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 | Acesso ao texto completo restrito à biblioteca da Embrapa Clima Temperado. Para informações adicionais entre em contato com cpact.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Clima Temperado; Embrapa Meio Ambiente. |
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Data corrente: |
16/07/2014 |
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Data da última atualização: |
19/12/2014 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
ASSALIN, M. R.; QUEIROZ, S. C. do N. de; FERRACINI, V. L.; OLIVEIRA, T.; VILHENA, E.; MATTOS, M. L. T. |
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Afiliação: |
MARCIA REGINA ASSALIN, CNPMA; SONIA CLAUDIA DO N DE QUEIROZ, CNPMA; VERA LUCIA FERRACINI, CNPMA; TACIANA OLIVEIRA, CNPQ; EDER VILHENA, FAJ; MARIA LAURA TURINO MATTOS, CPACT. |
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Título: |
A method for determination of imazapic and imazethapyr residues in soil using an ultrasonic assisted extraction and LC-MS/MS. |
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Ano de publicação: |
2014 |
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Fonte/Imprenta: |
Bulletin of Environmental Contamination and Toxicology, California, v. 93, n. 3, p. 362-364, 2014. |
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DOI: |
10.1007/s00128-014-1330-6 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract At least 52 % of the planted rice area in Rio Grande do Sul, a major rice producing state in Brazil, employs Clearfield Ò production system, corresponding to 580,000 ha of cultivated area. To grow rice with Clear- field Ò technology, producers combine imazethapyr and imazapic herbicides. However, these herbicides leave residual activity in soil; consequently, the repeated appli- cation of imazethapyr and imazapic on Brazilian Clear- field Ò rice fields has increased these herbicides persistence in treated soils. In this study, a method has been developed for removal and quantification of imazethapyr and imaza- pic residues in soil through ultrasonic assisted extraction using methanol?phosphoric acid aqueous solution (pH 2.0). The detected response was linear for both herbicides within the range of 0.25?5 ng mL -1 with correlations coefficients [0.99. The quantification limit was limit of quantification 0.2 lg Kg -1 for both pesticides. The good recovery rate from all pesticides, which ranges between 70 % and 120 %, demonstrates the method?s validity. |
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Palavras-Chave: |
Clearfield production system; Imidazolinone; Residue analysis. |
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Thesagro: |
Análise química; Cromatografia; Herbicida; Poluição ambiental; Resíduo químico; Solo. |
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Thesaurus Nal: |
Chemical analysis; Imidazolinone herbicides; Liquid chromatography; Mass spectrometry; Multiresidue analysis; soil; Soil pollution. |
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Categoria do assunto: |
--
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02286naa a2200385 a 4500
001 2003358
005 2014-12-19
008 2014 bl uuuu u00u1 u #d
024 7 $a10.1007/s00128-014-1330-6$2DOI
100 1 $aASSALIN, M. R.
245 $aA method for determination of imazapic and imazethapyr residues in soil using an ultrasonic assisted extraction and LC-MS/MS.$h[electronic resource]
260 $c2014
520 $aAbstract At least 52 % of the planted rice area in Rio Grande do Sul, a major rice producing state in Brazil, employs Clearfield Ò production system, corresponding to 580,000 ha of cultivated area. To grow rice with Clear- field Ò technology, producers combine imazethapyr and imazapic herbicides. However, these herbicides leave residual activity in soil; consequently, the repeated appli- cation of imazethapyr and imazapic on Brazilian Clear- field Ò rice fields has increased these herbicides persistence in treated soils. In this study, a method has been developed for removal and quantification of imazethapyr and imaza- pic residues in soil through ultrasonic assisted extraction using methanol?phosphoric acid aqueous solution (pH 2.0). The detected response was linear for both herbicides within the range of 0.25?5 ng mL -1 with correlations coefficients [0.99. The quantification limit was limit of quantification 0.2 lg Kg -1 for both pesticides. The good recovery rate from all pesticides, which ranges between 70 % and 120 %, demonstrates the method?s validity.
650 $aChemical analysis
650 $aImidazolinone herbicides
650 $aLiquid chromatography
650 $aMass spectrometry
650 $aMultiresidue analysis
650 $asoil
650 $aSoil pollution
650 $aAnálise química
650 $aCromatografia
650 $aHerbicida
650 $aPoluição ambiental
650 $aResíduo químico
650 $aSolo
653 $aClearfield production system
653 $aImidazolinone
653 $aResidue analysis
700 1 $aQUEIROZ, S. C. do N. de
700 1 $aFERRACINI, V. L.
700 1 $aOLIVEIRA, T.
700 1 $aVILHENA, E.
700 1 $aMATTOS, M. L. T.
773 $tBulletin of Environmental Contamination and Toxicology, California$gv. 93, n. 3, p. 362-364, 2014.
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Registro original: |
Embrapa Meio Ambiente (CNPMA) |
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Origem |
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Cutter |
Registro |
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URL |
Voltar
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Registro Completo
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Biblioteca(s): |
Embrapa Territorial. |
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Data corrente: |
06/04/2010 |
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Data da última atualização: |
01/06/2017 |
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Tipo da produção científica: |
Capítulo em Livro Técnico-Científico |
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Autoria: |
BRONDÍZIO, E. S.; CAK, A.; CALDAS, M. M.; MENA, C.; BILSBORROW, R.; FUTEMMA, C. T.; LUDEWIGS, T.; MORAN, E. F.; BATISTELLA, M. |
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Afiliação: |
EDUARDO S. BRONDÍZIO, INDIANA UNIVERSITY; ANTHONY CAK, INDIANA UNIVERSITY; MARCELLUS M. CALDAS, KANSAS STATE UNIVERSITY; CARLOS MENA, UNIVERSIDAD SAN FRANCISCO DE QUITO/UNIVERSITY OF NORTH CAROLINA; RICHARD BILSBORROW, UNIVERSITY OF NORTH CAROLINA; CELIA T. FUTEMA, UNIVERSIDADE FEDERAL DE SÃO CARLOS; THOMAS LUDEWIGS, UNIVERSIDADE DE BRASÍLIA; EMILIO F. MORAN, INDIANA UNIVERSTY; MATEUS BATISTELLA, CNPM. |
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Título: |
Small farmers and deforestation in Amazonia. |
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Ano de publicação: |
2009 |
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Fonte/Imprenta: |
In: KELLER, M.; BUSTAMANTE, M.; GASH, J.; DIAS, P. S. (Ed.). Amazonia and global change. Washington: American Geophysical Union, 2009. |
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Páginas: |
p. 117-143 |
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Série: |
(Geophysical Monograph, 186) |
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ISBN: |
978-0-87590476-4 |
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Idioma: |
Português |
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Conteúdo: |
This chapter discusses the relationship between small farmers land use and deforestation, with particular attention paid to the past 30 years of Amazonian colonization in Brazil and Ecuador. Our analysis calls attention to common features uniting different social groups as small farmers (e.g., social identity, access to land and resources, technology, market and credit), as well as the variability between small farmers in terms of time in the region (from native populations to recent colonists), contribution to regional deforestation, types of land use systems. At a regional level, small farmers contribute to the majority of deforestation events, but ate responsible for only a fraction of the total deforested area in Amazonia. We discuss three misconceptions that have been used to define small farmers and their contribution to the regional economy, development, and deforestation: (1) small farmers have backward land use systems associated with low productivity and extensive deforestation and subsistence production, (2) small farmers contribute to Amazonian deforestation as much as large farmers, and (3) small farmers, particularly colonist farmers, follow an inexorable path of deforestation unless curbed by government action. We conclude the chapter discussing their growing regional importance and the need for more inclusive public concerning infrastructure and services and valorization of resources produced in rural areas of Amazonia. |
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Thesaurus NAL: |
Amazonia. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/35367/1/CL40001.pdf
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Marc: |
LEADER 02225naa a2200265 a 4500
001 1663208
005 2017-06-01
008 2009 bl uuuu u00u1 u #d
020 $a978-0-87590476-4
100 1 $aBRONDÍZIO, E. S.
245 $aSmall farmers and deforestation in Amazonia.
260 $c2009
300 $ap. 117-143
490 $a(Geophysical Monograph, 186)
520 $aThis chapter discusses the relationship between small farmers land use and deforestation, with particular attention paid to the past 30 years of Amazonian colonization in Brazil and Ecuador. Our analysis calls attention to common features uniting different social groups as small farmers (e.g., social identity, access to land and resources, technology, market and credit), as well as the variability between small farmers in terms of time in the region (from native populations to recent colonists), contribution to regional deforestation, types of land use systems. At a regional level, small farmers contribute to the majority of deforestation events, but ate responsible for only a fraction of the total deforested area in Amazonia. We discuss three misconceptions that have been used to define small farmers and their contribution to the regional economy, development, and deforestation: (1) small farmers have backward land use systems associated with low productivity and extensive deforestation and subsistence production, (2) small farmers contribute to Amazonian deforestation as much as large farmers, and (3) small farmers, particularly colonist farmers, follow an inexorable path of deforestation unless curbed by government action. We conclude the chapter discussing their growing regional importance and the need for more inclusive public concerning infrastructure and services and valorization of resources produced in rural areas of Amazonia.
650 $aAmazonia
700 1 $aCAK, A.
700 1 $aCALDAS, M. M.
700 1 $aMENA, C.
700 1 $aBILSBORROW, R.
700 1 $aFUTEMMA, C. T.
700 1 $aLUDEWIGS, T.
700 1 $aMORAN, E. F.
700 1 $aBATISTELLA, M.
773 $tIn: KELLER, M.; BUSTAMANTE, M.; GASH, J.; DIAS, P. S. (Ed.). Amazonia and global change. Washington: American Geophysical Union, 2009.
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Embrapa Territorial (CNPM) |
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