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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 : 15 | |
| 7. |  | FERNANDES, F. B.; VELOSO, R. F.; BATISTA, M. da S.; CUNHA, M. A. D. da. Sistema de informacoes gerenciais no ambito de uma fazenda familiar. In: ENCONTRO DE JOVENS TALENTOS DA EMBRAPA CERRADOS: CONSTRUINDO O CONHECIMENTO DO FUTURO, 1., 2000, Planaltina, DF. Resumos. Planaltina: Embrapa Cerrados, 2000. p.16. (Embrapa Cerrados. Documentos, 14).| Biblioteca(s): Embrapa Cerrados. |
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| 8. | | VELOSO, R. F.; MALAQUIAS, J. V.; BARIONI, L. G.; GOMES, E. G.; DANTAS, O. D.; FERNANDES, F. B. Modelo bioeconômico para avaliações ex-ante de investimentos e planejamento forrageiro em sistemas tradicionais de produção de bovinos de corte no cerrado. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 49., 2012, Brasília. A produção animal no mundo em transformação: anais. Brasília, DF: SBZ, 2012. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Cerrados. |
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| 9. | | VELOSO, R. F.; FERNANDES, F. B.; BARIONI, L. G.; CHAIB FILHO, H.; SILVA, A. P.; COLOCA, A. A. Tomada de decisões gerenciais no âmbito de duas fazendas familiares no sul goiano. Cadernos de Ciência & Tecnologia, Brasília, v. 20, nº 2, p. 325-352, maio/ago. 2003.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 10. | | VELOSO, R. F.; BARIONI, L. G.; GOMES, E. G.; FERNANDES, F. B.; SILVA, A. P.; CHAIB FILHO, H.; COLOCA, A. Sustentabilidade econômica da produção de leite bovino em pequena escala no sul de Goiás: uso da programação matemática para uma avaliação ex-ante. Planaltina, DF: Embrapa Cerrados, 2006. 34 p. (Embrapa Cerrados. Boletim de pesquisa e desenvolvimento, 175).| Tipo: Boletim de Pesquisa e Desenvolvimento |
| Biblioteca(s): Embrapa Cerrados. |
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| 11. | | VELOSO, R. F.; FERNANDES, F. B.; ALMEIDA, P. H. de; CUNHA, M. A. D.; BOATO, F.; RIBEIRO, A. C. F.; MARTINS, M. C.; COLOCA, A. A. Avaliação técnica e financeira da atividade de produção de leite em uma fazenda familiar. Planaltina: Embrapa Cerrados, 2001. 59 p. (Embrapa Cerrados. Boletim de Pesquisa e Desenvolvimento, 22).| Biblioteca(s): Embrapa Cerrados. |
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| 12. | | VELOSO, R. F.; GOMES, E. G.; BARIONI, L. G.; FERNANDES, F. B.; CHAIB FILHO, H.; OLIVEIRA, A. J. de; SILVA, A. P. da; COLOCA, A. Programação matemática para avaliação de viabilidade econômica da produção de leite bovino em pequena escala no Sul de Goiás. Engevista, v. 9, n. 1. p. 57-81, jun. 2007.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: Internacional - A |
| Biblioteca(s): Embrapa Cerrados. |
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| 13. | | VELOSO, R. F.; BARIONI, L. G.; MALAQUIAS, J. V.; GOMES, E. G.; MOREIRA, J. M. M. A. P.; SILVA, O. D. D. da; FERNANDES, F. B. Modelo bioeconômico para avaliação ex ante de investimentos em sistemas de produção de bovinos de corte a pasto no cerrado. Planaltina, DF: Embrapa Cerrados, 2010. 62 p. (Embrapa Cerrados. Boletim de Pesquisa e Desenvolvimento, 298).| Tipo: Boletim de Pesquisa e Desenvolvimento |
| Biblioteca(s): Embrapa Cerrados. |
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| 14. | | ROCHA, L. G. da; SILVA, A. C. da; ARAÚJO, M. da S.; MACHADO, L. K. M.; FERNANDES, F. B.; MACHADO, L. de O. Estudo econômico da produção de milho de silagem no Sudeste de Goiás. Cadernos de Ciência & Tecnologia, v. 38, n. 1, e26760, 2021. Título em inglês: Economic study of silage corn production in Southeastern Goiás.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 15. | | WALKER, D. W.; OLIVEIRA, J. L.; CAVALCANTE, L.; KCHOUK, S.; RIBEIRO NETO, G.; MELSEN, L. A.; FERNANDES, F. B. P.; MITROI, V.; GONDIM, R. S.; MARTINS, E. S. P. R.; VAN OEL, P. R. It's not all about drought: What “drought impacts” monitoring can reveal. International Journal of Disaster Risk Reduction, 103, 104338, 2024.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
| Biblioteca(s): Embrapa Agroindústria Tropical. |
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| Registros recuperados : 15 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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