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Registro Completo |
Biblioteca(s): |
Embrapa Milho e Sorgo. |
Data corrente: |
29/02/2008 |
Data da última atualização: |
25/05/2018 |
Tipo da produção científica: |
Capítulo em Livro Técnico-Científico |
Autoria: |
ALVARENGA, R. C.; CRUZ, J. C.; VIANA, J. H. M. |
Afiliação: |
RAMON COSTA ALVARENGA, CNPMS; JOSE CARLOS CRUZ, CNPMS; JOAO HERBERT MOREIRA VIANA, CNPMS. |
Título: |
Manejo de solos: preparo convencional do solo. |
Ano de publicação: |
2007 |
Fonte/Imprenta: |
In: CRUZ, J. C. (Ed.). Cultivo do milho. 3. ed. Sete Lagoas: Embrapa Milho e Sorgo, 2007. |
Série: |
(Embrapa Milho e Sorgo. Sistemas de produção, 1). |
Idioma: |
Português |
Thesagro: |
Manejo; Solo. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/69860/1/Manejo-solos-1.pdf
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Marc: |
LEADER 00540naa a2200169 a 4500 001 1490901 005 2018-05-25 008 2007 bl uuuu u00u1 u #d 100 1 $aALVARENGA, R. C. 245 $aManejo de solos$bpreparo convencional do solo.$h[electronic resource] 260 $c2007 490 $a(Embrapa Milho e Sorgo. Sistemas de produção, 1). 650 $aManejo 650 $aSolo 700 1 $aCRUZ, J. C. 700 1 $aVIANA, J. H. M. 773 $tIn: CRUZ, J. C. (Ed.). Cultivo do milho. 3. ed. Sete Lagoas: Embrapa Milho e Sorgo, 2007.
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Embrapa Milho e Sorgo (CNPMS) |
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Registro Completo
Biblioteca(s): |
Embrapa Meio Ambiente. |
Data corrente: |
14/04/1998 |
Data da última atualização: |
01/08/2018 |
Tipo da produção científica: |
Resumo em Anais de Congresso |
Autoria: |
JONSSON, C. M.; FERREIRA, C. J. A.; RIBEIRO, E. O. |
Afiliação: |
CLAUDIO MARTIN JONSSON, CNPMA. |
Título: |
Risk assessment of the herbicide clomazone in the aquatic life. |
Ano de publicação: |
1995 |
Fonte/Imprenta: |
In: CONGRESS OF INTERNATIONAL ASSOCIATION OF THEORETICAL AND APPLIED LIMNOLOGY, 26., 1995, Sao Paulo, SP. Abstracts. Sao Carlos: USP, 1995. |
Páginas: |
p.235 |
Idioma: |
Inglês |
Conteúdo: |
Clomazone (2-(2-chlorophenyl)methyl-4.4-dimethyl-3-isoxazolidinone) is a post emergence herbicide widely used in rice fields in Rio Grande do Sul (Brazil) with high activity against Gramineae at the recommended application rate(AR).of 700g/ha. The herbicide input into the aquatic ecosystem may occur by aerial application or water drainage. The presence of this chemical in the water may affect non-target organisms leading to impairments in the aquatic food chain. Studies were conducted in this work to evaluate the risk of Clomazone using the estimated mean affective concentration (EC50) for the microalgae Selenastrum capricornutum(96h), the duckweed Lemna valdiviana(96h) and the crustacean Daphnia similis(48h). The EC50 values were 11.2; 31.7 and 13.8 mg/l, respectively. According to the obtained data, and considering a direct input of the herbicide in a 10cm column water, the estimated maximum application rate that doesn't cause acute effects is 5.3 AR for S. capricornutum, 6.5 AR for D. similis and 15.0 AR for L. valdiviana. The estimated maximum application rate that doesn't cause chronic effects is 2.0 AR for D. similis, 1.6 AR for S. capricornutum and 4.5 AR for L. valviana. |
Palavras-Chave: |
Aquatic life; Herbicide clomazone. |
Thesaurus NAL: |
risk assessment. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/145773/1/1995PL004-Jonsson-Risk-3416.pdf
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Marc: |
LEADER 01810nam a2200181 a 4500 001 1012825 005 2018-08-01 008 1995 bl uuuu u00u1 u #d 100 1 $aJONSSON, C. M. 245 $aRisk assessment of the herbicide clomazone in the aquatic life.$h[electronic resource] 260 $aIn: CONGRESS OF INTERNATIONAL ASSOCIATION OF THEORETICAL AND APPLIED LIMNOLOGY, 26., 1995, Sao Paulo, SP. Abstracts. Sao Carlos: USP$c1995 300 $ap.235 520 $aClomazone (2-(2-chlorophenyl)methyl-4.4-dimethyl-3-isoxazolidinone) is a post emergence herbicide widely used in rice fields in Rio Grande do Sul (Brazil) with high activity against Gramineae at the recommended application rate(AR).of 700g/ha. The herbicide input into the aquatic ecosystem may occur by aerial application or water drainage. The presence of this chemical in the water may affect non-target organisms leading to impairments in the aquatic food chain. Studies were conducted in this work to evaluate the risk of Clomazone using the estimated mean affective concentration (EC50) for the microalgae Selenastrum capricornutum(96h), the duckweed Lemna valdiviana(96h) and the crustacean Daphnia similis(48h). The EC50 values were 11.2; 31.7 and 13.8 mg/l, respectively. According to the obtained data, and considering a direct input of the herbicide in a 10cm column water, the estimated maximum application rate that doesn't cause acute effects is 5.3 AR for S. capricornutum, 6.5 AR for D. similis and 15.0 AR for L. valdiviana. The estimated maximum application rate that doesn't cause chronic effects is 2.0 AR for D. similis, 1.6 AR for S. capricornutum and 4.5 AR for L. valviana. 650 $arisk assessment 653 $aAquatic life 653 $aHerbicide clomazone 700 1 $aFERREIRA, C. J. A. 700 1 $aRIBEIRO, E. O.
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