Earthworm populations and growth rates related to long-term crop residue and tillage management

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dc.contributor.authorEriksen-Hamel, N. S.en
dc.contributor.authorSperatti, A. B.en
dc.contributor.authorWhalen, J. K.en
dc.contributor.authorLegere, A.en
dc.contributor.authorMadramootoo, C. A.en
dc.contributor.departmentSustainable Agriculture and Natural Resource Management (SANREM) Knowledgebaseen
dc.coverage.spatialQuébecen
dc.coverage.spatialCanadaen
dc.coverage.temporal1991 - 2006en
dc.date.accessioned2016-04-19T20:07:30Zen
dc.date.available2016-04-19T20:07:30Zen
dc.date.issued2009en
dc.descriptionMetadata only recorden
dc.description.abstractThis study evaluates the effects on earthworm populations of three tillage systems (moldboard plow/disk harrow (CT), chisel plow or disk harrow (RT) and no tillage (NT)) with high or low crop residue input levels. In the soil cores sampled from the field trials, NT plots had greater earthworm populations and biomass, but crop residue level showed no effect. However, laboratory trials with intact soil cores showed that both decreased tillage disturbance and increased residue input positively impacted earthworm growth. The positive correlation between earthworm growth rates and available soil organic C pool suggest that the availability of organic substrates for earthworm food is a significant factor controlling earthworm populations. The authors conclude that in cool, humid agroecosystems soil disturbance from tillage appears to have more influence on earthworm populations than food availability.en
dc.format.mimetypetext/plainen
dc.identifier4536en
dc.identifier.citationSoil and Tillage Research 104(2): 311-316en
dc.identifier.doihttps://doi.org/10.1016/j.still.2009.04.006en
dc.identifier.issn0617-1987en
dc.identifier.urihttp://hdl.handle.net/10919/68818en
dc.language.isoen_USen
dc.publisherElsevieren
dc.rightsIn Copyrighten
dc.rights.holderCopyright 2009 Elsevier B.V. All rights reserved.en
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectSoil managementen
dc.subjectAgricultural ecosystemsen
dc.subjectSoil organic matteren
dc.subjectTemperate zonesen
dc.subjectConservation tillageen
dc.subjectEarthwormsen
dc.subjectAporrectodea turgidaen
dc.subjectGrowth ratesen
dc.subjectTillage systemen
dc.subjectCrop residue inputen
dc.subjectField Scaleen
dc.titleEarthworm populations and growth rates related to long-term crop residue and tillage managementen
dc.typeAbstracten
dc.type.dcmitypeTexten

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