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Registro Completo |
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
22/12/2008 |
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Data da última atualização: |
22/03/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
MARTINEZ, C. O.; SILVA, C. M. M. de S.; FAY, E. F.; MAIA, A. de H. N.; ABAKERLI, R. B.; DURRANT, L. R. |
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Afiliação: |
Camila Ortiz Martinez, Embrapa Meio Ambiente; Célia Maria Maganhotto de Souza Silva, Embrapa Meio Ambiente; ELISABETH FRANCISCONI FAY, CNPMA; ALINE DE HOLANDA NUNES MAIA, CNPMA; Rosângela Blotta Abakerli, Embrapa Meio Ambiente; Lucia R. Durrant, Faculdade de Engenharia de Alimentos-UNICAMP. |
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Título: |
Degradation of the herbicide sulfentrazone in a Brazilian typic hapludox soil. |
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Ano de publicação: |
2008 |
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Fonte/Imprenta: |
Soil Biology and Biochemistry, v. 40, n. 4, p. 853-860, 2008. |
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Idioma: |
Inglês |
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Conteúdo: |
The herbicide sulfentrazone is classified as highly mobile and persistent and this study aimed to examine degradation of this compound on a Typic Hapludox soil that is representative of regions where sulfentrazone is used in Brazil. Soil samples were supplemented with sulfentrazone (0.7 mg active ingredient (a.i.) g1 soil), and maintained at 27 1C. Soil moisture was corrected to 30%, 70%, or 100% waterholding capacity (WHC) and maintained constant until the end of the experimental period. Soils without added herbicide were used as controls. Aliquots were taken after 14, 30, 60, 120, 180, and 255 days of incubation for quantitative analysis of sulfentrazone residues by gas chromatography. Another experiment was conducted in soil samples, with and without the herbicide, at different temperatures (15, 30, and 40 1C), with moisture kept constant at 70% of WHC. The sulfentrazone residues were quantified by gas chromatography after 14, 30, 60, and 120 days of incubation. Sulfentrazone degradation was not affected by soil moisture. A significant effect was observed for the temperature factor after 120 days on herbicide degradation, which was higher at 30 1C. A half-life of 146.5 days was recorded. It was observed that the herbicide stimulated growth of actinomycetes, whereas bacterial and fungal growth was not affected. The microorganisms selected as potential sulfentrazone degraders were Rhizobium radiobacter, Ralstonia pickettii, Methylobacterium radiotolerans, Cladosporium sp., Eupenicillium sp., and Paecilomyces sp. MenosThe herbicide sulfentrazone is classified as highly mobile and persistent and this study aimed to examine degradation of this compound on a Typic Hapludox soil that is representative of regions where sulfentrazone is used in Brazil. Soil samples were supplemented with sulfentrazone (0.7 mg active ingredient (a.i.) g1 soil), and maintained at 27 1C. Soil moisture was corrected to 30%, 70%, or 100% waterholding capacity (WHC) and maintained constant until the end of the experimental period. Soils without added herbicide were used as controls. Aliquots were taken after 14, 30, 60, 120, 180, and 255 days of incubation for quantitative analysis of sulfentrazone residues by gas chromatography. Another experiment was conducted in soil samples, with and without the herbicide, at different temperatures (15, 30, and 40 1C), with moisture kept constant at 70% of WHC. The sulfentrazone residues were quantified by gas chromatography after 14, 30, 60, and 120 days of incubation. Sulfentrazone degradation was not affected by soil moisture. A significant effect was observed for the temperature factor after 120 days on herbicide degradation, which was higher at 30 1C. A half-life of 146.5 days was recorded. It was observed that the herbicide stimulated growth of actinomycetes, whereas bacterial and fungal growth was not affected. The microorganisms selected as potential sulfentrazone degraders were Rhizobium radiobacter, Ralstonia pickettii, Methylobacterium radiotolerans, Cladosporium sp., ... Mostrar Tudo |
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Palavras-Chave: |
Degradação. |
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Thesagro: |
Herbicida. |
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Categoria do assunto: |
W Química e Física |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/150415/1/2008AP-20.pdf
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Marc: |
LEADER 02143naa a2200205 a 4500
001 1015602
005 2023-03-22
008 2008 bl uuuu u00u1 u #d
100 1 $aMARTINEZ, C. O.
245 $aDegradation of the herbicide sulfentrazone in a Brazilian typic hapludox soil.$h[electronic resource]
260 $c2008
520 $aThe herbicide sulfentrazone is classified as highly mobile and persistent and this study aimed to examine degradation of this compound on a Typic Hapludox soil that is representative of regions where sulfentrazone is used in Brazil. Soil samples were supplemented with sulfentrazone (0.7 mg active ingredient (a.i.) g1 soil), and maintained at 27 1C. Soil moisture was corrected to 30%, 70%, or 100% waterholding capacity (WHC) and maintained constant until the end of the experimental period. Soils without added herbicide were used as controls. Aliquots were taken after 14, 30, 60, 120, 180, and 255 days of incubation for quantitative analysis of sulfentrazone residues by gas chromatography. Another experiment was conducted in soil samples, with and without the herbicide, at different temperatures (15, 30, and 40 1C), with moisture kept constant at 70% of WHC. The sulfentrazone residues were quantified by gas chromatography after 14, 30, 60, and 120 days of incubation. Sulfentrazone degradation was not affected by soil moisture. A significant effect was observed for the temperature factor after 120 days on herbicide degradation, which was higher at 30 1C. A half-life of 146.5 days was recorded. It was observed that the herbicide stimulated growth of actinomycetes, whereas bacterial and fungal growth was not affected. The microorganisms selected as potential sulfentrazone degraders were Rhizobium radiobacter, Ralstonia pickettii, Methylobacterium radiotolerans, Cladosporium sp., Eupenicillium sp., and Paecilomyces sp.
650 $aHerbicida
653 $aDegradação
700 1 $aSILVA, C. M. M. de S.
700 1 $aFAY, E. F.
700 1 $aMAIA, A. de H. N.
700 1 $aABAKERLI, R. B.
700 1 $aDURRANT, L. R.
773 $tSoil Biology and Biochemistry$gv. 40, n. 4, p. 853-860, 2008.
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Registro original: |
Embrapa Meio Ambiente (CNPMA) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Recursos Genéticos e Biotecnologia. Para informações adicionais entre em contato com cenargen.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Recursos Genéticos e Biotecnologia. |
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Data corrente: |
10/08/2005 |
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Data da última atualização: |
12/05/2022 |
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Autoria: |
RISSOLI, V. V.; PASSOS, A. P.; MELO, L. P.; HIRAGE, G. G. TENENTE, R. V. |
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Título: |
Avanços no ambiente Web do Laboratório de Nematologia da Embrapa/Cenargen. |
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Ano de publicação: |
2005 |
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Fonte/Imprenta: |
Fitopatologia Brasileira, Brasília, v. 30, p. 164, ago. 2005. Suplemento: CONGRESSO BRASILEIRO DE FITOPATOLOGIA, 38., 2005, Brasília, DF. |
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Idioma: |
Português |
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Palavras-Chave: |
Ambiente Web; Embrapa Recursos Genéticos e Biotecnologia; Laboratório de Nematologia. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 00667nam a2200169 a 4500
001 1185935
005 2022-05-12
008 2005 bl uuuu u00u1 u #d
100 1 $aRISSOLI, V. V.
245 $aAvanços no ambiente Web do Laboratório de Nematologia da Embrapa/Cenargen.$h[electronic resource]
260 $aFitopatologia Brasileira, Brasília, v. 30, p. 164, ago. 2005. Suplemento: CONGRESSO BRASILEIRO DE FITOPATOLOGIA, 38., 2005, Brasília, DF.$c2005
653 $aAmbiente Web
653 $aEmbrapa Recursos Genéticos e Biotecnologia
653 $aLaboratório de Nematologia
700 1 $aPASSOS, A. P.
700 1 $aMELO, L. P.
700 1 $aHIRAGE, G. G. TENENTE, R. V.
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Embrapa Recursos Genéticos e Biotecnologia (CENARGEN) |
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