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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: |
22/05/2007 |
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Data da última atualização: |
08/06/2015 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
MATALLO, M. B.; SPADOTTO, C. A.; LUCHINI, L. C.; GOMES, M. A. F. |
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Afiliação: |
Marcus B. Matallo, Centro Experimental Central do Instituto Biológico, Campinas, São Paulo, Brazil; CLAUDIO APARECIDO SPADOTTO, SGTE; Luiz C. Luchini, Centro de Pesquisa e Desenvolvimento em Proteção, Ambiental Instituto Biológico, São Paulo, Brazil; MARCO ANTONIO FERREIRA GOMES, CNPMA. |
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Título: |
Sorption, degradation, and leaching of tebuthiuron and diuron in soil columns. |
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Ano de publicação: |
2005 |
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Fonte/Imprenta: |
Journal of Environmental Science and Health. Part B, Pesticides, Food Contaminants, and Agricultural Wastes, New York, v. B40, n. 1, p. 39-43, 2005. |
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Idioma: |
Inglês |
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Conteúdo: |
A study in small outdoor lisimeters was carried out to determine the leaching of the herbicides tebuthiuron and diuron in different soil types, using undisturbed soil columns. Soil sorption and degradation for both herbicides were also studied in laboratory. The multi-layered AF (Attenuation Factor) model was evaluated for predicting the herbicides leaching in undisturbed soil columns. Tebuthiuron leached in larger amounts than diuron in both soils. Sorption was well represented by linear and Freundlich equations, however parameters from the linear equations were used in the AF model. In general, both herbicides presented very low sorption, with diuron presenting lower values of sorption coefficient than tebuthiuron in the two soils. Chromatographic data had indicated rapid late degradation of diuron and tebuthiuron in both soil types, in two different depths. Simple exponential equation was not able to represent degradation, thus a bi-exponential equation was used, and some model adjusting was needed. Average measured amounts of each herbicide were compared with amounts predicted by the multi-layered-soil AF model. The AF model was able to predict leaching amounts in the sandy soil, especially for diuron, however its performance was not good in the clayey soil. |
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Palavras-Chave: |
Degradação; Deteriorização do solo; Tebutiuron. |
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Thesagro: |
Herbicida; Lixiviação; Modelo matemático; Solo; Sorção. |
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Thesaurus Nal: |
diuron. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02107naa a2200265 a 4500
001 1015449
005 2015-06-08
008 2005 bl uuuu u00u1 u #d
100 1 $aMATALLO, M. B.
245 $aSorption, degradation, and leaching of tebuthiuron and diuron in soil columns.$h[electronic resource]
260 $c2005
520 $aA study in small outdoor lisimeters was carried out to determine the leaching of the herbicides tebuthiuron and diuron in different soil types, using undisturbed soil columns. Soil sorption and degradation for both herbicides were also studied in laboratory. The multi-layered AF (Attenuation Factor) model was evaluated for predicting the herbicides leaching in undisturbed soil columns. Tebuthiuron leached in larger amounts than diuron in both soils. Sorption was well represented by linear and Freundlich equations, however parameters from the linear equations were used in the AF model. In general, both herbicides presented very low sorption, with diuron presenting lower values of sorption coefficient than tebuthiuron in the two soils. Chromatographic data had indicated rapid late degradation of diuron and tebuthiuron in both soil types, in two different depths. Simple exponential equation was not able to represent degradation, thus a bi-exponential equation was used, and some model adjusting was needed. Average measured amounts of each herbicide were compared with amounts predicted by the multi-layered-soil AF model. The AF model was able to predict leaching amounts in the sandy soil, especially for diuron, however its performance was not good in the clayey soil.
650 $adiuron
650 $aHerbicida
650 $aLixiviação
650 $aModelo matemático
650 $aSolo
650 $aSorção
653 $aDegradação
653 $aDeteriorização do solo
653 $aTebutiuron
700 1 $aSPADOTTO, C. A.
700 1 $aLUCHINI, L. C.
700 1 $aGOMES, M. A. F.
773 $tJournal of Environmental Science and Health. Part B, Pesticides, Food Contaminants, and Agricultural Wastes, New York$gv. B40, n. 1, p. 39-43, 2005.
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Registro original: |
Embrapa Meio Ambiente (CNPMA) |
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Registro Completo
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Biblioteca(s): |
Embrapa Trigo. |
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Data corrente: |
31/08/2021 |
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Data da última atualização: |
25/02/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
MENEGHETTI, V. L.; BIDUSKI, B.; TIBOLA, C. S.; MARSARO JUNIOR, A. L.; MIRANDA, M. Z. de; LIMA, M. I. P. M.; GUARIENTI, E. M.; GUTKOSKI, L. C. |
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Afiliação: |
VOLNEI L. MENEGHETTI, a Federal Institute of Education Science and Technology Farroupilha – Campus Panambi, Panambi, Brazil; BÁRBARA BIDUSKI, Graduate Program in Food Science and Technology, University of Passo Fundo, Passo Fundo, Brazil; CASIANE SALETE TIBOLA, CNPT; ALBERTO LUIZ MARSARO JUNIOR, CNPT; MARTHA ZAVARIZ DE MIRANDA, CNPT; MARIA IMACULADA PONTES M LIMA, CNPT; ELIANA MARIA GUARIENTI, CNPT; LUIZ C. GUTKOSKI, Food and Nutrition Graduate Program (PPGAN), Federal University of the State of Rio de Janeiro (UNIRIO), Rio de Janeiro, Brazil. |
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Título: |
Evaluation of losses and quality maintenance of wheat during storage in a commercial unit in Brazil. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Journal of the Science of Food and Agriculture, aug. 2021. |
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DOI: |
10.1002/jsfa.11493 |
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Idioma: |
Inglês |
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Conteúdo: |
BACKGROUND: Specific studies of Brazilian wheat storage on a commercial scale on the maintenance of wheat quality are required since the continental extent of Brazil has regions of different weather and because of the diversity of the storage network. This study aimed to evaluate the technological quality (physicochemical and rheological), sanitary quality (insects, fungi and mycotoxins) and dry matter loss of wheat stored in a metal silo in a commercial storage unit. Two dynamic samples, collected during loading and unloading of wheat in silos, and four static samples, collected using a commercial pneumatic grain sampler, were used in this study. RESULTS: Silo temperature was higher than 20 °C during the summer season. The temperature was approximately 15 °C from June to December and provided excellent conditions for grain aeration, which resulted in the maintenance of wheat quality, with no changes in hectoliter weight and rheological properties of wheat (falling number, wet gluten and stability). The effect of Alternaria spp. (∼220) and Aspergillus flavus (∼7) infection on wheat did not differ statistically during the storage period, although a slight increase in A. flavus infection was noted in February (summer season). The wheat mycotoxins deoxynivalenol,zearalenone, aflatoxins and ochratoxin A were not detected during the studied storage period. Finally, dry matter reduced by approximately 0.4% after the storage period ? approximately 0.013% per month. CONCLUSION: The management practices and climate conditions in southern Brazil provided excellent conditions for grain aeration at ambient air temperature and led to the maintenance of wheat quality during the post-harvest period. © 2021 Society of Chemical Industry. MenosBACKGROUND: Specific studies of Brazilian wheat storage on a commercial scale on the maintenance of wheat quality are required since the continental extent of Brazil has regions of different weather and because of the diversity of the storage network. This study aimed to evaluate the technological quality (physicochemical and rheological), sanitary quality (insects, fungi and mycotoxins) and dry matter loss of wheat stored in a metal silo in a commercial storage unit. Two dynamic samples, collected during loading and unloading of wheat in silos, and four static samples, collected using a commercial pneumatic grain sampler, were used in this study. RESULTS: Silo temperature was higher than 20 °C during the summer season. The temperature was approximately 15 °C from June to December and provided excellent conditions for grain aeration, which resulted in the maintenance of wheat quality, with no changes in hectoliter weight and rheological properties of wheat (falling number, wet gluten and stability). The effect of Alternaria spp. (∼220) and Aspergillus flavus (∼7) infection on wheat did not differ statistically during the storage period, although a slight increase in A. flavus infection was noted in February (summer season). The wheat mycotoxins deoxynivalenol,zearalenone, aflatoxins and ochratoxin A were not detected during the studied storage period. Finally, dry matter reduced by approximately 0.4% after the storage period ? approximately 0.013% per month. CONC... Mostrar Tudo |
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Palavras-Chave: |
Dry matter loss; Long-term storage; Metal silos; Wheat quality. |
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Thesagro: |
Triticum Aestivum. |
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Thesaurus NAL: |
Wheat. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 02623naa a2200289 a 4500
001 2133955
005 2022-02-25
008 2021 bl uuuu u00u1 u #d
024 7 $a10.1002/jsfa.11493$2DOI
100 1 $aMENEGHETTI, V. L.
245 $aEvaluation of losses and quality maintenance of wheat during storage in a commercial unit in Brazil.$h[electronic resource]
260 $c2021
520 $aBACKGROUND: Specific studies of Brazilian wheat storage on a commercial scale on the maintenance of wheat quality are required since the continental extent of Brazil has regions of different weather and because of the diversity of the storage network. This study aimed to evaluate the technological quality (physicochemical and rheological), sanitary quality (insects, fungi and mycotoxins) and dry matter loss of wheat stored in a metal silo in a commercial storage unit. Two dynamic samples, collected during loading and unloading of wheat in silos, and four static samples, collected using a commercial pneumatic grain sampler, were used in this study. RESULTS: Silo temperature was higher than 20 °C during the summer season. The temperature was approximately 15 °C from June to December and provided excellent conditions for grain aeration, which resulted in the maintenance of wheat quality, with no changes in hectoliter weight and rheological properties of wheat (falling number, wet gluten and stability). The effect of Alternaria spp. (∼220) and Aspergillus flavus (∼7) infection on wheat did not differ statistically during the storage period, although a slight increase in A. flavus infection was noted in February (summer season). The wheat mycotoxins deoxynivalenol,zearalenone, aflatoxins and ochratoxin A were not detected during the studied storage period. Finally, dry matter reduced by approximately 0.4% after the storage period ? approximately 0.013% per month. CONCLUSION: The management practices and climate conditions in southern Brazil provided excellent conditions for grain aeration at ambient air temperature and led to the maintenance of wheat quality during the post-harvest period. © 2021 Society of Chemical Industry.
650 $aWheat
650 $aTriticum Aestivum
653 $aDry matter loss
653 $aLong-term storage
653 $aMetal silos
653 $aWheat quality
700 1 $aBIDUSKI, B.
700 1 $aTIBOLA, C. S.
700 1 $aMARSARO JUNIOR, A. L.
700 1 $aMIRANDA, M. Z. de
700 1 $aLIMA, M. I. P. M.
700 1 $aGUARIENTI, E. M.
700 1 $aGUTKOSKI, L. C.
773 $tJournal of the Science of Food and Agriculture, aug. 2021.
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