Metabolic diversity and microbial activity in the soil in an integrated crop‑livestock system under grazing intensities
Autor(a) principal: | |
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Data de Publicação: | 2012 |
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/9077 |
Resumo: | The objective of this work was to evaluate the metabolic diversity and the microbial activity in an integrated crop-livestock system under no-tillage, and at different grazing intensities and soybean production. The experiment was carried out in São Miguel das Missões county, in Rio Grande do Sul state, Brazil, in a clayey Rhodic Hapludox (Oxisol), subjected to grazing intensities at 10, 20, 30 and 40 cm‑height of pasture with black oat + italian ryegrass, and a nongrazing treatment, in the winter. The metabolic diversity was evaluated with the Biolog EcoPlate technique, by the Shannon diversity index, and the microbial activity by the fluorescein diacetate hydrolysis method. There was higher functional diversity at the moderate grazing intensities (20 to 40 cm). The highest microbial activity, in the soil, occurred in the nongrazing treatment because of the high quantity of plant residues. Microbial functional diversity and activity had alterations caused by the grazing intensities, which can be used as soil quality indicators on integrated crop-livestock systems under no-tillage. |
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Metabolic diversity and microbial activity in the soil in an integrated crop‑livestock system under grazing intensitiesDiversidade metabólica e atividade microbiana no solo em sistema de integração lavoura‑pecuária sob intensidades de pastejofluorescein diacetate; no-tillage; soil qualitydiacetato de fluoresceína; plantio direto; qualidade do soloThe objective of this work was to evaluate the metabolic diversity and the microbial activity in an integrated crop-livestock system under no-tillage, and at different grazing intensities and soybean production. The experiment was carried out in São Miguel das Missões county, in Rio Grande do Sul state, Brazil, in a clayey Rhodic Hapludox (Oxisol), subjected to grazing intensities at 10, 20, 30 and 40 cm‑height of pasture with black oat + italian ryegrass, and a nongrazing treatment, in the winter. The metabolic diversity was evaluated with the Biolog EcoPlate technique, by the Shannon diversity index, and the microbial activity by the fluorescein diacetate hydrolysis method. There was higher functional diversity at the moderate grazing intensities (20 to 40 cm). The highest microbial activity, in the soil, occurred in the nongrazing treatment because of the high quantity of plant residues. Microbial functional diversity and activity had alterations caused by the grazing intensities, which can be used as soil quality indicators on integrated crop-livestock systems under no-tillage.O objetivo deste trabalho foi avaliar a diversidade metabólica e a atividade microbiana, em sistema de integração lavoura-pecuária em plantio direto, sob diferentes intensidades de pastejo e produção de soja. O experimento foi realizado em São Miguel das Missões, RS, em Latossolo Vermelho distroférrico argiloso, submetido ao pastejo a 10, 20, 30 e 40 cm de altura de azevém + aveia-preta, e sem pastejo, no inverno. A diversidade metabólica foi avaliada com microplacas Biolog EcoPlate pelo índice de diversidade de Shannon, e a atividade microbiana pelo método de hidrólise do diacetato de fluoresceína. Houve maior diversidade funcional a intensidades moderadas de pastejo (20 a 40 cm). A maior atividade microbiológica no solo ocorreu no tratamento sem pastejo, em consequência da grande quantidade de resíduos vegetais remanescentes. A diversidade funcional da microbiota e a atividade microbiana tiveram alterações causadas pelas intensidades de pastejo, que podem ser utilizadas como indicadores de qualidade do solo, em sistema de integração lavoura-pecuária em plantio direto.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraCNPqCNPqChávez, Luis FernandoEscobar, Luisa FernandaAnghinoni, IbanorCarvalho, Paulo César de FaccioMeurer, Egon José2012-01-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/9077Pesquisa Agropecuaria Brasileira; v.46, n.10, out. 2011: Número Temático Sistemas de Integração Lavoura-Pecuária-Floresta; 1254-1261Pesquisa Agropecuária Brasileira; v.46, n.10, out. 2011: Número Temático Sistemas de Integração Lavoura-Pecuária-Floresta; 1254-12611678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/9077/6656https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/9077/4450info:eu-repo/semantics/openAccess2014-06-18T19:06:42Zoai:ojs.seer.sct.embrapa.br:article/9077Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-06-18T19:06:42Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Metabolic diversity and microbial activity in the soil in an integrated crop‑livestock system under grazing intensities Diversidade metabólica e atividade microbiana no solo em sistema de integração lavoura‑pecuária sob intensidades de pastejo |
title |
Metabolic diversity and microbial activity in the soil in an integrated crop‑livestock system under grazing intensities |
spellingShingle |
Metabolic diversity and microbial activity in the soil in an integrated crop‑livestock system under grazing intensities Chávez, Luis Fernando fluorescein diacetate; no-tillage; soil quality diacetato de fluoresceína; plantio direto; qualidade do solo |
title_short |
Metabolic diversity and microbial activity in the soil in an integrated crop‑livestock system under grazing intensities |
title_full |
Metabolic diversity and microbial activity in the soil in an integrated crop‑livestock system under grazing intensities |
title_fullStr |
Metabolic diversity and microbial activity in the soil in an integrated crop‑livestock system under grazing intensities |
title_full_unstemmed |
Metabolic diversity and microbial activity in the soil in an integrated crop‑livestock system under grazing intensities |
title_sort |
Metabolic diversity and microbial activity in the soil in an integrated crop‑livestock system under grazing intensities |
author |
Chávez, Luis Fernando |
author_facet |
Chávez, Luis Fernando Escobar, Luisa Fernanda Anghinoni, Ibanor Carvalho, Paulo César de Faccio Meurer, Egon José |
author_role |
author |
author2 |
Escobar, Luisa Fernanda Anghinoni, Ibanor Carvalho, Paulo César de Faccio Meurer, Egon José |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
CNPq CNPq |
dc.contributor.author.fl_str_mv |
Chávez, Luis Fernando Escobar, Luisa Fernanda Anghinoni, Ibanor Carvalho, Paulo César de Faccio Meurer, Egon José |
dc.subject.por.fl_str_mv |
fluorescein diacetate; no-tillage; soil quality diacetato de fluoresceína; plantio direto; qualidade do solo |
topic |
fluorescein diacetate; no-tillage; soil quality diacetato de fluoresceína; plantio direto; qualidade do solo |
description |
The objective of this work was to evaluate the metabolic diversity and the microbial activity in an integrated crop-livestock system under no-tillage, and at different grazing intensities and soybean production. The experiment was carried out in São Miguel das Missões county, in Rio Grande do Sul state, Brazil, in a clayey Rhodic Hapludox (Oxisol), subjected to grazing intensities at 10, 20, 30 and 40 cm‑height of pasture with black oat + italian ryegrass, and a nongrazing treatment, in the winter. The metabolic diversity was evaluated with the Biolog EcoPlate technique, by the Shannon diversity index, and the microbial activity by the fluorescein diacetate hydrolysis method. There was higher functional diversity at the moderate grazing intensities (20 to 40 cm). The highest microbial activity, in the soil, occurred in the nongrazing treatment because of the high quantity of plant residues. Microbial functional diversity and activity had alterations caused by the grazing intensities, which can be used as soil quality indicators on integrated crop-livestock systems under no-tillage. |
publishDate |
2012 |
dc.date.none.fl_str_mv |
2012-01-02 |
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/9077 |
url |
https://seer.sct.embrapa.br/index.php/pab/article/view/9077 |
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/9077/6656 https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/9077/4450 |
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.46, n.10, out. 2011: Número Temático Sistemas de Integração Lavoura-Pecuária-Floresta; 1254-1261 Pesquisa Agropecuária Brasileira; v.46, n.10, out. 2011: Número Temático Sistemas de Integração Lavoura-Pecuária-Floresta; 1254-1261 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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1793416673040007168 |