Tensile strength, friability and organic carbon in an oxisol under a crop-livestock system

Detalhes bibliográficos
Autor(a) principal: Guimarães,Rachel Muylaert Locks
Data de Publicação: 2009
Outros Autores: Tormena,Cássio Antonio, Alves,Sérgio José, Fidalski,Jonez, Blainski,Éverton
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Scientia Agrícola (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162009000400011
Resumo: The crop-livestock system can promote soil compaction in surface layers, mainly due to animal trampling. However, plants and their root growth, in interaction with animal trampling, can decrease the deleterious changes in soil structure caused by this system. Up to the present time, the physical soil modifications in crop-livestock systems, including oat and ryegrass crops for winter animal forages are unknown. The objective of this study was to quantify and to relate tensile strength, friability and soil organic carbon in an Oxisol under a crop-livestock system. The study was conducted in Campo Mourão - Paraná, Brazil. Four forage heights were used for the winter forages: 7, 14, 21 and 28 cm. For each forage height, five soil blocks were randomly collected from each layer of 0 - 0.1, 0.1 - 0.2 and 0.2 - 0.3 m of depth. The increase in carbon content promotes an increase in soil tensile strength at the 0.1 - 0.2 m soil depth, this layer having the highest values for tensile strength. The forage height of 21 cm was found to be the best height for soil friability, and the soil was very friable at this height. Despite a decrease in friability in the upper layers of the soil, the crop-livestock system was not found to be a limiting factor for the subsequent cultivation of annual crops.
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spelling Tensile strength, friability and organic carbon in an oxisol under a crop-livestock systemaggregatesoil structureno-tillagesoil physical qualitymicrostructureThe crop-livestock system can promote soil compaction in surface layers, mainly due to animal trampling. However, plants and their root growth, in interaction with animal trampling, can decrease the deleterious changes in soil structure caused by this system. Up to the present time, the physical soil modifications in crop-livestock systems, including oat and ryegrass crops for winter animal forages are unknown. The objective of this study was to quantify and to relate tensile strength, friability and soil organic carbon in an Oxisol under a crop-livestock system. The study was conducted in Campo Mourão - Paraná, Brazil. Four forage heights were used for the winter forages: 7, 14, 21 and 28 cm. For each forage height, five soil blocks were randomly collected from each layer of 0 - 0.1, 0.1 - 0.2 and 0.2 - 0.3 m of depth. The increase in carbon content promotes an increase in soil tensile strength at the 0.1 - 0.2 m soil depth, this layer having the highest values for tensile strength. The forage height of 21 cm was found to be the best height for soil friability, and the soil was very friable at this height. Despite a decrease in friability in the upper layers of the soil, the crop-livestock system was not found to be a limiting factor for the subsequent cultivation of annual crops.Escola Superior de Agricultura "Luiz de Queiroz"2009-08-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162009000400011Scientia Agricola v.66 n.4 2009reponame:Scientia Agrícola (Online)instname:Universidade de São Paulo (USP)instacron:USP10.1590/S0103-90162009000400011info:eu-repo/semantics/openAccessGuimarães,Rachel Muylaert LocksTormena,Cássio AntonioAlves,Sérgio JoséFidalski,JonezBlainski,Évertoneng2009-08-04T00:00:00Zoai:scielo:S0103-90162009000400011Revistahttp://revistas.usp.br/sa/indexPUBhttps://old.scielo.br/oai/scielo-oai.phpscientia@usp.br||alleoni@usp.br1678-992X0103-9016opendoar:2009-08-04T00:00Scientia Agrícola (Online) - Universidade de São Paulo (USP)false
dc.title.none.fl_str_mv Tensile strength, friability and organic carbon in an oxisol under a crop-livestock system
title Tensile strength, friability and organic carbon in an oxisol under a crop-livestock system
spellingShingle Tensile strength, friability and organic carbon in an oxisol under a crop-livestock system
Guimarães,Rachel Muylaert Locks
aggregate
soil structure
no-tillage
soil physical quality
microstructure
title_short Tensile strength, friability and organic carbon in an oxisol under a crop-livestock system
title_full Tensile strength, friability and organic carbon in an oxisol under a crop-livestock system
title_fullStr Tensile strength, friability and organic carbon in an oxisol under a crop-livestock system
title_full_unstemmed Tensile strength, friability and organic carbon in an oxisol under a crop-livestock system
title_sort Tensile strength, friability and organic carbon in an oxisol under a crop-livestock system
author Guimarães,Rachel Muylaert Locks
author_facet Guimarães,Rachel Muylaert Locks
Tormena,Cássio Antonio
Alves,Sérgio José
Fidalski,Jonez
Blainski,Éverton
author_role author
author2 Tormena,Cássio Antonio
Alves,Sérgio José
Fidalski,Jonez
Blainski,Éverton
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Guimarães,Rachel Muylaert Locks
Tormena,Cássio Antonio
Alves,Sérgio José
Fidalski,Jonez
Blainski,Éverton
dc.subject.por.fl_str_mv aggregate
soil structure
no-tillage
soil physical quality
microstructure
topic aggregate
soil structure
no-tillage
soil physical quality
microstructure
description The crop-livestock system can promote soil compaction in surface layers, mainly due to animal trampling. However, plants and their root growth, in interaction with animal trampling, can decrease the deleterious changes in soil structure caused by this system. Up to the present time, the physical soil modifications in crop-livestock systems, including oat and ryegrass crops for winter animal forages are unknown. The objective of this study was to quantify and to relate tensile strength, friability and soil organic carbon in an Oxisol under a crop-livestock system. The study was conducted in Campo Mourão - Paraná, Brazil. Four forage heights were used for the winter forages: 7, 14, 21 and 28 cm. For each forage height, five soil blocks were randomly collected from each layer of 0 - 0.1, 0.1 - 0.2 and 0.2 - 0.3 m of depth. The increase in carbon content promotes an increase in soil tensile strength at the 0.1 - 0.2 m soil depth, this layer having the highest values for tensile strength. The forage height of 21 cm was found to be the best height for soil friability, and the soil was very friable at this height. Despite a decrease in friability in the upper layers of the soil, the crop-livestock system was not found to be a limiting factor for the subsequent cultivation of annual crops.
publishDate 2009
dc.date.none.fl_str_mv 2009-08-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162009000400011
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162009000400011
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0103-90162009000400011
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Escola Superior de Agricultura "Luiz de Queiroz"
publisher.none.fl_str_mv Escola Superior de Agricultura "Luiz de Queiroz"
dc.source.none.fl_str_mv Scientia Agricola v.66 n.4 2009
reponame:Scientia Agrícola (Online)
instname:Universidade de São Paulo (USP)
instacron:USP
instname_str Universidade de São Paulo (USP)
instacron_str USP
institution USP
reponame_str Scientia Agrícola (Online)
collection Scientia Agrícola (Online)
repository.name.fl_str_mv Scientia Agrícola (Online) - Universidade de São Paulo (USP)
repository.mail.fl_str_mv scientia@usp.br||alleoni@usp.br
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