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https://hdl.handle.net/1959.11/17394
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DC Field | Value | Language |
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dc.contributor.author | Bajgai, Yadunath | en |
dc.contributor.author | Kristiansen, Paul | en |
dc.contributor.author | Hulugalle, Nilantha | en |
dc.contributor.author | McHenry, Melinda | en |
local.source.editor | Editor(s): I Yunusa | en |
dc.date.accessioned | 2015-05-25T13:57:00Z | - |
dc.date.issued | 2012 | - |
dc.identifier.citation | Capturing Opportunities and Overcoming Obstacles in Australian Agronomy: Proceedings of 16th Australian Agronomy Conference, p. 1-4 | en |
dc.identifier.uri | https://hdl.handle.net/1959.11/17394 | - |
dc.description.abstract | Vegetable production systems rely on frequent tillage to prepare beds and manage weeds. These cultivations disrupt soil aggregates leading to a loss of soil organic carbon (SOC) and decline productivity. Crop residue incorporation could be a way to counteract such negative impacts. This hypothesis was examined using two contrasting soils, a Vertosol and a Chromosol, sweet corn ('Zea mays' var. 'rugosa' L.) residue either incorporated or not and soils sieved/disturbed or not to simulate tillage in an incubation experiment. The treated soils were dispersed and fractionated to determine concentrations of particulate organic carbon (POC) and mineral-associated organic carbon (MOC). POC and MOC were affected by soil type and residue incorporation but not by simulated tillage. Vertosol and '+' residue had significantly higher POC and MOC. On average, the POC and MOC accounted for 23% and 77% of total organic carbon (TOC) for Chromosol and 17% and 83% of TOC for Vertosol, respectively. The limited effect of simulated tillage is possibly due to low intensity and frequency of sieving. The residue amended soils had 15% and 10% higher TOC for Chromosol and Vertosol, respectively. Residue incorporation could help improve SOC in the intensively cultivated vegetable soils. The mineral-associated fraction has a greater SOC stabilising capacity in clayey Vertosols than in sandy Chromosols due to the sorption mechanism of carbon particles on organo-mineral surfaces. Sorption of carbon particles on organo-mineral surfaces may be responsible for the increased MOC in residue amended treatments. | en |
dc.language | en | en |
dc.publisher | Australian Society of Agronomy Inc | en |
dc.relation.ispartof | Capturing Opportunities and Overcoming Obstacles in Australian Agronomy: Proceedings of 16th Australian Agronomy Conference | en |
dc.title | Particulate and mineral-associated organic carbon fractions as influenced by corn residue incorporation and simulated tillage | en |
dc.type | Conference Publication | en |
dc.relation.conference | AAC 2012: 16th Australian Agronomy Conference | en |
dcterms.accessRights | Bronze | en |
dc.subject.keywords | Carbon Sequestration Science | en |
dc.subject.keywords | Sustainable Agricultural Development | en |
local.contributor.firstname | Yadunath | en |
local.contributor.firstname | Paul | en |
local.contributor.firstname | Nilantha | en |
local.contributor.firstname | Melinda | en |
local.subject.for2008 | 070108 Sustainable Agricultural Development | en |
local.subject.for2008 | 050301 Carbon Sequestration Science | en |
local.subject.seo2008 | 961402 Farmland, Arable Cropland and Permanent Cropland Soils | en |
local.subject.seo2008 | 829899 Environmentally Sustainable Plant Production not elsewhere classified | en |
local.profile.school | School of Environmental and Rural Science | en |
local.profile.email | ybajgai@myune.edu.au | en |
local.profile.email | pkristi2@une.edu.au | en |
local.output.category | E1 | en |
local.record.place | au | en |
local.record.institution | University of New England | en |
local.identifier.epublicationsrecord | une-20141126-215526 | en |
local.date.conference | 14th - 18th October, 2012 | en |
local.conference.place | Armidale, Australia | en |
local.publisher.place | Armidale, Australia | en |
local.format.startpage | 1 | en |
local.format.endpage | 4 | en |
local.url.open | https://www.agronomyaustraliaproceedings.org/images/sampledata/2012/8063_4_bajgai.pdf | en |
local.peerreviewed | Yes | en |
local.access.fulltext | Yes | en |
local.contributor.lastname | Bajgai | en |
local.contributor.lastname | Kristiansen | en |
local.contributor.lastname | Hulugalle | en |
local.contributor.lastname | McHenry | en |
dc.identifier.staff | une-id:ybajgai | en |
dc.identifier.staff | une-id:pkristi2 | en |
local.profile.orcid | 0000-0003-2116-0663 | en |
local.profile.role | author | en |
local.profile.role | author | en |
local.profile.role | author | en |
local.profile.role | author | en |
local.identifier.unepublicationid | une:17608 | en |
dc.identifier.academiclevel | Academic | en |
dc.identifier.academiclevel | Academic | en |
dc.identifier.academiclevel | Academic | en |
dc.identifier.academiclevel | Academic | en |
local.title.maintitle | Particulate and mineral-associated organic carbon fractions as influenced by corn residue incorporation and simulated tillage | en |
local.output.categorydescription | E1 Refereed Scholarly Conference Publication | en |
local.relation.url | http://www.regional.org.au/au/asa/2012/climate-change/8063_bajgaiy.htm | en |
local.relation.url | https://www.agronomyaustraliaproceedings.org/index.php/hydrogen/10-2012/307-2012-climate-change | en |
local.conference.details | AAC 2012: 16th Australian Agronomy Conference, Armidale, Australia, 14th - 18th October, 2012 | en |
local.search.author | Bajgai, Yadunath | en |
local.search.author | Kristiansen, Paul | en |
local.search.author | Hulugalle, Nilantha | en |
local.search.author | McHenry, Melinda | en |
local.uneassociation | Unknown | en |
local.atsiresearch | No | en |
local.conference.venue | University of New England | en |
local.sensitive.cultural | No | en |
local.year.published | 2012 | en |
local.fileurl.closedpublished | https://rune.une.edu.au/web/retrieve/14d25f21-e7ae-45b4-b028-e3a1e6453530 | en |
local.subject.for2020 | 300210 Sustainable agricultural development | en |
local.subject.for2020 | 410101 Carbon sequestration science | en |
local.subject.seo2020 | 180605 Soils | en |
local.date.start | 2012-10-14 | - |
local.date.end | 2012-10-18 | - |
Appears in Collections: | Conference Publication School of Environmental and Rural Science |
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