Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/16165
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dc.contributor.authorBajgai, Yadunathen
dc.contributor.authorKristiansen, Paulen
dc.contributor.authorHulugalle, Nilanthaen
dc.contributor.authorMcHenry, Melindaen
dc.date.accessioned2014-11-27T14:21:00Z-
dc.date.issued2014-
dc.identifier.citationSoil Research, 52(3), p. 244-252en
dc.identifier.issn1838-6768en
dc.identifier.issn1838-675Xen
dc.identifier.urihttps://hdl.handle.net/1959.11/16165-
dc.description.abstractVegetable production systems rely on frequent tillage to prepare beds and manage weeds, thereby accelerating losses of soil organic carbon (SOC). They are also characterised by scant crop residue input. Residue incorporation and organic fertiliser application could counteract SOC loss due to tillage. We tested this hypothesis in a Chromosol and a Vertosol in northern NSW, Australia, where the effects of incorporating sweet corn ('Zea mays' L. var. 'rugosa') residue in soil in a corn-cabbage ('Brassica oleracea' L.) rotation under either organic or conventional system on soil C fractions were studied during two rotation cycles (2 years). A laboratory experiment was conducted to isolate the effect of tillage on the soil organic matter (SOM) fractions, because both the residue-incorporated and without-residue treatments for organic systems received tillage for weed control in the field, whereas conventional systems did not. Residue incorporation increased particulate OC (POC) by 32% in the field experiment and 48% in the laboratory experiment, whereas dissolved OC was increased only in the organic system. Concentrations of mineral-associated OC (MOC) and total OC (TOC) were increased by residue incorporation in both field and laboratory experiments. Simulated tillage had a limited effect on POC, MOC and TOC, suggesting that cultivation for weed control may have only a minor effect on short-term SOM mineralisation rates. In both experiments, MOC accounted for ≤83% in the Vertosol and ≤73% in the Chromosol. Due to frequent tillage in vegetable production systems, physicochemical stabilisation of C predominates over protection through aggregation.en
dc.languageenen
dc.publisherCSIRO Publishingen
dc.relation.ispartofSoil Researchen
dc.titleChanges in soil carbon fractions due to incorporating corn residues in organic and conventional vegetable farming systemsen
dc.typeJournal Articleen
dc.identifier.doi10.1071/SR13295en
dc.subject.keywordsCarbon Sequestration Scienceen
dc.subject.keywordsSustainable Agricultural Developmenten
local.contributor.firstnameYadunathen
local.contributor.firstnamePaulen
local.contributor.firstnameNilanthaen
local.contributor.firstnameMelindaen
local.subject.for2008070108 Sustainable Agricultural Developmenten
local.subject.for2008050301 Carbon Sequestration Scienceen
local.subject.seo2008961402 Farmland, Arable Cropland and Permanent Cropland Soilsen
local.subject.seo2008829899 Environmentally Sustainable Plant Production not elsewhere classifieden
local.profile.schoolSchool of Environmental and Rural Scienceen
local.profile.emailybajgai@gmail.comen
local.profile.emailpkristi2@une.edu.auen
local.profile.emailNilantha.Hulugalle@industry.nsw.gov.auen
local.profile.emailm.mchenry@cqu.edu.auen
local.output.categoryC1en
local.record.placeauen
local.record.institutionUniversity of New Englanden
local.identifier.epublicationsrecordune-20141126-004037en
local.publisher.placeAustraliaen
local.format.startpage244en
local.format.endpage252en
local.identifier.scopusid84898450787en
local.peerreviewedYesen
local.identifier.volume52en
local.identifier.issue3en
local.contributor.lastnameBajgaien
local.contributor.lastnameKristiansenen
local.contributor.lastnameHulugalleen
local.contributor.lastnameMcHenryen
dc.identifier.staffune-id:ybajgaien
dc.identifier.staffune-id:pkristi2en
local.profile.orcid0000-0003-2116-0663en
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.identifier.unepublicationidune:16402en
local.identifier.handlehttps://hdl.handle.net/1959.11/16165en
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
local.title.maintitleChanges in soil carbon fractions due to incorporating corn residues in organic and conventional vegetable farming systemsen
local.output.categorydescriptionC1 Refereed Article in a Scholarly Journalen
local.search.authorBajgai, Yadunathen
local.search.authorKristiansen, Paulen
local.search.authorHulugalle, Nilanthaen
local.search.authorMcHenry, Melindaen
local.uneassociationUnknownen
local.year.published2014en
local.subject.for2020300210 Sustainable agricultural developmenten
local.subject.for2020410101 Carbon sequestration scienceen
local.subject.seo2020180605 Soilsen
Appears in Collections:Journal Article
School of Environmental and Rural Science
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