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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: |
21/07/1999 |
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Data da última atualização: |
15/04/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
AGBENIN, J. O.; ABREU, C. A. de; RAIJ, B. van. |
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Afiliação: |
JOHN O. AGBENIN; CLEIDE A. DE ABREU, IAC/CAMPINAS; BERNARDO VAN RAIJ, CNPMA. |
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Título: |
Extraction of phytoavailable trace metals from tropical soils by mixed ion exchange resin modified with inorganic and organic ligands. |
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Ano de publicação: |
1999 |
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Fonte/Imprenta: |
Science of the Total Environment, v.227, p.187-196, 1999. |
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Idioma: |
Inglês |
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Conteúdo: |
Chelating agents and organic acid ligands readily solubilize trace and heavy metals in soils. We compared Fe, Mn, Cu and Zn extracted from 16 soils by a mixed ion exchange resin (Amberlite IRA-120 + Amberlite IRA-400) modified with six simple inorganic and organic acid ligands with a conventional chelating agent (DTPA) and biossay. The mixed cation-anion exchange resins were saturated with Na-salts of chloride (R-CHL), bicarbonate (R-BIC), fluoride (R-FLU), acetate (R-ACT), citrate (R-CIT) and tartrate (R-TAR). Solubilization and adsorption of Fe and Cu from the soils By resin-ligand systems decreased in the order R-CIT >_ R-FLU >_ R-TAR = R-ACT > R-CHL = R-BIC reflecting differential stability of Fe- and Cu-organic/inorganic complexes. The R-CHL solubilized and adsorbed more Mn and Zn than other resin-ligand systems because of the relatively low pH maintained by the R-CHL-soil suspension. Extraction with DTPA gave similar amounts of Fe and Mn as resin-ligand systems, but DTPA extracted two to three times more Cu and Zn than resin. Resin-extractable Fe, Mn and Cu correlated with the corresponding DTPA-extractable metal contents, while both resin- and DTPA-extractable Cu correlated with the bioassay results. The R-ACT and R-TAR extractable Zn correlated more strongly with the biossay results than DTPA-extractable Zn. Mixed ion exchange resin is apparently feasible for characterizing plant available Fe, Mn, Cu and Zn in soils. |
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Palavras-Chave: |
Bioassay; Chemical extraction; Effect; Resin extraction. |
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Thesaurus Nal: |
agriculture; soil properties. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02131naa a2200217 a 4500
001 1013137
005 2019-04-15
008 1999 bl uuuu u00u1 u #d
100 1 $aAGBENIN, J. O.
245 $aExtraction of phytoavailable trace metals from tropical soils by mixed ion exchange resin modified with inorganic and organic ligands.$h[electronic resource]
260 $c1999
520 $aChelating agents and organic acid ligands readily solubilize trace and heavy metals in soils. We compared Fe, Mn, Cu and Zn extracted from 16 soils by a mixed ion exchange resin (Amberlite IRA-120 + Amberlite IRA-400) modified with six simple inorganic and organic acid ligands with a conventional chelating agent (DTPA) and biossay. The mixed cation-anion exchange resins were saturated with Na-salts of chloride (R-CHL), bicarbonate (R-BIC), fluoride (R-FLU), acetate (R-ACT), citrate (R-CIT) and tartrate (R-TAR). Solubilization and adsorption of Fe and Cu from the soils By resin-ligand systems decreased in the order R-CIT >_ R-FLU >_ R-TAR = R-ACT > R-CHL = R-BIC reflecting differential stability of Fe- and Cu-organic/inorganic complexes. The R-CHL solubilized and adsorbed more Mn and Zn than other resin-ligand systems because of the relatively low pH maintained by the R-CHL-soil suspension. Extraction with DTPA gave similar amounts of Fe and Mn as resin-ligand systems, but DTPA extracted two to three times more Cu and Zn than resin. Resin-extractable Fe, Mn and Cu correlated with the corresponding DTPA-extractable metal contents, while both resin- and DTPA-extractable Cu correlated with the bioassay results. The R-ACT and R-TAR extractable Zn correlated more strongly with the biossay results than DTPA-extractable Zn. Mixed ion exchange resin is apparently feasible for characterizing plant available Fe, Mn, Cu and Zn in soils.
650 $aagriculture
650 $asoil properties
653 $aBioassay
653 $aChemical extraction
653 $aEffect
653 $aResin extraction
700 1 $aABREU, C. A. de
700 1 $aRAIJ, B. van
773 $tScience of the Total Environment$gv.227, p.187-196, 1999.
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Registro original: |
Embrapa Meio Ambiente (CNPMA) |
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Biblioteca |
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Origem |
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Classificação |
Cutter |
Registro |
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URL |
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Registro Completo
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Biblioteca(s): |
Embrapa Uva e Vinho. |
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Data corrente: |
04/08/2015 |
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Data da última atualização: |
17/07/2019 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
FURINI, G.; REINEHR, J.; COMACHIO, V.; ZILIO, R. A.; MAIA, J. D. G.; SOUZA, R. T. de; RITSCHEL, P. S. |
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Afiliação: |
VALTAIR COMACHIO, CNPUV; ROQUE ANTONIO ZILIO, CNPUV; JOAO DIMAS GARCIA MAIA, CNPUV; REGINALDO TEODORO DE SOUZA, CNPUV; PATRICIA SILVA RITSCHEL, CNPUV. |
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Título: |
Atributos visuais e sensoriais de uvas de mesa cultivadas sob cobertura plástica na Serra Gaúcha. |
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Ano de publicação: |
2015 |
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Fonte/Imprenta: |
In.:ENCONTRO DE INICIAÇÃO CIENTÍFICA, 13., 2015. Bento Gonçalves. Resumos... Bento Gonçalves: Embrapa Uva e Vinho, 2015. |
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Páginas: |
p. 62. |
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Idioma: |
Português |
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Palavras-Chave: |
Anais; Atributos visuais e sensoriais; CNPUV; IC; Iniciação cientifica; Uvas de mesa. |
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Thesagro: |
Uva. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/127472/1/Furini-13IC-p62-2015.pdf
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Marc: |
LEADER 00831nam a2200265 a 4500
001 2021359
005 2019-07-17
008 2015 bl uuuu u00u1 u #d
100 1 $aFURINI, G.
245 $aAtributos visuais e sensoriais de uvas de mesa cultivadas sob cobertura plástica na Serra Gaúcha.$h[electronic resource]
260 $aIn.:ENCONTRO DE INICIAÇÃO CIENTÍFICA, 13., 2015. Bento Gonçalves. Resumos... Bento Gonçalves: Embrapa Uva e Vinho$c2015
300 $ap. 62.
650 $aUva
653 $aAnais
653 $aAtributos visuais e sensoriais
653 $aCNPUV
653 $aIC
653 $aIniciação cientifica
653 $aUvas de mesa
700 1 $aREINEHR, J.
700 1 $aCOMACHIO, V.
700 1 $aZILIO, R. A.
700 1 $aMAIA, J. D. G.
700 1 $aSOUZA, R. T. de
700 1 $aRITSCHEL, P. S.
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