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Impact of Surface Application of Flue Gas Desulfurization Gypusum on Infiltration, Phophorus Behavior, and Total Sulfur in a Previously Manured Coastal Plain Soil

dc.contributor.advisorFelton, Gary Ken_US
dc.contributor.authorCollins, Lorettaen_US
dc.date.accessioned2015-02-05T06:44:36Z
dc.date.available2015-02-05T06:44:36Z
dc.date.issued2014en_US
dc.identifierhttps://doi.org/10.13016/M2BP5J
dc.identifier.urihttp://hdl.handle.net/1903/16127
dc.description.abstractFlue gas desulfurization (FGD) gypsum was surface-applied on a poorly drained cultivated Coastal Plain soil in Maryland containing excessive amounts of plant-available phosphorus (P). Using a constant head double-ring infiltrometer, a field experiment indicated a slight increase in final infiltration rate (FIR) at 10 and 15 Mg ha-1 application rates, however a laboratory rainfall simulation showed no significant effect of FGD gypsum on FIR. Water extractable phosphorus (WEP) decreased by 13-47% one year after application of FGD gypsum. Linear relationships were established between Mehlich 3 (M3) and ammonium oxalate extractions of P and aluminum (Al) (r2 = 0.83, 0.56, respectively), supporting previous research on the reliability of M3 in place of ammonium oxalate to predict P loss. One year after FGD gypsum application total S was 3-150% higher at 15 cm and 44-74% higher at 30 cm depths. No significant difference in total S was apparent at deeper depths.en_US
dc.language.isoenen_US
dc.titleImpact of Surface Application of Flue Gas Desulfurization Gypusum on Infiltration, Phophorus Behavior, and Total Sulfur in a Previously Manured Coastal Plain Soilen_US
dc.typeThesisen_US
dc.contributor.publisherDigital Repository at the University of Marylanden_US
dc.contributor.publisherUniversity of Maryland (College Park, Md.)en_US
dc.contributor.departmentEnvironmental Science and Technologyen_US
dc.subject.pqcontrolledNatural resource managementen_US
dc.subject.pqcontrolledEnvironmental scienceen_US
dc.subject.pqcontrolledSoil sciencesen_US
dc.subject.pquncontrolledFGD gypsumen_US
dc.subject.pquncontrolledInfiltrationen_US
dc.subject.pquncontrolledWater Extractable Phosphorusen_US


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