Properties of a Fragiudult in Alagoas State, Brazil, under continuous sugarcane cultivation
Autor(a) principal: | |
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Data de Publicação: | 2004 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Pesquisa Agropecuária Brasileira (Online) |
Texto Completo: | https://seer.sct.embrapa.br/index.php/pab/article/view/6740 |
Resumo: | The objective of this work was to evaluate the modifications on morphological and physical properties of a Fragiudult caused by continuous sugarcane cultivation in the Low Coastal Tablelands region of Alagoas State, Brazil. Three sites were selected, one from native forest and two cultivated with sugarcane for periods of two and thirty years. The sugarcane cultivation promoted morphological changes on the soil surface with the development of an Ap horizon, and changed the soil structure of the two upper horizons. The morphological changes, however, were not expressive due to the small clay content of the horizons. The cropping practices adopted decreased macroporosity and, consequently, increased the soil water availability. Land use increased microporosity and decreased significantly the hydraulic conductivity of the surface horizons. Significant changes in bulk density, total porosity, macroporosity, wilting point, and in the size and distribution of aggregates were not observed. The development of compaction on the Ap and AB horizons as a result of sugarcane cultivation, and the presence of a dense layer (cohesion) in the Bt horizon of all soil profiles were observed. |
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Properties of a Fragiudult in Alagoas State, Brazil, under continuous sugarcane cultivationPropriedades de um Argissolo Amarelo fragipânico de Alagoas sob cultivo contínuo da cana-de-açúcarSaccharum; soil morphology; soil compaction; soil physical propertiesSaccharum; morfologia de solo; compactação do solo; propriedade física do soloThe objective of this work was to evaluate the modifications on morphological and physical properties of a Fragiudult caused by continuous sugarcane cultivation in the Low Coastal Tablelands region of Alagoas State, Brazil. Three sites were selected, one from native forest and two cultivated with sugarcane for periods of two and thirty years. The sugarcane cultivation promoted morphological changes on the soil surface with the development of an Ap horizon, and changed the soil structure of the two upper horizons. The morphological changes, however, were not expressive due to the small clay content of the horizons. The cropping practices adopted decreased macroporosity and, consequently, increased the soil water availability. Land use increased microporosity and decreased significantly the hydraulic conductivity of the surface horizons. Significant changes in bulk density, total porosity, macroporosity, wilting point, and in the size and distribution of aggregates were not observed. The development of compaction on the Ap and AB horizons as a result of sugarcane cultivation, and the presence of a dense layer (cohesion) in the Bt horizon of all soil profiles were observed.O objetivo deste trabalho foi avaliar as alterações nas propriedades morfológicas e físicas de um Argissolo Amarelo distrófico abrupto fragipânico sob cultivo contínuo de cana-de-açúcar. Três talhões foram selecionados, um coberto por vegetação de mata nativa e os outros dois cultivados com cana-de-açúcar, por períodos de dois e trinta anos. O cultivo da cana-de-açúcar alterou morfologicamente o horizonte superficial, desenvolvendo um horizonte Ap, e modificou a estrutura dos dois primeiros horizontes do perfil. As alterações morfológicas, entretanto, foram pouco expressivas em virtude dos baixos teores de argila destes horizontes. O manejo adotado causou diminuição da macroporosidade e, consequentemente, aumentou a água disponível. Por outro lado, o uso agrícola aumentou a microporosidade e reduziu significativamente a condutividade hidráulica dos horizontes superficiais. Não se observou variação significativa na densidade do solo, porosidade total, macroporosidade, ponto de murcha permanente ou no tamanho e distribuição dos agregados. Constatou-se desenvolvimento de compactação nos horizontes Ap e AB, em decorrência do cultivo da cana-de-açúcar, e a existência de adensamento (caráter coeso) no horizonte Bt de todos os perfis.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraMaia, Joselanne Luiza TrajanoRibeiro, Mateus Rosas2004-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/6740Pesquisa Agropecuaria Brasileira; v.39, n.1, jan. 2004; 79-87Pesquisa Agropecuária Brasileira; v.39, n.1, jan. 2004; 79-871678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/6740/3796info:eu-repo/semantics/openAccess2014-07-14T18:08:37Zoai:ojs.seer.sct.embrapa.br:article/6740Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-07-14T18:08:37Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Properties of a Fragiudult in Alagoas State, Brazil, under continuous sugarcane cultivation Propriedades de um Argissolo Amarelo fragipânico de Alagoas sob cultivo contínuo da cana-de-açúcar |
title |
Properties of a Fragiudult in Alagoas State, Brazil, under continuous sugarcane cultivation |
spellingShingle |
Properties of a Fragiudult in Alagoas State, Brazil, under continuous sugarcane cultivation Maia, Joselanne Luiza Trajano Saccharum; soil morphology; soil compaction; soil physical properties Saccharum; morfologia de solo; compactação do solo; propriedade física do solo |
title_short |
Properties of a Fragiudult in Alagoas State, Brazil, under continuous sugarcane cultivation |
title_full |
Properties of a Fragiudult in Alagoas State, Brazil, under continuous sugarcane cultivation |
title_fullStr |
Properties of a Fragiudult in Alagoas State, Brazil, under continuous sugarcane cultivation |
title_full_unstemmed |
Properties of a Fragiudult in Alagoas State, Brazil, under continuous sugarcane cultivation |
title_sort |
Properties of a Fragiudult in Alagoas State, Brazil, under continuous sugarcane cultivation |
author |
Maia, Joselanne Luiza Trajano |
author_facet |
Maia, Joselanne Luiza Trajano Ribeiro, Mateus Rosas |
author_role |
author |
author2 |
Ribeiro, Mateus Rosas |
author2_role |
author |
dc.contributor.none.fl_str_mv |
|
dc.contributor.author.fl_str_mv |
Maia, Joselanne Luiza Trajano Ribeiro, Mateus Rosas |
dc.subject.por.fl_str_mv |
Saccharum; soil morphology; soil compaction; soil physical properties Saccharum; morfologia de solo; compactação do solo; propriedade física do solo |
topic |
Saccharum; soil morphology; soil compaction; soil physical properties Saccharum; morfologia de solo; compactação do solo; propriedade física do solo |
description |
The objective of this work was to evaluate the modifications on morphological and physical properties of a Fragiudult caused by continuous sugarcane cultivation in the Low Coastal Tablelands region of Alagoas State, Brazil. Three sites were selected, one from native forest and two cultivated with sugarcane for periods of two and thirty years. The sugarcane cultivation promoted morphological changes on the soil surface with the development of an Ap horizon, and changed the soil structure of the two upper horizons. The morphological changes, however, were not expressive due to the small clay content of the horizons. The cropping practices adopted decreased macroporosity and, consequently, increased the soil water availability. Land use increased microporosity and decreased significantly the hydraulic conductivity of the surface horizons. Significant changes in bulk density, total porosity, macroporosity, wilting point, and in the size and distribution of aggregates were not observed. The development of compaction on the Ap and AB horizons as a result of sugarcane cultivation, and the presence of a dense layer (cohesion) in the Bt horizon of all soil profiles were observed. |
publishDate |
2004 |
dc.date.none.fl_str_mv |
2004-01-01 |
dc.type.none.fl_str_mv |
|
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://seer.sct.embrapa.br/index.php/pab/article/view/6740 |
url |
https://seer.sct.embrapa.br/index.php/pab/article/view/6740 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://seer.sct.embrapa.br/index.php/pab/article/view/6740/3796 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira Pesquisa Agropecuária Brasileira |
publisher.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira Pesquisa Agropecuária Brasileira |
dc.source.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira; v.39, n.1, jan. 2004; 79-87 Pesquisa Agropecuária Brasileira; v.39, n.1, jan. 2004; 79-87 1678-3921 0100-104x reponame:Pesquisa Agropecuária Brasileira (Online) instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA |
instname_str |
Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
instacron_str |
EMBRAPA |
institution |
EMBRAPA |
reponame_str |
Pesquisa Agropecuária Brasileira (Online) |
collection |
Pesquisa Agropecuária Brasileira (Online) |
repository.name.fl_str_mv |
Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
repository.mail.fl_str_mv |
pab@sct.embrapa.br || sct.pab@embrapa.br |
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1793416698876919808 |