Enhancing crop productivity via weed suppression in organic no-till cropping systems in Santa Catarina, Brazil

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dc.contributor.authorAltieri, Miguel A.en
dc.contributor.authorLana, Marcos A.en
dc.contributor.authorBittencourt, Henrique V.en
dc.contributor.authorKieling, André S.en
dc.contributor.authorComin, Jucinei J.en
dc.contributor.authorLovato, Paulo E.en
dc.contributor.departmentSustainable Agriculture and Natural Resource Management (SANREM) Knowledgebaseen
dc.coverage.spatialSanta Catarinaen
dc.coverage.spatialBrazilen
dc.coverage.spatialSouth Americaen
dc.date.accessioned2016-04-19T20:29:17Zen
dc.date.available2016-04-19T20:29:17Zen
dc.date.issued2011en
dc.descriptionMetadata only recorden
dc.description.abstractIn Santa Catarina, southern Brazil, family farmers modified the conventional no-till system by flattening cover crop mixtures on the soil surface as a strategy to reduce soil erosion and lower fluctuations in soil moisture and temperature, improve soil quality, and enhance weed suppression and crop performance. During 2007 and 2008, we conducted three experiments aimed at understanding the processes and mechanisms at play in successful organic conservation tillage systems (OCT), especially the underpinnings of ecological weed suppression, a key advantage of OCT systems over conventional no-till systems. Our results, as well as farmers observations, suggest that cover crops can enhance weed suppression and hence crop productivity through physical interference and allelopathy and also a host of effects on soil quality, fertility, and soil moisture that we did not measure. Results from the three trials indicate that the best cover crop mixture should include a significant proportion of rye, vetch, and fodder radish as these mixtures produce large biomass, and are readily killed by rolling forming a thick mulch sufficient to provide effective weed control in the subsequent vegetable crop. (CAB Abstract)en
dc.format.mimetypetext/plainen
dc.identifier5225en
dc.identifier.citationJournal of Sustainable Agriculture 35(8): 855-869en
dc.identifier.issn1044-0046en
dc.identifier.urihttp://hdl.handle.net/10919/69902en
dc.language.isoen_USen
dc.publisherTaylor & Francis Groupen
dc.rightsIn Copyrighten
dc.rights.holderCopyright 2011 Taylor & Francis Groupen
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectPest controlen
dc.subjectPest managementen
dc.subjectEcoagricultureen
dc.subjectConservation tillageen
dc.subjectSanta catarinaen
dc.subjectBrazilen
dc.subjectWeed managementen
dc.subjectCover cropsen
dc.subjectOrganic conservation tillage systemsen
dc.subjectOct,en
dc.titleEnhancing crop productivity via weed suppression in organic no-till cropping systems in Santa Catarina, Brazilen
dc.typeAbstracten
dc.type.dcmitypeTexten

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