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Registro Completo |
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
08/02/2018 |
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Data da última atualização: |
08/02/2018 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
VAZ, L. R. L.; BARIZON, R. R. M.; QUEIROZ, S. C. do N. de; REGITANO, J. B. |
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Afiliação: |
L. R. L. VAZ; ROBSON ROLLAND MONTICELLI BARIZON, CNPMA; SONIA CLAUDIA DO N DE QUEIROZ, CNPMA; J. B. REGITANO. |
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Título: |
Hexazinone and diuron runoff in green cane systems. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
IN: SETAC LATIN AMERICA, 12., 2017, Santos. Biennial Meeting. Santos: Sociedade Brasileira de Ecotoxicologia, 2017. Ref. SP042. p. 66. |
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Idioma: |
Inglês |
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Conteúdo: |
Sugarcane is a major crop in Brazil and of great importance to the world. Higher yields implicate in higher use of pesticides, such as diuron and hexazinone. The adoption of green cane system, in which the straw is kept in the soil surface after mechanical harvesting, has changed the environmental behavior of theses herbicides. Therefore, the goal of this research was to evaluate runoff losses of diuron and hexazinone in green cane systems. The 3x2x2 (12 treatments) factorial experiment was performed in a randomized block with 4 replicates. The factors were i) 3 levels of sugarcane straw (0, 50% and 100%, based on a dose of 14 t ha-1); ii) 2 levels of initial soil moisture (10 and 18% VWC), and iii) 2 rainfall periods (0 and 3 d after herbicides application). A rainfall simulator was adjusted to simulate an 80 mm h-1 rainfall event for one and a half hour (120 mm) over plots of 1 m2. A commercial product containing diuron and hexazinone was used at rate of 3 kg ha-1 dissolved in 700 L ha-1, according to label recommendations. The amounts of water and sediments were registered and herbicides concentrations analyzed by UPLC. Herbicides attached to the sediments were estimated according to sorption data from the literature. The results were evaluated by ANOVA and means compared by Tukey test (p< 0.05). Sugarcane straw decreased water, sediments, and diuron losses by runoff, but did not affect hexazinone losses. In other words, crop residues cannot prevent losses of highly soluble molecules, such as hexazinone. Greater herbicides losses were observed in the aqueous phase, even for the control treatment (without straw), since straw reduces the amounts of detached sediments. However, no difference was observed between the two levels of straw (50 and 100%), meaning that 7 t ha-1 is sufficient for mitigating water, sediments, and diuron losses by runoff. Higher soil moisture (18 versus 10%) resulted in higher herbicides runoff. Yet, rainfall period did not affect herbicide losses, indicating that 3 days were not long enough for enhancing these herbicides dissipation or sorption. MenosSugarcane is a major crop in Brazil and of great importance to the world. Higher yields implicate in higher use of pesticides, such as diuron and hexazinone. The adoption of green cane system, in which the straw is kept in the soil surface after mechanical harvesting, has changed the environmental behavior of theses herbicides. Therefore, the goal of this research was to evaluate runoff losses of diuron and hexazinone in green cane systems. The 3x2x2 (12 treatments) factorial experiment was performed in a randomized block with 4 replicates. The factors were i) 3 levels of sugarcane straw (0, 50% and 100%, based on a dose of 14 t ha-1); ii) 2 levels of initial soil moisture (10 and 18% VWC), and iii) 2 rainfall periods (0 and 3 d after herbicides application). A rainfall simulator was adjusted to simulate an 80 mm h-1 rainfall event for one and a half hour (120 mm) over plots of 1 m2. A commercial product containing diuron and hexazinone was used at rate of 3 kg ha-1 dissolved in 700 L ha-1, according to label recommendations. The amounts of water and sediments were registered and herbicides concentrations analyzed by UPLC. Herbicides attached to the sediments were estimated according to sorption data from the literature. The results were evaluated by ANOVA and means compared by Tukey test (p< 0.05). Sugarcane straw decreased water, sediments, and diuron losses by runoff, but did not affect hexazinone losses. In other words, crop residues cannot prevent losses of highly solub... Mostrar Tudo |
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Thesaurus Nal: |
Diuron; Hexazinone. |
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Categoria do assunto: |
W Química e Física |
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Marc: |
LEADER 02697naa a2200181 a 4500
001 2087440
005 2018-02-08
008 2017 bl --- 0-- u #d
100 1 $aVAZ, L. R. L.
245 $aHexazinone and diuron runoff in green cane systems.$h[electronic resource]
260 $c2017
520 $aSugarcane is a major crop in Brazil and of great importance to the world. Higher yields implicate in higher use of pesticides, such as diuron and hexazinone. The adoption of green cane system, in which the straw is kept in the soil surface after mechanical harvesting, has changed the environmental behavior of theses herbicides. Therefore, the goal of this research was to evaluate runoff losses of diuron and hexazinone in green cane systems. The 3x2x2 (12 treatments) factorial experiment was performed in a randomized block with 4 replicates. The factors were i) 3 levels of sugarcane straw (0, 50% and 100%, based on a dose of 14 t ha-1); ii) 2 levels of initial soil moisture (10 and 18% VWC), and iii) 2 rainfall periods (0 and 3 d after herbicides application). A rainfall simulator was adjusted to simulate an 80 mm h-1 rainfall event for one and a half hour (120 mm) over plots of 1 m2. A commercial product containing diuron and hexazinone was used at rate of 3 kg ha-1 dissolved in 700 L ha-1, according to label recommendations. The amounts of water and sediments were registered and herbicides concentrations analyzed by UPLC. Herbicides attached to the sediments were estimated according to sorption data from the literature. The results were evaluated by ANOVA and means compared by Tukey test (p< 0.05). Sugarcane straw decreased water, sediments, and diuron losses by runoff, but did not affect hexazinone losses. In other words, crop residues cannot prevent losses of highly soluble molecules, such as hexazinone. Greater herbicides losses were observed in the aqueous phase, even for the control treatment (without straw), since straw reduces the amounts of detached sediments. However, no difference was observed between the two levels of straw (50 and 100%), meaning that 7 t ha-1 is sufficient for mitigating water, sediments, and diuron losses by runoff. Higher soil moisture (18 versus 10%) resulted in higher herbicides runoff. Yet, rainfall period did not affect herbicide losses, indicating that 3 days were not long enough for enhancing these herbicides dissipation or sorption.
650 $aDiuron
650 $aHexazinone
700 1 $aBARIZON, R. R. M.
700 1 $aQUEIROZ, S. C. do N. de
700 1 $aREGITANO, J. B.
773 $tIN: SETAC LATIN AMERICA, 12., 2017, Santos. Biennial Meeting. Santos: Sociedade Brasileira de Ecotoxicologia, 2017. Ref. SP042. p. 66.
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Registro original: |
Embrapa Meio Ambiente (CNPMA) |
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| Registros recuperados : 32 | |
| 10. |  | CERDEIRA, A. L.; MORANDI, M. A. B.; BARIZON, R. R. M. Manejo responsável de produtos químicos. In: PALHARES, J. C. P.; OLIVEIRA, V. B. V.; FREIRE JUNIOR, M.; CERDEIRA, A. L.; PRADO, H. A. do (Ed.). Consumo e produção responsáveis: contribuições da Embrapa. Brasília, DF: Embrapa, 2018. E-book. (Objetivos de Desenvolvimento Sustentável, 12). Cap. 5. p. 58-69| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Meio Ambiente. |
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| 11. | | BARIZON, R. R. M.; FERRACINI, V. L.; FIGUEIREDO, R. de O. Pesticidas em águas superficiais da bacia do rio Camanducaia - MG e SP. In: RODRIGUES, V. A.; SIQUEIRA, H. E.; OLIVEIRA, P. J. D. de.; PINHEIRO, L. Z.; BUCCI, L. A. (Ed.). Biomas brasileiros: conservação da biodiversidade, solo, floresta e água. Botucatu: FEPAF, 2017. Edição dos anais do 5º Simpósio Internacional de Microbacias Hidrográficas, realizado em Botucatu, em junho de 2017. p. 178-182| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Meio Ambiente. |
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| 12. | | PICOLI, J. F.; BARIZON, R. R. M.; BIRKVED, M.; MATSUURA, M. I. da S. F. Modeling of pesticide emissions for life cycle assessment of agricultural products. In: CONGRESSO BRASILEIRO SOBRE GESTÃO DO CICLO DE VIDA, 6., 2018, Brasília, DF. Anais... Brasília, DF: Ibict, 2018. p. 193-198.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Meio Ambiente. |
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| 13. | | VAZ, L. R. L.; BARIZON, R. R. M.; SOUZA, A. J. de; REGITANO, J. B. Runoff of hexazinone and diuron in green cane systems. Water, Air, & Soil Pollution, v. 232, n. 3, article 116, 2021.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
| Biblioteca(s): Embrapa Meio Ambiente. |
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| 15. | | RODRIGUES, G. S.; STUCHI, E. S.; ALBUQUERQUE, A. F. A. de; BARIZON, R. R. M.; GIRARDI, E. A. Analysis of environmental impact indicators, best management practices and technology adoption for HLB control: the view of horchard technical managers. In: INTERNATIONAL CITRUS CONGRESS, 13., 2016, Foz do Iguaçu. Sustainable citriculture: the role of applied knowledge: abstract book. Campinas: IAC; Londrina: IAPAR, 2016. Resumo S6-254. p. 84-85.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Meio Ambiente. |
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| 17. | | CUNHA, J. P. A. R. da; BARIZON, R. R. M.; FERRACINI, V. L.; ASSALIN, M. R.; ANTUNIASSI, U. R. Spray drift and pest control from aerial applications on soybeans. Engenharia Agrícola, Jaboticabal, v. 37, n. 3, p. 493-501, 2017.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
| Biblioteca(s): Embrapa Meio Ambiente. |
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| 19. | | BARIZON, R. R. M.; FIGUEIREDO, R. de O.; SOUZA, D. R. C. de; REGITANO, J. B.; FERRACINI, V. L. Pesticides in the surface waters of the Camanducaia River watershed, Brazil. Journal of Environmental Science and Health, Part B, New York, p. 1-10, 2019.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Meio Ambiente. |
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| 20. | | CHISTE, B. M.; TAKESHITA, N. A.; MATIOLLI, C. C.; JONSSON, C. M.; BARIZON, R. R. M.; HISANO, H. Risk assessment and acute toxicological effects of atrazine on Nile tilapia larvae after stress. Journal of Environmental Science and Health, Part B, v. 56, n. 1, p. 23-29, 2020.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Meio Ambiente. |
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| Registros recuperados : 32 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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