Influence of repeated applications of glyphosate on its persistence and soil bioactivity

Detalhes bibliográficos
Autor(a) principal: Andréa, Mara Mercedes de
Data de Publicação: 2003
Outros Autores: Peres, Terezinha Bonanho, Luchini, Luiz Carlos, Bazarin, Sheila, Papini, Solange, Matallo, Marcus Barifouse, Savoy, Vera Lúcia Tedeschi
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Pesquisa Agropecuária Brasileira (Online)
Texto Completo: https://seer.sct.embrapa.br/index.php/pab/article/view/6708
Resumo: Pesticide degradation studies are essential to evaluate its impact in the environment and on non-target organisms. The effect of repeated soil applications of the herbicide glyphosate on its dissipation and on soil microorganisms was studied by radiometric and microbial techniques. Results indicated fast dissipation of the [14C]-glyphosate or [14C]metabolites extractable residues (half-life of 0.92±0.29 month), but increasing half-lives of total mineralization ranging from 2.2 to 3.4 months as the number of applications increased from 1 to 4. No significant correlation was found between 14CO2 production and dehydrogenase activity.
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spelling Influence of repeated applications of glyphosate on its persistence and soil bioactivityInfluência de repetidas aplicações de glifosato na sua persistência e na bioatividade do solopesticide residues; mineralization; dehydrogenases; soil treatmentresíduo de pesticida; mineralização; desidrogenase; tratamento do soloPesticide degradation studies are essential to evaluate its impact in the environment and on non-target organisms. The effect of repeated soil applications of the herbicide glyphosate on its dissipation and on soil microorganisms was studied by radiometric and microbial techniques. Results indicated fast dissipation of the [14C]-glyphosate or [14C]metabolites extractable residues (half-life of 0.92±0.29 month), but increasing half-lives of total mineralization ranging from 2.2 to 3.4 months as the number of applications increased from 1 to 4. No significant correlation was found between 14CO2 production and dehydrogenase activity.Estudos sobre degradação de pesticidas são essenciais à avaliação do impacto que causam no ambiente e em organismos não-alvo. Avaliou-se o efeito de repetidas aplicações do herbicida glifosato em solo na sua dissipação e em microrganismos do solo, por técnicas radiométricas e microbianas. Os resultados indicaram dissipação rápida dos resíduos extraíveis de glifosato marcado com 14C ou de metabólitos contendo 14C (meia-vida de 0,92±0,29 mês), mas meia-vida crescente de 2,2 a 3,4 meses para mineralização total, de acordo com o aumento de 1 a 4 aplicações. Não foi encontrada correlação estatisticamente significativa entre a atividade da desidrogenase e a produção de 14CO2.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraAndréa, Mara Mercedes dePeres, Terezinha BonanhoLuchini, Luiz CarlosBazarin, SheilaPapini, SolangeMatallo, Marcus BarifouseSavoy, Vera Lúcia Tedeschi2003-11-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/6708Pesquisa Agropecuaria Brasileira; v.38, n.11, nov. 2003; 1329-1335Pesquisa Agropecuária Brasileira; v.38, n.11, nov. 2003; 1329-13351678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAenghttps://seer.sct.embrapa.br/index.php/pab/article/view/6708/3765info:eu-repo/semantics/openAccess2010-08-20T17:04:30Zoai:ojs.seer.sct.embrapa.br:article/6708Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2010-08-20T17:04:30Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Influence of repeated applications of glyphosate on its persistence and soil bioactivity
Influência de repetidas aplicações de glifosato na sua persistência e na bioatividade do solo
title Influence of repeated applications of glyphosate on its persistence and soil bioactivity
spellingShingle Influence of repeated applications of glyphosate on its persistence and soil bioactivity
Andréa, Mara Mercedes de
pesticide residues; mineralization; dehydrogenases; soil treatment
resíduo de pesticida; mineralização; desidrogenase; tratamento do solo
title_short Influence of repeated applications of glyphosate on its persistence and soil bioactivity
title_full Influence of repeated applications of glyphosate on its persistence and soil bioactivity
title_fullStr Influence of repeated applications of glyphosate on its persistence and soil bioactivity
title_full_unstemmed Influence of repeated applications of glyphosate on its persistence and soil bioactivity
title_sort Influence of repeated applications of glyphosate on its persistence and soil bioactivity
author Andréa, Mara Mercedes de
author_facet Andréa, Mara Mercedes de
Peres, Terezinha Bonanho
Luchini, Luiz Carlos
Bazarin, Sheila
Papini, Solange
Matallo, Marcus Barifouse
Savoy, Vera Lúcia Tedeschi
author_role author
author2 Peres, Terezinha Bonanho
Luchini, Luiz Carlos
Bazarin, Sheila
Papini, Solange
Matallo, Marcus Barifouse
Savoy, Vera Lúcia Tedeschi
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv

dc.contributor.author.fl_str_mv Andréa, Mara Mercedes de
Peres, Terezinha Bonanho
Luchini, Luiz Carlos
Bazarin, Sheila
Papini, Solange
Matallo, Marcus Barifouse
Savoy, Vera Lúcia Tedeschi
dc.subject.por.fl_str_mv pesticide residues; mineralization; dehydrogenases; soil treatment
resíduo de pesticida; mineralização; desidrogenase; tratamento do solo
topic pesticide residues; mineralization; dehydrogenases; soil treatment
resíduo de pesticida; mineralização; desidrogenase; tratamento do solo
description Pesticide degradation studies are essential to evaluate its impact in the environment and on non-target organisms. The effect of repeated soil applications of the herbicide glyphosate on its dissipation and on soil microorganisms was studied by radiometric and microbial techniques. Results indicated fast dissipation of the [14C]-glyphosate or [14C]metabolites extractable residues (half-life of 0.92±0.29 month), but increasing half-lives of total mineralization ranging from 2.2 to 3.4 months as the number of applications increased from 1 to 4. No significant correlation was found between 14CO2 production and dehydrogenase activity.
publishDate 2003
dc.date.none.fl_str_mv 2003-11-01
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/6708
url https://seer.sct.embrapa.br/index.php/pab/article/view/6708
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://seer.sct.embrapa.br/index.php/pab/article/view/6708/3765
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.38, n.11, nov. 2003; 1329-1335
Pesquisa Agropecuária Brasileira; v.38, n.11, nov. 2003; 1329-1335
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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