
dc.date.accessioned2013-01-31T19:46:46Z
dc.date.available2013-01-31T19:46:46Z
dc.date.issued2012-08-20en_US
dc.identifier.otherbibid: 7959921
dc.identifier.urihttps://hdl.handle.net/1813/31236
dc.description.abstractMany Northeastern US dairy farms have surplus nutrients because of imported feed. The surplus accumulates in the soil and might affect water quality. Excess phosphorus is most problematic and has caused algal blooms in the drinking water supplies for New York City (NYC). NYC provides funding for reducing P losses from farms to water. This study assessed the effectiveness of this program in controlling P accumulation in soils. Over 1200 field soil sample series at least six years long with sampling at three year intervals were analyzed. The results indicate increasing Morgan's P in initially low P soils that is counterbalanced by decreasing Morgan's P in initially higher P soils. The breakpoint is around 12 kg P/ha. Regression analysis found increased Morgan's P concentration with: corn frequency, higher recommended manure rate, and higher aluminum; and a negative effect of soil wetness. The soil status indicates that NYC watershed farmers have taken heed of nutrient management recommendations and supporting Best Management Practices.en_US
dc.language.isoen_USen_US
dc.subjectsoil phosphorusen_US
dc.subjectwatershed managementen_US
dc.titleCan Soil Test Phosphorus Track Phosphorus Changes For Water Quality Management?en_US
dc.typedissertation or thesisen_US
thesis.degree.disciplineCivil and Environmental Engineering
thesis.degree.grantorCornell Universityen_US
thesis.degree.levelMaster of Science
thesis.degree.nameM.S., Civil and Environmental Engineering
dc.contributor.chairStedinger, Jery Russellen_US
dc.contributor.committeeMemberSteenhuis, Tammo Sen_US


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