Effect of planting system and nicosulfuron doses on soil microbial activity
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Repositório Institucional do INPA |
Texto Completo: | https://repositorio.inpa.gov.br/handle/1/16165 |
Resumo: | This study aimed to evaluate the effect of atrazine + nicosulfuron on soil microbial activity, under the conventional and no-tillage systems. The experiment was carried out in an area of maize-brachiaria intercropping, where atrazine + nicosulfuron were applied at (1,500 + 10 and 1,500 + 30 g h -1) with a weed-handed area being maintained without prior cultivation and another area without weed control. At flowering, soil samples were collected to determine the rate of CO 2 unfastening, microbial biomass carbon (MBC) and metabolic quotient (qCO 2) using the relation between accumulated CO 2 and MBC. The rate of CO 2 unfastening was lower only in plots without weed control. MBC was higher in the no-tillage system, being negatively affected due to the absence of vegetation. Lower MBC was observed in the weed-handed areas, probably due to the absence of straw. Under no-tillage system conditions, no difference was observed between the soil treatments with herbicide application and those without weed control. It can be concluded that the evaluated microbiological indicators were sensitive to the treatments, showing lower soil disturbance under no-tillage system conditions. However, in crop-livestock integration under the conventional system, the negative herbicide effect increase of nicosulfuron rate. |
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Camelo, Gessimar NunesSantos, J. B.Lázari, T. M.Oliveira, Taciane Almeida deSantos, E. A.Ferreira, Evander Alvese Pereira, G. A.M.2020-05-25T20:59:12Z2020-05-25T20:59:12Z2011https://repositorio.inpa.gov.br/handle/1/1616510.1590/S0100-83582011000400013This study aimed to evaluate the effect of atrazine + nicosulfuron on soil microbial activity, under the conventional and no-tillage systems. The experiment was carried out in an area of maize-brachiaria intercropping, where atrazine + nicosulfuron were applied at (1,500 + 10 and 1,500 + 30 g h -1) with a weed-handed area being maintained without prior cultivation and another area without weed control. At flowering, soil samples were collected to determine the rate of CO 2 unfastening, microbial biomass carbon (MBC) and metabolic quotient (qCO 2) using the relation between accumulated CO 2 and MBC. The rate of CO 2 unfastening was lower only in plots without weed control. MBC was higher in the no-tillage system, being negatively affected due to the absence of vegetation. Lower MBC was observed in the weed-handed areas, probably due to the absence of straw. Under no-tillage system conditions, no difference was observed between the soil treatments with herbicide application and those without weed control. It can be concluded that the evaluated microbiological indicators were sensitive to the treatments, showing lower soil disturbance under no-tillage system conditions. However, in crop-livestock integration under the conventional system, the negative herbicide effect increase of nicosulfuron rate.Volume 29, Número 4, Pags. 829-835Attribution-NonCommercial-NoDerivs 3.0 Brazilhttp://creativecommons.org/licenses/by-nc-nd/3.0/br/info:eu-repo/semantics/openAccessBrachiariaZea MaysEffect of planting system and nicosulfuron doses on soil microbial activityEfeito Do Sistema De Plantio E Doses Do Nicosulfuron Sobre A Atividade Microbiana Do Soloinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlePlanta Daninhaporreponame:Repositório Institucional do INPAinstname:Instituto Nacional de Pesquisas da Amazônia (INPA)instacron:INPAORIGINALartigo-inpa.pdfartigo-inpa.pdfapplication/pdf572491https://repositorio.inpa.gov.br/bitstream/1/16165/1/artigo-inpa.pdf4dd2de2ba20a3ae9089a1b6769b2f711MD511/161652020-05-25 17:28:47.2oai:repositorio:1/16165Repositório de PublicaçõesPUBhttps://repositorio.inpa.gov.br/oai/requestopendoar:2020-05-25T21:28:47Repositório Institucional do INPA - Instituto Nacional de Pesquisas da Amazônia (INPA)false |
dc.title.en.fl_str_mv |
Effect of planting system and nicosulfuron doses on soil microbial activity |
dc.title.alternative.pt_BR.fl_str_mv |
Efeito Do Sistema De Plantio E Doses Do Nicosulfuron Sobre A Atividade Microbiana Do Solo |
title |
Effect of planting system and nicosulfuron doses on soil microbial activity |
spellingShingle |
Effect of planting system and nicosulfuron doses on soil microbial activity Camelo, Gessimar Nunes Brachiaria Zea Mays |
title_short |
Effect of planting system and nicosulfuron doses on soil microbial activity |
title_full |
Effect of planting system and nicosulfuron doses on soil microbial activity |
title_fullStr |
Effect of planting system and nicosulfuron doses on soil microbial activity |
title_full_unstemmed |
Effect of planting system and nicosulfuron doses on soil microbial activity |
title_sort |
Effect of planting system and nicosulfuron doses on soil microbial activity |
author |
Camelo, Gessimar Nunes |
author_facet |
Camelo, Gessimar Nunes Santos, J. B. Lázari, T. M. Oliveira, Taciane Almeida de Santos, E. A. Ferreira, Evander Alves e Pereira, G. A.M. |
author_role |
author |
author2 |
Santos, J. B. Lázari, T. M. Oliveira, Taciane Almeida de Santos, E. A. Ferreira, Evander Alves e Pereira, G. A.M. |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Camelo, Gessimar Nunes Santos, J. B. Lázari, T. M. Oliveira, Taciane Almeida de Santos, E. A. Ferreira, Evander Alves e Pereira, G. A.M. |
dc.subject.eng.fl_str_mv |
Brachiaria Zea Mays |
topic |
Brachiaria Zea Mays |
description |
This study aimed to evaluate the effect of atrazine + nicosulfuron on soil microbial activity, under the conventional and no-tillage systems. The experiment was carried out in an area of maize-brachiaria intercropping, where atrazine + nicosulfuron were applied at (1,500 + 10 and 1,500 + 30 g h -1) with a weed-handed area being maintained without prior cultivation and another area without weed control. At flowering, soil samples were collected to determine the rate of CO 2 unfastening, microbial biomass carbon (MBC) and metabolic quotient (qCO 2) using the relation between accumulated CO 2 and MBC. The rate of CO 2 unfastening was lower only in plots without weed control. MBC was higher in the no-tillage system, being negatively affected due to the absence of vegetation. Lower MBC was observed in the weed-handed areas, probably due to the absence of straw. Under no-tillage system conditions, no difference was observed between the soil treatments with herbicide application and those without weed control. It can be concluded that the evaluated microbiological indicators were sensitive to the treatments, showing lower soil disturbance under no-tillage system conditions. However, in crop-livestock integration under the conventional system, the negative herbicide effect increase of nicosulfuron rate. |
publishDate |
2011 |
dc.date.issued.fl_str_mv |
2011 |
dc.date.accessioned.fl_str_mv |
2020-05-25T20:59:12Z |
dc.date.available.fl_str_mv |
2020-05-25T20:59:12Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://repositorio.inpa.gov.br/handle/1/16165 |
dc.identifier.doi.none.fl_str_mv |
10.1590/S0100-83582011000400013 |
url |
https://repositorio.inpa.gov.br/handle/1/16165 |
identifier_str_mv |
10.1590/S0100-83582011000400013 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.ispartof.pt_BR.fl_str_mv |
Volume 29, Número 4, Pags. 829-835 |
dc.rights.driver.fl_str_mv |
Attribution-NonCommercial-NoDerivs 3.0 Brazil http://creativecommons.org/licenses/by-nc-nd/3.0/br/ info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Attribution-NonCommercial-NoDerivs 3.0 Brazil http://creativecommons.org/licenses/by-nc-nd/3.0/br/ |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Planta Daninha |
publisher.none.fl_str_mv |
Planta Daninha |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional do INPA instname:Instituto Nacional de Pesquisas da Amazônia (INPA) instacron:INPA |
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Instituto Nacional de Pesquisas da Amazônia (INPA) |
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INPA |
institution |
INPA |
reponame_str |
Repositório Institucional do INPA |
collection |
Repositório Institucional do INPA |
bitstream.url.fl_str_mv |
https://repositorio.inpa.gov.br/bitstream/1/16165/1/artigo-inpa.pdf |
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Repositório Institucional do INPA - Instituto Nacional de Pesquisas da Amazônia (INPA) |
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