Soil microbial response to nitrogen fertilizer and tillage in barley and corn

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dc.contributor.authorLupwayi, N. Z.en
dc.contributor.authorLafond, G. P.en
dc.contributor.authorZiadi, N.en
dc.contributor.authorGrant, C. A.en
dc.contributor.departmentSustainable Agriculture and Natural Resource Management (SANREM) Knowledgebaseen
dc.coverage.spatialIndian Headen
dc.coverage.spatialL’Acadieen
dc.coverage.spatialQuébecen
dc.coverage.spatialSaskatchewanen
dc.coverage.spatialCanadaen
dc.date.accessioned2016-04-19T20:29:24Zen
dc.date.available2016-04-19T20:29:24Zen
dc.date.issued2012en
dc.descriptionMetadata only recorden
dc.description.abstractIt is hypothesized that inorganic nitrogen fertilization rates may affect soil microorganism amounts and diversity. This study examined the differences in soil microbial mass, functional diversity, and community level physiological profiles (CLPPs) of microorganisms obtained from soils treated with recommended (agronomic) inorganic nitrogen fertilization rates and excess inorganic nitrogen fertilization rates under conventional tillage and no-till treatments from 2004-2006. Barley (Hordeum vulgare L.) in a Black Chernozem soil and maize (Zea mays L.) in a Orthic Gleysol were used. Nitrogen applied at recommended rates increased or did not effect soil microbial mass and diversity, but increased fertilization rates lowered biomass. No-till practices in maize resulted in 30-102% increases in biomass. These results support the claim that application rate of inorganic nitrogen can impact soil microflora and soil fertility testing is necessary to avoid any negative impacts on soil microorganisms.en
dc.format.mimetypetext/plainen
dc.identifier5425en
dc.identifier.citationSoil and Tillage Research 118: 139 – 146en
dc.identifier.doihttps://doi.org/10.1016/j.still.2011.11.006en
dc.identifier.issn0167-1987en
dc.identifier.urihttp://hdl.handle.net/10919/69929en
dc.language.isoen_USen
dc.publisherElsevieren
dc.rightsIn Copyrighten
dc.rights.holderCopyright 2011 Elsevier B.V. All rights reserved.en
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectSoil fertilityen
dc.subjectConservation tillageen
dc.subjectSoil microbial biomassen
dc.subjectSoil microbial diversityen
dc.subjectCommunity-level physiological profilesen
dc.subjectSaskatchewanen
dc.subjectBarleyen
dc.subjectL’acadieen
dc.subjectQuebecen
dc.subjectMaizeen
dc.subjectField Scaleen
dc.titleSoil microbial response to nitrogen fertilizer and tillage in barley and cornen
dc.typeAbstracten
dc.type.dcmitypeTexten

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