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DC Field | Value | Language |
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dc.contributor.author | Martins, Marcio dos Reis | - |
dc.contributor.author | Angers, Denis A. | - |
dc.contributor.author | Cora, Jose Eduardo | - |
dc.date.accessioned | 2014-05-20T13:17:14Z | - |
dc.date.accessioned | 2016-10-25T16:38:44Z | - |
dc.date.available | 2014-05-20T13:17:14Z | - |
dc.date.available | 2016-10-25T16:38:44Z | - |
dc.date.issued | 2012-03-01 | - |
dc.identifier | http://dx.doi.org/10.2136/sssaj2011.0110 | - |
dc.identifier.citation | Soil Science Society of America Journal. Madison: Soil Sci Soc Amer, v. 76, n. 2, p. 475-484, 2012. | - |
dc.identifier.issn | 0361-5995 | - |
dc.identifier.uri | http://hdl.handle.net/11449/3783 | - |
dc.identifier.uri | http://acervodigital.unesp.br/handle/11449/3783 | - |
dc.description.abstract | In no-till systems, plants play a substantial role in soil physical conditioning because physical management is otherwise confined to sowing operations. We performed a study to determine the effect of 28 different crop sequences on soil water-stable aggregation, soil organic C (SOC), and the neutral carbohydrate composition of the surface layer (0-5-cm depth) of an Oxisol under no-till. Summer crop sequences with corn (Zea mays L.) on a continuous basis or in rotation with soybean [Glycine max (L.) Merr.] showed a higher mean weight diameter (MWD) of water-stable aggregates than those with a rice (Oryza sativa L.)-bean (Phaseolus vulgaris L.)-cotton (Gossypium hirsutum L.) rotation. Among winter crops, pearl millet [Pennisetum americanum (L.) Leeke] or grain sorghum [Sorghum bicolor (L.) Moench] were associated with a higher MWD than oilseed radish (Raphanus sativus L. var. oleiformis Pers.). Plant tissues of Poaceae species (corn, pearl millet, and sorghum) were enriched in pentoses relative to other plant species. A principal component analysis showed a close positive relationship of the soil aggregate MWD with the soil xylose content, but not with other soil monosaccharide and SOC contents, and a positive relationship with the amount of pentose input to the soil, notably from aboveground plant materials. A possible explanation is that pentosans are used as an energy source by filamentous microorganisms, which play a well-known role in stabilizing soil aggregates. Our results suggest that plant-derived carbohydrates mediate crop species effects on soil structure under no-till conditions, and this effect appears to be independent of changes in total SOC. | en |
dc.description.sponsorship | Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) | - |
dc.description.sponsorship | Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) | - |
dc.format.extent | 475-484 | - |
dc.language.iso | eng | - |
dc.publisher | Soil Sci Soc Amer | - |
dc.source | Web of Science | - |
dc.title | Carbohydrate Composition and Water-Stable Aggregation of an Oxisol as Affected by Crop Sequence under No-Till | en |
dc.type | outro | - |
dc.contributor.institution | Universidade Estadual Paulista (UNESP) | - |
dc.contributor.institution | Agr & Agri Food Canada | - |
dc.description.affiliation | São Paulo State Univ, Dep Soil Sci, BR-14884900 Jaboticabal, SP, Brazil | - |
dc.description.affiliation | Agr & Agri Food Canada, Soils & Crops Res & Dev Ctr, Quebec City, PQ G1V 2J3, Canada | - |
dc.description.affiliationUnesp | São Paulo State Univ, Dep Soil Sci, BR-14884900 Jaboticabal, SP, Brazil | - |
dc.description.sponsorshipId | FAPESP: 08/57755-5 | - |
dc.description.sponsorshipId | CAPES: 1193/09-0 | - |
dc.identifier.doi | 10.2136/sssaj2011.0110 | - |
dc.identifier.wos | WOS:000300644400016 | - |
dc.rights.accessRights | Acesso aberto | - |
dc.relation.ispartof | Soil Science Society of America Journal | - |
Appears in Collections: | Artigos, TCCs, Teses e Dissertações da Unesp |
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