Carbohydrate Composition and Water-Stable Aggregation of an Oxisol as Affected by Crop Sequence under No-Till
Autor(a) principal: | |
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Data de Publicação: | 2012 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.2136/sssaj2011.0110 http://hdl.handle.net/11449/3783 |
Resumo: | 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. |
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Carbohydrate Composition and Water-Stable Aggregation of an Oxisol as Affected by Crop Sequence under No-TillIn 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.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)São Paulo State Univ, Dep Soil Sci, BR-14884900 Jaboticabal, SP, BrazilAgr & Agri Food Canada, Soils & Crops Res & Dev Ctr, Quebec City, PQ G1V 2J3, CanadaSão Paulo State Univ, Dep Soil Sci, BR-14884900 Jaboticabal, SP, BrazilFAPESP: 08/57755-5CAPES: 1193/09-0Soil Sci Soc AmerUniversidade Estadual Paulista (Unesp)Agr & Agri Food CanadaMartins, Marcio dos Reis [UNESP]Angers, Denis A.Cora, Jose Eduardo [UNESP]2014-05-20T13:17:14Z2014-05-20T13:17:14Z2012-03-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article475-484http://dx.doi.org/10.2136/sssaj2011.0110Soil Science Society of America Journal. Madison: Soil Sci Soc Amer, v. 76, n. 2, p. 475-484, 2012.0361-5995http://hdl.handle.net/11449/378310.2136/sssaj2011.0110WOS:000300644400016Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengSoil Science Society of America Journal1.9200,997info:eu-repo/semantics/openAccess2024-06-07T14:23:14Zoai:repositorio.unesp.br:11449/3783Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-06-07T14:23:14Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Carbohydrate Composition and Water-Stable Aggregation of an Oxisol as Affected by Crop Sequence under No-Till |
title |
Carbohydrate Composition and Water-Stable Aggregation of an Oxisol as Affected by Crop Sequence under No-Till |
spellingShingle |
Carbohydrate Composition and Water-Stable Aggregation of an Oxisol as Affected by Crop Sequence under No-Till Martins, Marcio dos Reis [UNESP] |
title_short |
Carbohydrate Composition and Water-Stable Aggregation of an Oxisol as Affected by Crop Sequence under No-Till |
title_full |
Carbohydrate Composition and Water-Stable Aggregation of an Oxisol as Affected by Crop Sequence under No-Till |
title_fullStr |
Carbohydrate Composition and Water-Stable Aggregation of an Oxisol as Affected by Crop Sequence under No-Till |
title_full_unstemmed |
Carbohydrate Composition and Water-Stable Aggregation of an Oxisol as Affected by Crop Sequence under No-Till |
title_sort |
Carbohydrate Composition and Water-Stable Aggregation of an Oxisol as Affected by Crop Sequence under No-Till |
author |
Martins, Marcio dos Reis [UNESP] |
author_facet |
Martins, Marcio dos Reis [UNESP] Angers, Denis A. Cora, Jose Eduardo [UNESP] |
author_role |
author |
author2 |
Angers, Denis A. Cora, Jose Eduardo [UNESP] |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Agr & Agri Food Canada |
dc.contributor.author.fl_str_mv |
Martins, Marcio dos Reis [UNESP] Angers, Denis A. Cora, Jose Eduardo [UNESP] |
description |
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. |
publishDate |
2012 |
dc.date.none.fl_str_mv |
2012-03-01 2014-05-20T13:17:14Z 2014-05-20T13:17:14Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.2136/sssaj2011.0110 Soil Science Society of America Journal. Madison: Soil Sci Soc Amer, v. 76, n. 2, p. 475-484, 2012. 0361-5995 http://hdl.handle.net/11449/3783 10.2136/sssaj2011.0110 WOS:000300644400016 |
url |
http://dx.doi.org/10.2136/sssaj2011.0110 http://hdl.handle.net/11449/3783 |
identifier_str_mv |
Soil Science Society of America Journal. Madison: Soil Sci Soc Amer, v. 76, n. 2, p. 475-484, 2012. 0361-5995 10.2136/sssaj2011.0110 WOS:000300644400016 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Soil Science Society of America Journal 1.920 0,997 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
475-484 |
dc.publisher.none.fl_str_mv |
Soil Sci Soc Amer |
publisher.none.fl_str_mv |
Soil Sci Soc Amer |
dc.source.none.fl_str_mv |
Web of Science reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1803649479234027520 |