Long-term effects of copper rich swine manure application on continuous corn production

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dc.contributor.authorAnderson, Martha Annen
dc.contributor.committeecochairMartens, David C.en
dc.contributor.committeecochairMcKenna, James R.en
dc.contributor.committeememberDonohue, Stephen J.en
dc.contributor.departmentCrop and Soil Environmental Sciencesen
dc.date.accessioned2014-03-14T21:48:44Zen
dc.date.adate2008-11-01en
dc.date.available2014-03-14T21:48:44Zen
dc.date.issued1990-12-17en
dc.date.rdate2008-11-01en
dc.date.sdate2008-11-01en
dc.description.abstractThree long-term field experiments were established in the spring of 1978 and continued through 1988 to evaluate corn (Zea <i>mays</i> L.) response to high Cu levels from Cu rich swine manure and CuS0₄ applications. The field research was conducted on soils with diverse properties, i.e., on a Bertie fine sandy loam (Aquic Hapludults), a Guernsey silt loam (Aquic Hapludalfs), and a Starr-Dyke clay loam (Fluventic DystrochreptsTypic Rhodudults). Three treatments in the long-term field experiments on the three soils were a control, annual applications of eu as eu rich swine manure, and annual applications of Cu as CuS0₄ equivalent to that in the manure. After the 11 years, 1109 mt ha⁻¹ of wet Cu rich swine manure were applied for the manure treatment. The Cu rich manure contained an average of 1316 mg Cu kg⁻¹, An average of 325 kg Cu ha⁻¹ added to the soils from the manure application over the 11 years exceeded U.S.E.P.A. guidelines for safe copper loading levels for cropland by 45 kg ha⁻¹. Copper concentrations in corn ear leaves were within the normal range of 3 to 20 mg kg⁻¹ where the 325 kg Cu ha⁻¹ were applied to the soil as either Cu rich manure or CuS0₄. Concentrations of Cu in the grain were also in the normal range of 1 to 5 mg kg⁻¹ where the high level of the two Cu sources was applied to soils. There was no decrease in corn yield on the three soils from application of either Cu source.en
dc.description.degreeMaster of Scienceen
dc.format.extentvii, 60 leavesen
dc.format.mediumBTDen
dc.format.mimetypeapplication/pdfen
dc.identifier.otheretd-11012008-063542en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-11012008-063542/en
dc.identifier.urihttp://hdl.handle.net/10919/45416en
dc.language.isoenen
dc.publisherVirginia Techen
dc.relation.haspartLD5655.V855_1990.A643.pdfen
dc.relation.isformatofOCLC# 23810395en
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subject.lccLD5655.V855 1990.A643en
dc.subject.lcshCornen
dc.subject.lcshManures -- Researchen
dc.titleLong-term effects of copper rich swine manure application on continuous corn productionen
dc.typeThesisen
dc.type.dcmitypeTexten
thesis.degree.disciplineCrop and Soil Environmental Sciencesen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.levelmastersen
thesis.degree.nameMaster of Scienceen

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