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dc.contributor.authorHenderson, Russell Dean
dc.date.accessioned2014-03-04T19:59:14Z
dc.date.available2014-03-04T19:59:14Z
dc.date.issued2011-05
dc.identifier.otherhenderson_russell_d_201105_ms
dc.identifier.urihttp://purl.galileo.usg.edu/uga_etd/henderson_russell_d_201105_ms
dc.identifier.urihttp://hdl.handle.net/10724/27156
dc.description.abstractManaging P loss from poultry litter amended pastures has regional importance to the health of sensitive ecosystems. Typical sampling methodology considers that which passes through a 0.45 μm filter as “dissolved” P but many P sorbing particles that behave differently than truly dissolved aquo-ions are <0.45 μm and this misclassification may cause errors in predictive models. We assessed the contribution of colloid and nanoparticle-bound P (nPP; 1 nm – 415 nm) to P released from these soils after oxic, anoxic, and pH adjusted laboratory incubations and to runoff P in fescue watersheds that typically received bi-annual poultry litter applications since 1995. Soil incubations indicated anoxic conditions in seasonally saturated fields were potentially a major source of generating nPP in solution. An average of 10% of <0.415 μm runoff P was present as nPP. Understanding conditions responsible for P loss in agricultural systems and the forms of this P may lead to preventing such loss.
dc.languageeng
dc.publisheruga
dc.rightspublic
dc.subjectphosphorus
dc.subjectpoultry litter
dc.subjectnanoparticles
dc.subjectrunoff
dc.subjectanoxic
dc.titleNanoparticle-facilitated transport of phosphorus in poultry-litter amended grassland
dc.typeThesis
dc.description.degreeMS
dc.description.departmentCrop and Soil Sciences
dc.description.majorCrop and Soil Sciences
dc.description.advisorAaron Thompson
dc.description.committeeAaron Thompson
dc.description.committeeWilliam P. Miller
dc.description.committeeMiguel L. Cabrera


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