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 | Acesso ao texto completo restrito à biblioteca da Embrapa Meio Ambiente. Para informações adicionais entre em contato com cnpma.biblioteca@embrapa.br. |
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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: |
15/10/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
DORES, E. F. G. C.; SPADOTTO, C. A.; WEBER, O. L. S.; CARBO, L.; VECCHIATO, A. B.; PINTO, A. A. |
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Afiliação: |
Eliana F. G. C.Dores, UFMT; CLAUDIO APARECIDO SPADOTTO, SGTE; Oscarlina L. S.Weber, UFMT; Leandro Carbo, UNESP-Campus de Araraquara; Antonio B. Vecchiato, UFMT; Alicio A. Pinto, UFMT. |
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Título: |
Environmental behaviour of metolachlor and diuron in a tropical soil in the Central Region of Brazil. |
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Ano de publicação: |
2008 |
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Fonte/Imprenta: |
Water, Air and Soil Pollution, v. 197, p. 175-183, 2009. |
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Idioma: |
Inglês |
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Conteúdo: |
The environmental behaviour of metolachlor and diuron was studied in the Central-western region of Brazil, by means of a field study where six experimental plots were installed. The soil was classified as a Latosol, and the soil horizons were characterized. Sorption of metolachlor and diuron was evaluated in laboratory batch experiments. Metolachlor and diuron were applied to the experimental plots on uncultivated soil in October 2003. From this date to March 2004, the following processes were studied: leaching, runoff and dissipation in top soil. K oc of metolachlor varied from 179 to 264 mL g-1 in the soil horizons. K oc of diuron in the Ap horizon was 917 mL g-1, decreasing significantly in the deeper horizons. Field dissipation half-lives of metolachlor and diuron were 18 and 15 days, respectively. In percolated water, metolachlor was detected in concentrations ranging from 0.02 to 2.84 ?g L-1. In runoff water and sediment, metolachlor was detected in decreasing concentrations throughout the period of study. Losses of 0.02% and 0.54% of the applied amount by leaching and runoff, respectively, were observed confirming the high mobility of this herbicide in the environment. In percolated water, diuron was detected with low frequency but in relatively high concentrations (up to 6.29 ?g L-1). In runoff water and soil, diuron was detected in decreasing concentrations until 70 days after application, totalizing 13.9% during the whole sampling period. These results show the importance of practices to reduce runoff avoiding surface water contamination by these pesticides, particularly diuron. MenosThe environmental behaviour of metolachlor and diuron was studied in the Central-western region of Brazil, by means of a field study where six experimental plots were installed. The soil was classified as a Latosol, and the soil horizons were characterized. Sorption of metolachlor and diuron was evaluated in laboratory batch experiments. Metolachlor and diuron were applied to the experimental plots on uncultivated soil in October 2003. From this date to March 2004, the following processes were studied: leaching, runoff and dissipation in top soil. K oc of metolachlor varied from 179 to 264 mL g-1 in the soil horizons. K oc of diuron in the Ap horizon was 917 mL g-1, decreasing significantly in the deeper horizons. Field dissipation half-lives of metolachlor and diuron were 18 and 15 days, respectively. In percolated water, metolachlor was detected in concentrations ranging from 0.02 to 2.84 ?g L-1. In runoff water and sediment, metolachlor was detected in decreasing concentrations throughout the period of study. Losses of 0.02% and 0.54% of the applied amount by leaching and runoff, respectively, were observed confirming the high mobility of this herbicide in the environment. In percolated water, diuron was detected with low frequency but in relatively high concentrations (up to 6.29 ?g L-1). In runoff water and soil, diuron was detected in decreasing concentrations until 70 days after application, totalizing 13.9% during the whole sampling period. These results show the imp... Mostrar Tudo |
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Thesagro: |
Agrotóxico; Água; Poluição Ambiental. |
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Categoria do assunto: |
W Química e Física |
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Marc: |
LEADER 02263naa a2200217 a 4500
001 1015592
005 2024-10-15
008 2008 bl uuuu u00u1 u #d
100 1 $aDORES, E. F. G. C.
245 $aEnvironmental behaviour of metolachlor and diuron in a tropical soil in the Central Region of Brazil.$h[electronic resource]
260 $c2008
520 $aThe environmental behaviour of metolachlor and diuron was studied in the Central-western region of Brazil, by means of a field study where six experimental plots were installed. The soil was classified as a Latosol, and the soil horizons were characterized. Sorption of metolachlor and diuron was evaluated in laboratory batch experiments. Metolachlor and diuron were applied to the experimental plots on uncultivated soil in October 2003. From this date to March 2004, the following processes were studied: leaching, runoff and dissipation in top soil. K oc of metolachlor varied from 179 to 264 mL g-1 in the soil horizons. K oc of diuron in the Ap horizon was 917 mL g-1, decreasing significantly in the deeper horizons. Field dissipation half-lives of metolachlor and diuron were 18 and 15 days, respectively. In percolated water, metolachlor was detected in concentrations ranging from 0.02 to 2.84 ?g L-1. In runoff water and sediment, metolachlor was detected in decreasing concentrations throughout the period of study. Losses of 0.02% and 0.54% of the applied amount by leaching and runoff, respectively, were observed confirming the high mobility of this herbicide in the environment. In percolated water, diuron was detected with low frequency but in relatively high concentrations (up to 6.29 ?g L-1). In runoff water and soil, diuron was detected in decreasing concentrations until 70 days after application, totalizing 13.9% during the whole sampling period. These results show the importance of practices to reduce runoff avoiding surface water contamination by these pesticides, particularly diuron.
650 $aAgrotóxico
650 $aÁgua
650 $aPoluição Ambiental
700 1 $aSPADOTTO, C. A.
700 1 $aWEBER, O. L. S.
700 1 $aCARBO, L.
700 1 $aVECCHIATO, A. B.
700 1 $aPINTO, A. A.
773 $tWater, Air and Soil Pollution$gv. 197, p. 175-183, 2009.
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Registro original: |
Embrapa Meio Ambiente (CNPMA) |
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| Registros recuperados : 8 | |
| 1. |  | ANDRADE, A. L.; VAZ, C. M. P. Aplicação do modelo de similaridade de Arya e Paris para a estimativa da curva de retenção da água no solo e a água disponível em solos de características diferentes. In: REUNIÃO DA SBPC, 67., 2015, São Carlos, SP. Anais/Resumos... São Carlos, SP: Sociedade brasileira para o progresso da ciência, 2015. 1 p. O resumo apresentado faz parte dos anais da JORNADA CIENTÍFICA - EMBRAPA SÃO CARLOS, 7., 2015, São Carlos, SP.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Instrumentação. |
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| 2. | | TEIXEIRA, E. F.; ANDRADE, A. L.; GALBIERI, R.; CRESTANA, S.; VAZ, C. M. P. Influência das propriedades físicas do solo na produtividade do algodão no Estado do Mato Grosso. In: JORNADA CIENTÍFICA - EMBRAPA SÃO CARLOS, 4., 2012, São Carlos, SP. Anais... São Carlos: Embrapa Instrumentação: Embrapa Pecuária Sudeste, 2012. p. 109. Editores técnicos: João de Mendonça Naime, Lucimara Aparecida Forato, Maria Alice Martins, Ladislau Marcelino Rabello, Rubens Bernardes Filho. (Embrapa Instrumentação. Documentos, 56)| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Instrumentação. |
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| 5. | | VAZ, C. M. P.; CRESTANA, S.; GALBIERI, R.; SILVA, J. F. V.; RESENDE, J. M.; ANDRADE, A. L. Soil Physical Attributes Affecting Cotton Productivity and Nematode Population in Mato Grosso State, Brazil. In:INTERNATIONAL ANNUAL MEETINGS, 2016, Phoenix, AZ. [Abstract...], Madison: ASA/CSSA/SSSA, 2016. paper 102945| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Instrumentação. |
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| 6. | | ANDRADE, A. L.; TEIXEIRA, E. F.; BOMFIM, P. F.; BERNARDI, A. C. de C.; VAZ, C. M. P. Caracterização da variabilidade espacial de parâmetros físicos do solo em área de pivô e correlações com a variabilidade da produtividade do milho. In: JORNADA CIENTÍFICA - EMBRAPA SÃO CARLOS, 4., 2012, São Carlos, SP. Anais... São Carlos: Embrapa Instrumentação: Embrapa Pecuária Sudeste, 2012. p. 108. (Embrapa Instrumentação. Documentos, 56).| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Instrumentação; Embrapa Pecuária Sudeste. |
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| 7. | | ANDRADE, A. L.; TEIXEIRA, E. F.; GALBIERI, R.; SILVA, J. F. V.; CRESTANA, S.; VAZ, C. M. P. O uso do analisador granulométrico de raios gama e modelo de arya e paris para obtenção da água disponível em solos sob plantio de algodão no Mato Grosso. In: SIMPÓSIO NACIONAL DE INSTRUMENTAÇÃO AGROPECUÁRIA, 2014, São Carlos, SP Anais do SIAGRO: ciência, inovação e mercado 2014. São Carlos, SP: Embrapa Instrumentação, 2014. p. 581-584. Editores: Carlos Manoel Pedro Vaz, Débora Marcondes Bastos Pereira Milori, Silvio Crestana.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Instrumentação. |
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| 8. | | VAZ, C. M. P.; INAMASU, R. Y.; SANTOS, K. E. L.; BETTIOL, G. M.; ANDRADE, A. L.; BERNARDI, A. C. C. Variabilidade espacial de parâmetros físicos do solo em área de pivô e correlações com a produtividade do milho para silagem. In: SIMPÓSIO NACIONAL DE INSTRUMENTAÇÃO AGROPECUÁRIA, 2014, São Carlos, SP Anais do SIAGRO: ciência, inovação e mercado 2014. São Carlos, SP: Embrapa Instrumentação, 2014. p. 81-84. Editores: Carlos Manoel Pedro Vaz, Débora Marcondes Bastos Pereira Milori, Silvio Crestana.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Instrumentação; Embrapa Pecuária Sudeste. |
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| Registros recuperados : 8 | |
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