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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: |
11/01/2008 |
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Data da última atualização: |
24/02/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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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. |
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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. |
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Título: |
Leaching and half-life of the herbicide tebuthiuron on a recharge area of Guarany aquifer in sugarcane fields in Brazil. |
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Ano de publicação: |
2007 |
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Fonte/Imprenta: |
Journal of Environmental Science and Health, Part B: Pesticides, Food Contaminants, and Agricultural Wastes, v. 42, p. 635-639, 2007. |
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Idioma: |
Inglês |
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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. |
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Palavras-Chave: |
Água subterrânea; Tebutiurom. |
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Thesagro: |
Agrotóxico; Transporte. |
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Categoria do assunto: |
-- |
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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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Registro original: |
Embrapa Meio Ambiente (CNPMA) |
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Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
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Registro Completo
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
15/03/2019 |
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Data da última atualização: |
23/09/2019 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
BOMFIM, M. A. D.; MEDEIROS, A. N.; BATISTA, A. M. V.; SILVA, J. K.; MACIEL, M. do V.; CAVALCANTE, A. C. R.; GALVANI, D. B.; SANTOS, S. F. dos; ANGERER, J. |
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Afiliação: |
MARCO AURELIO DELMONDES BOMFIM, CNPC; Universidade Federal da Paraíba (UFPB) - João Pessoa, PB, Brazil; ANGELA MARIA VIEIRA BATISTA, Federal Rural University of Pernambuco (UFRP) - Recife, PE, Brazil; JACIANELLY KARLA SILVA, Universidade Federal da Paraíba (UFPB) - João Pessoa, PB, Brazil; MICHEL DO VALE MACIEL, Federal Rural University of Pernambuco (UFRP) - Recife, PE, Brazil; ANA CLARA RODRIGUES CAVALCANTE, CNPC; DIEGO BARCELOS GALVANI, CNPC; SUELI FREITAS DOS SANTOS, Universidade Federal da Paraíba (UFPB) - João Pessoa, PB, Brazil; JAY ANGERER, Texas A&M AgriLife Research - Blackland Research and Extension Center. |
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Título: |
Exploratory data assessment of fecal NIRS from small ruminants: toward a global model to Brazilian Northeastern rangelands. |
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Ano de publicação: |
2015 |
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Fonte/Imprenta: |
In: INTERNATIONAL CONFERENCE ON NEAR INFRARED SPECTROSCOPY, 17., 2015, Foz do Iguassu. Book of abstracts. [S.l]: International Council for Near Infrared Spectroscopy, 2015. |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: The nutrition of grazing ruminants on Brazilian Northeastern rangelands (Caatinga) is challenging. The Fecal NIR spectrum shows high linearity with dietary nutrients of grazing ruminants. However, it requires a database variability wide enough to encompass all field condition. Many species from Caatinga have been identified as endemical, may acting as a link points, raising the possibility to build a global model. This work is a first approximation to evaluate the feasibility to develop a global model of fecal NIRS to small ruminants on Brazilian Caatinga. In conclusion, fecal NIR global model from Brazilian rangelands seems be potentially feasible, depending on how wide is the botanical composition of the area and when the samples are obtained, representing this last point the challenge toward a global model. |
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Palavras-Chave: |
Infrared spectrophotometry; NIR spectroscopy. |
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Thesagro: |
Caatinga. |
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Thesaurus NAL: |
Animal models; Animal nutrition; Brazil; Goats; Rangelands; Ruminant nutrition; Semiarid soils; Sheep; Small ruminants. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/194302/1/CNPC-2015-Exploratory.pdf
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Marc: |
LEADER 01968nam a2200349 a 4500
001 2107114
005 2019-09-23
008 2015 bl uuuu u00u1 u #d
100 1 $aBOMFIM, M. A. D.
245 $aExploratory data assessment of fecal NIRS from small ruminants$btoward a global model to Brazilian Northeastern rangelands.$h[electronic resource]
260 $aIn: INTERNATIONAL CONFERENCE ON NEAR INFRARED SPECTROSCOPY, 17., 2015, Foz do Iguassu. Book of abstracts. [S.l]: International Council for Near Infrared Spectroscopy$c2015
520 $aAbstract: The nutrition of grazing ruminants on Brazilian Northeastern rangelands (Caatinga) is challenging. The Fecal NIR spectrum shows high linearity with dietary nutrients of grazing ruminants. However, it requires a database variability wide enough to encompass all field condition. Many species from Caatinga have been identified as endemical, may acting as a link points, raising the possibility to build a global model. This work is a first approximation to evaluate the feasibility to develop a global model of fecal NIRS to small ruminants on Brazilian Caatinga. In conclusion, fecal NIR global model from Brazilian rangelands seems be potentially feasible, depending on how wide is the botanical composition of the area and when the samples are obtained, representing this last point the challenge toward a global model.
650 $aAnimal models
650 $aAnimal nutrition
650 $aBrazil
650 $aGoats
650 $aRangelands
650 $aRuminant nutrition
650 $aSemiarid soils
650 $aSheep
650 $aSmall ruminants
650 $aCaatinga
653 $aInfrared spectrophotometry
653 $aNIR spectroscopy
700 1 $aMEDEIROS, A. N.
700 1 $aBATISTA, A. M. V.
700 1 $aSILVA, J. K.
700 1 $aMACIEL, M. do V.
700 1 $aCAVALCANTE, A. C. R.
700 1 $aGALVANI, D. B.
700 1 $aSANTOS, S. F. dos
700 1 $aANGERER, J.
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Embrapa Caprinos e Ovinos (CNPC) |
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