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Registro Completo |
Biblioteca(s): |
Embrapa Meio Ambiente. |
Data corrente: |
11/01/2008 |
Data da última atualização: |
24/02/2022 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
CERDEIRA, A. L.; SOUZA, M. D. de; QUEIROZ, S. C. do N. de; FERRACINI, V. L.; BOLONHEZI, D.; GOMES, M. A. F.; ROSA, M. A.; BALDERRAMA, O.; RAMPAZZO, P.; QUEIROZ, R. H. C.; FARJANI NETO, C.; MATALLO, M. B. |
Afiliação: |
ANTONIO LUIZ CERDEIRA, CNPMA; MANOEL DORNELAS DE SOUZA, CNPMA; SONIA CLAUDIA DO N DE QUEIROZ, CNPMA; VERA LUCIA FERRACINI, CNPMA; Denizart Bolonhezi, Instituto Agronômico de Campinas; MARCO ANTONIO FERREIRA GOMES, CNPMA; MARIA APARECIDA ROSA, CNPMA; Otávio Balderrama, Dow AgroSciences; Paulo Rampazzo, Dow AgroSciences; Regina Helena C. Queiroz, Faculdade de Farmácia-USP; Carlos Farjani Neto, DAERP; Marcus B. Matallo, Instituto Biológico. |
Título: |
Leaching and half-life of the herbicide tebuthiuron on a recharge area of Guarany aquifer in sugarcane fields in Brazil. |
Ano de publicação: |
2007 |
Fonte/Imprenta: |
Journal of Environmental Science and Health, Part B: Pesticides, Food Contaminants, and Agricultural Wastes, v. 42, p. 635-639, 2007. |
Idioma: |
Inglês |
Conteúdo: |
This study was undertaken to evaluate the degradation and mobility of the herbicide tebuthiuron (N-[5-(1,1-dimethylethyl)-1,3,4- thiadiazol-2-yl]-N,N-dimethylurea) in soil under field conditions, and its potential for leaching and groundwater contamination. A watershed, Espraiado, located over a recharge area in Brazil, was chosen for soil and water studies. At Espraiado, water samples were collected from seven wells at intervals of three months from March 2004 to June 2006 and analyzed for tebuthiuron. Other samples were taken from city wells located outside of the recharge area. To assess the potential movement to the aquifer, tebuthiuron was also applied to trial plots at the recommended label rate of 1.0 kg/ha a.i. in May of 2004, with and without sugarcane coverage, on sandy soil. Soil samples were collected during the years of 2004 and 2005, at depths intervals of 20 cm from soil surface down to 120 cm and analyzed for tebuthiuron at zero, 3, 30, 60, 90, 120, 150, 180, 240, and 300 days after application. There was no clear effect of sugarcane coverage on the tebuthiuron degradation in soils, but it moved faster into the soil where there was no cover. After 180 days there were no measurable residues in the soil, and tebuthiuron was not found below 40 cm depth in any time. Tebuthiuron had a half-life of 20 days under those conditions. No tebuthiuron residue was found in ground water samples at any sampling time. |
Palavras-Chave: |
Água subterrânea; Tebutiurom. |
Thesagro: |
Agrotóxico; Transporte. |
Categoria do assunto: |
-- |
Marc: |
LEADER 02389naa a2200301 a 4500 001 1015900 005 2022-02-24 008 2007 bl uuuu u00u1 u #d 100 1 $aCERDEIRA, A. L. 245 $aLeaching and half-life of the herbicide tebuthiuron on a recharge area of Guarany aquifer in sugarcane fields in Brazil. 260 $c2007 520 $aThis study was undertaken to evaluate the degradation and mobility of the herbicide tebuthiuron (N-[5-(1,1-dimethylethyl)-1,3,4- thiadiazol-2-yl]-N,N-dimethylurea) in soil under field conditions, and its potential for leaching and groundwater contamination. A watershed, Espraiado, located over a recharge area in Brazil, was chosen for soil and water studies. At Espraiado, water samples were collected from seven wells at intervals of three months from March 2004 to June 2006 and analyzed for tebuthiuron. Other samples were taken from city wells located outside of the recharge area. To assess the potential movement to the aquifer, tebuthiuron was also applied to trial plots at the recommended label rate of 1.0 kg/ha a.i. in May of 2004, with and without sugarcane coverage, on sandy soil. Soil samples were collected during the years of 2004 and 2005, at depths intervals of 20 cm from soil surface down to 120 cm and analyzed for tebuthiuron at zero, 3, 30, 60, 90, 120, 150, 180, 240, and 300 days after application. There was no clear effect of sugarcane coverage on the tebuthiuron degradation in soils, but it moved faster into the soil where there was no cover. After 180 days there were no measurable residues in the soil, and tebuthiuron was not found below 40 cm depth in any time. Tebuthiuron had a half-life of 20 days under those conditions. No tebuthiuron residue was found in ground water samples at any sampling time. 650 $aAgrotóxico 650 $aTransporte 653 $aÁgua subterrânea 653 $aTebutiurom 700 1 $aSOUZA, M. D. de 700 1 $aQUEIROZ, S. C. do N. de 700 1 $aFERRACINI, V. L. 700 1 $aBOLONHEZI, D. 700 1 $aGOMES, M. A. F. 700 1 $aROSA, M. A. 700 1 $aBALDERRAMA, O. 700 1 $aRAMPAZZO, P. 700 1 $aQUEIROZ, R. H. C. 700 1 $aFARJANI NETO, C. 700 1 $aMATALLO, M. B. 773 $tJournal of Environmental Science and Health, Part B: Pesticides, Food Contaminants, and Agricultural Wastes$gv. 42, p. 635-639, 2007.
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
Data corrente: |
07/06/2010 |
Data da última atualização: |
16/01/2024 |
Tipo da produção científica: |
Artigo em Anais de Congresso |
Autoria: |
MENEZES, R. I. Q.; NUNES, L. A. P. L.; ARAUJO FILHO, J. A. de; SILVA, N. L. da. |
Afiliação: |
Rony Ítalo Queirós Menezes, Graduando Universidade Estadual Vale do Acaraú (UVA), Sobral, CE; Luis Alfredo Pinheiro Leal Nunes, UVA, Sobral, CE; João Ambrósio de Araújo Filho, CNPC; NILZEMARY LIMA DA SILVA, CNPC. |
Título: |
Efeito da queimada e do pousio sobre a fauna de um solo sob caatinga no semi-árido Nordestino. |
Ano de publicação: |
2005 |
Fonte/Imprenta: |
In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 42., 2005, Goiânia. A produção animal e o foco no agronegócio: anais. Goiânia: Sociedade Brasileira de Zootecnia, 2005. 4 f. CD ROM. |
Idioma: |
Português |
Palavras-Chave: |
Brasil; Ceará; Nordeste; Semi-Árido; Sobral. |
Thesagro: |
Caatinga; Desmatamento; Fauna; Pousio; Queimada; Solo. |
Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/42261/1/AAC-Efeito-da-queimada.pdf
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Marc: |
LEADER 00881nam a2200265 a 4500 001 1854502 005 2024-01-16 008 2005 bl uuuu u00u1 u #d 100 1 $aMENEZES, R. I. Q. 245 $aEfeito da queimada e do pousio sobre a fauna de um solo sob caatinga no semi-árido Nordestino.$h[electronic resource] 260 $aIn: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 42., 2005, Goiânia. A produção animal e o foco no agronegócio: anais. Goiânia: Sociedade Brasileira de Zootecnia, 2005. 4 f. CD ROM.$c2005 650 $aCaatinga 650 $aDesmatamento 650 $aFauna 650 $aPousio 650 $aQueimada 650 $aSolo 653 $aBrasil 653 $aCeará 653 $aNordeste 653 $aSemi-Árido 653 $aSobral 700 1 $aNUNES, L. A. P. L. 700 1 $aARAUJO FILHO, J. A. de 700 1 $aSILVA, N. L. da
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