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