Impact of No-Tillage and Conventional Tillage Systems on Soil Microbial Communities

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dc.contributor.authorMathew, Reji P.en
dc.contributor.authorFeng, Yuchengen
dc.contributor.authorGithinji, Leonarden
dc.contributor.authorAnkumah, Rambleen
dc.contributor.authorBalkcom, Kipling S.en
dc.date.accessioned2017-11-08T15:47:29Zen
dc.date.available2017-11-08T15:47:29Zen
dc.date.issued2012en
dc.description.abstractSoil management practices influence soil physical and chemical characteristics and bring about changes in the soil microbial community structure and function. In this study, the effects of long-term conventional and no-tillage practices on microbial community structure, enzyme activities, and selected physicochemical properties were determined in a continuous corn system on a Decatur silt loam soil. The long-term no-tillage treatment resulted in higher soil carbon and nitrogen contents, viable microbial biomass, and phosphatase activities at the 0–5 cm depth than the conventional tillage treatment. Soil microbial community structure assessed using phospholipid fatty acid (PLFA) analysis and automated ribosomal intergenic spacer analysis (ARISA) varied by tillage practice and soil depth. The abundance of PLFAs indicative of fungi, bacteria, arbuscular mycorrhizal fungi, and actinobacteria was consistently higher in the no-till surface soil. Results of principal components analysis based on soil physicochemical and enzyme variables were in agreement with those based on PLFA and ARISA profiles. Soil organic carbon was positively correlated with most of the PLFA biomarkers. These results indicate that tillage practice and soil depth were two important factors affecting soil microbial community structure and activity, and conservation tillage practices improve both physicochemical and microbiological properties of soil.en
dc.description.notesSoil management practices influence soil physical and chemical characteristics and bring about changes in the soil microbial community structure and function.en
dc.description.versionPublished versionen
dc.format.extent1 - 10 page(s)en
dc.identifier.citationReji P. Mathew, Yucheng Feng, Leonard Githinji, Ramble Ankumah, Kipling S. Balkcom, "Impact of No-Tillage and Conventional Tillage Systems on Soil Microbial Communities", Applied and Environmental Soil Science, vol. 2012, Article ID 548620, 10 pages, 2012. https://doi.org/10.1155/2012/548620en
dc.identifier.doihttps://doi.org/10.1155/2012/548620en
dc.identifier.eissn1687-7675en
dc.identifier.issn1687-7667en
dc.identifier.urihttp://hdl.handle.net/10919/79997en
dc.identifier.volume2012en
dc.language.isoenen
dc.rightsCreative Commons Attribution 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.titleImpact of No-Tillage and Conventional Tillage Systems on Soil Microbial Communitiesen
dc.title.serialApplied and Environmental Soil Scienceen
dc.typeArticle - Refereeden
pubs.organisational-group/Virginia Techen
pubs.organisational-group/Virginia Tech/Agriculture & Life Sciencesen
pubs.organisational-group/Virginia Tech/Agriculture & Life Sciences/Virginia Cooperative Extensionen
pubs.organisational-group/Virginia Tech/Agriculture & Life Sciences/VSUen

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