Effects of tillage methods on physical properties of a clayey yellow Latosol in the state of Amazonas

Detalhes bibliográficos
Autor(a) principal: Corrêa, José Carlos
Data de Publicação: 2014
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/16363
Resumo: The effects of tillage systems, conventional, rotary hoe ("rotavator") and non-tillage (direct sowing) on the structure of a clayey Yellow Latosol, originally under primary forest vegetation, was evaluated at the EMBRAPA-UEPAE Experiment Satation at Manaus, Amazonas. Bulk density, macro, micro and total porosity, and aggregate stability in water were influenced by systems in the 0 cm- 10 cm and 10 cm-20 cm soil sampling depths. The 0 cm-10 cm depth in the non-tillage systems, presented the greatest increases in bulk density and, consequently, the largest reductions in macro and total porosity. Aggregate stability in water was only affected in the 0 cm -10 cm depth by the conventional and rotary hoe systems. Correlations between organic matter and mean aggregate diameter were low (r = 0,30) due to the clay content (81%) of this soil.
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spelling Effects of tillage methods on physical properties of a clayey yellow Latosol in the state of AmazonasEfeito de métodos de cultivo em algumas propriedades físicas de um Latossolo Amarelo muito argiloso do Estado do Amazonassoil management; sou; physicsmanejo de solo; solo; físicaThe effects of tillage systems, conventional, rotary hoe ("rotavator") and non-tillage (direct sowing) on the structure of a clayey Yellow Latosol, originally under primary forest vegetation, was evaluated at the EMBRAPA-UEPAE Experiment Satation at Manaus, Amazonas. Bulk density, macro, micro and total porosity, and aggregate stability in water were influenced by systems in the 0 cm- 10 cm and 10 cm-20 cm soil sampling depths. The 0 cm-10 cm depth in the non-tillage systems, presented the greatest increases in bulk density and, consequently, the largest reductions in macro and total porosity. Aggregate stability in water was only affected in the 0 cm -10 cm depth by the conventional and rotary hoe systems. Correlations between organic matter and mean aggregate diameter were low (r = 0,30) due to the clay content (81%) of this soil.Foi avaliado o efeito de métodos de preparo de solo convencional, enxada rotativa ("rotavator") e plantio direto, sobre a estrutura do Latossolo Amarelo muito argiloso, em condições de vegetação de floresta virgem, na Estação Experimental da EMBRAPA/UEPAE de Manaus, AM. Observou-se que a influência dos métodos na densidade, macro e microporosidade, porosidade total e estabilidade dos agregados em água ocorreu nas profundidades de 0 cm - 10 cm e 10 cm - 20 cm. O plantio direto, entretanto, foi o que mais afetou a camada superficial de 0 cm - 10 cm, aumentando a densidade do solo e, consequentemente, reduzindo a macroporosidade e porosidade total. A estabilidade dos agregados em água foi afetada somente na profundidade de 0 cm - 10 cm pelos métodos de preparo convencional e rotavator. A correlação entre o teor de matéria orgânica e o diâmetro ponderado dos agregados foi baixa (r = 0,30) devido à alta percentagem de argila (81%) do solo.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraCorrêa, José Carlos2014-04-16info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/16363Pesquisa Agropecuaria Brasileira; v.20, n.11, nov. 1985; 1317-1322Pesquisa Agropecuária Brasileira; v.20, n.11, nov. 1985; 1317-13221678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/16363/10590info:eu-repo/semantics/openAccess2014-04-16T19:38:33Zoai:ojs.seer.sct.embrapa.br:article/16363Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-04-16T19:38:33Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Effects of tillage methods on physical properties of a clayey yellow Latosol in the state of Amazonas
Efeito de métodos de cultivo em algumas propriedades físicas de um Latossolo Amarelo muito argiloso do Estado do Amazonas
title Effects of tillage methods on physical properties of a clayey yellow Latosol in the state of Amazonas
spellingShingle Effects of tillage methods on physical properties of a clayey yellow Latosol in the state of Amazonas
Corrêa, José Carlos
soil management; sou; physics
manejo de solo; solo; física
title_short Effects of tillage methods on physical properties of a clayey yellow Latosol in the state of Amazonas
title_full Effects of tillage methods on physical properties of a clayey yellow Latosol in the state of Amazonas
title_fullStr Effects of tillage methods on physical properties of a clayey yellow Latosol in the state of Amazonas
title_full_unstemmed Effects of tillage methods on physical properties of a clayey yellow Latosol in the state of Amazonas
title_sort Effects of tillage methods on physical properties of a clayey yellow Latosol in the state of Amazonas
author Corrêa, José Carlos
author_facet Corrêa, José Carlos
author_role author
dc.contributor.none.fl_str_mv

dc.contributor.author.fl_str_mv Corrêa, José Carlos
dc.subject.por.fl_str_mv soil management; sou; physics
manejo de solo; solo; física
topic soil management; sou; physics
manejo de solo; solo; física
description The effects of tillage systems, conventional, rotary hoe ("rotavator") and non-tillage (direct sowing) on the structure of a clayey Yellow Latosol, originally under primary forest vegetation, was evaluated at the EMBRAPA-UEPAE Experiment Satation at Manaus, Amazonas. Bulk density, macro, micro and total porosity, and aggregate stability in water were influenced by systems in the 0 cm- 10 cm and 10 cm-20 cm soil sampling depths. The 0 cm-10 cm depth in the non-tillage systems, presented the greatest increases in bulk density and, consequently, the largest reductions in macro and total porosity. Aggregate stability in water was only affected in the 0 cm -10 cm depth by the conventional and rotary hoe systems. Correlations between organic matter and mean aggregate diameter were low (r = 0,30) due to the clay content (81%) of this soil.
publishDate 2014
dc.date.none.fl_str_mv 2014-04-16
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/16363
url https://seer.sct.embrapa.br/index.php/pab/article/view/16363
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/16363/10590
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.20, n.11, nov. 1985; 1317-1322
Pesquisa Agropecuária Brasileira; v.20, n.11, nov. 1985; 1317-1322
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
_version_ 1793416655977578496

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