Effect of repeated application of 14C-carbaryl and of addition of glucose and cellulose to soil samples

Detalhes bibliográficos
Autor(a) principal: Hirata, Rodobiko
Data de Publicação: 2014
Outros Autores: Luchini, Luiz Carlos, Mesquita, Terezinha Bonanho, Rüegg, Elza Flores
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/15327
Resumo: The behaviour of the insecticide carbaryl was studied in samples of Gley Humic and Red-Yellow Latosol soils by means of radiometric techniques. In the Red-Yellow LatosoI low in organic matter (0.36%) two carbon sources - glucose and cellulose, and a mixture of glucose plus cellulose were added. Glucose increased degradation of carbaryl, but at concentration of 0.1 mg/g of soil its effect was about the same as cellulose at concentration a hundred times higher (10 mg/g of soil). Addition of cellulose to soil samples containing glucose did not enhance the rate of degradation of carbaryl, indicating that microbial populations preferably use nutrient sources readily metabolized. Repeated applications of carbaryl in Gley Humic and Red-Yellow Latosol highly increased the rate of degradation, probably due to a rapid increase in the number of microorganisms by using the pesticide as substrate.
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spelling Effect of repeated application of 14C-carbaryl and of addition of glucose and cellulose to soil samplesComportamento de 14C-carbaril em solos, influenciado por aplicações sucessivas do inseticida e por adições de glicose e celulosecarbon sources; radiometric techniquesfontes de carbono; técnicas radiométricasThe behaviour of the insecticide carbaryl was studied in samples of Gley Humic and Red-Yellow Latosol soils by means of radiometric techniques. In the Red-Yellow LatosoI low in organic matter (0.36%) two carbon sources - glucose and cellulose, and a mixture of glucose plus cellulose were added. Glucose increased degradation of carbaryl, but at concentration of 0.1 mg/g of soil its effect was about the same as cellulose at concentration a hundred times higher (10 mg/g of soil). Addition of cellulose to soil samples containing glucose did not enhance the rate of degradation of carbaryl, indicating that microbial populations preferably use nutrient sources readily metabolized. Repeated applications of carbaryl in Gley Humic and Red-Yellow Latosol highly increased the rate of degradation, probably due to a rapid increase in the number of microorganisms by using the pesticide as substrate.Estudou-se o comportamento do inseticida carbaril nos solos Glei Húmico e Latossolo Vermelho-Amarelo, utilizando-se técnicas radiométricas. No Latossolo Vermelho-Amarelo, com baixo conteúdo de matéria orgânica (0,36%), foram adicionadas duas fontes de carbono, glicose e celulose e mistura de glicose mais celulose. A glicose proporcionou maior degradação do carbaril; porém, quando sua concentração foi de 0,1 mg/g de solo, seu efeito foi praticamente igual ao da celulose em concentração 100 vezes maior (10 mg/g solo). A adição de celulose às amostras deste solo contendo glicose não trouxe praticamente nenhum aumento na taxa de degradação do carbaril. Este fato mostra que a população microbiana ataca preferencialmente a fonte de nutriente mais facilmente metabolizada. Nos solos Glei Húmico e Latossolo Vermelho-Amarelo, repetidas adições de carbaril aumentaram acentuadamente a sua velocidade de degradação, em virtude, provavelmente, do rápido crescimento da população microbiana favorecido pela utilização do pesticida como substrato.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraHirata, RodobikoLuchini, Luiz CarlosMesquita, Terezinha BonanhoRüegg, Elza Flores2014-04-16info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/15327Pesquisa Agropecuaria Brasileira; v.19, n.1, jan. 1984; 79-84Pesquisa Agropecuária Brasileira; v.19, n.1, jan. 1984; 79-841678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/15327/9178info:eu-repo/semantics/openAccess2014-04-16T19:09:18Zoai:ojs.seer.sct.embrapa.br:article/15327Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-04-16T19:09:18Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Effect of repeated application of 14C-carbaryl and of addition of glucose and cellulose to soil samples
Comportamento de 14C-carbaril em solos, influenciado por aplicações sucessivas do inseticida e por adições de glicose e celulose
title Effect of repeated application of 14C-carbaryl and of addition of glucose and cellulose to soil samples
spellingShingle Effect of repeated application of 14C-carbaryl and of addition of glucose and cellulose to soil samples
Hirata, Rodobiko
carbon sources; radiometric techniques
fontes de carbono; técnicas radiométricas
title_short Effect of repeated application of 14C-carbaryl and of addition of glucose and cellulose to soil samples
title_full Effect of repeated application of 14C-carbaryl and of addition of glucose and cellulose to soil samples
title_fullStr Effect of repeated application of 14C-carbaryl and of addition of glucose and cellulose to soil samples
title_full_unstemmed Effect of repeated application of 14C-carbaryl and of addition of glucose and cellulose to soil samples
title_sort Effect of repeated application of 14C-carbaryl and of addition of glucose and cellulose to soil samples
author Hirata, Rodobiko
author_facet Hirata, Rodobiko
Luchini, Luiz Carlos
Mesquita, Terezinha Bonanho
Rüegg, Elza Flores
author_role author
author2 Luchini, Luiz Carlos
Mesquita, Terezinha Bonanho
Rüegg, Elza Flores
author2_role author
author
author
dc.contributor.none.fl_str_mv

dc.contributor.author.fl_str_mv Hirata, Rodobiko
Luchini, Luiz Carlos
Mesquita, Terezinha Bonanho
Rüegg, Elza Flores
dc.subject.por.fl_str_mv carbon sources; radiometric techniques
fontes de carbono; técnicas radiométricas
topic carbon sources; radiometric techniques
fontes de carbono; técnicas radiométricas
description The behaviour of the insecticide carbaryl was studied in samples of Gley Humic and Red-Yellow Latosol soils by means of radiometric techniques. In the Red-Yellow LatosoI low in organic matter (0.36%) two carbon sources - glucose and cellulose, and a mixture of glucose plus cellulose were added. Glucose increased degradation of carbaryl, but at concentration of 0.1 mg/g of soil its effect was about the same as cellulose at concentration a hundred times higher (10 mg/g of soil). Addition of cellulose to soil samples containing glucose did not enhance the rate of degradation of carbaryl, indicating that microbial populations preferably use nutrient sources readily metabolized. Repeated applications of carbaryl in Gley Humic and Red-Yellow Latosol highly increased the rate of degradation, probably due to a rapid increase in the number of microorganisms by using the pesticide as substrate.
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/15327
url https://seer.sct.embrapa.br/index.php/pab/article/view/15327
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/15327/9178
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.19, n.1, jan. 1984; 79-84
Pesquisa Agropecuária Brasileira; v.19, n.1, jan. 1984; 79-84
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_ 1793416707757309952

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