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Registro Completo |
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
15/01/2008 |
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Data da última atualização: |
25/03/2014 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
VIEIRA, R. F.; SILVA, C. M. M. de S.; SILVEIRA, A. P. D. da. |
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Afiliação: |
Rosana Faria Vieira, Embrapa Meio Ambiente; Célia Maria Maganhoto de Souza Silva, Embrapa Meio Ambiente; Adriana Parada Dias Silveira, IAC. |
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Título: |
Soil microbial biomass C and symbiotic processes associated with soybean after sulfentrazone herbicide application. |
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Ano de publicação: |
2007 |
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Fonte/Imprenta: |
Plant and Soil, The Hague, v.300, n.1-2, p. 95-103, 2007. |
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Idioma: |
Inglês |
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Conteúdo: |
The aim of this work was to evaluate the effects of the herbicide sulfentrazone on soil microbial biomass C and on symbiotic processes associated with soybean (Glycine max (L). Merril). The experiment was conducted in greenhouse using a Red-Yellow Oxisol soil collected from Embrapa Meio Ambiente\'s experimental field, in Jaguariúna, São Paulo, Brazil and included the following treatments: control, without herbicide and sulfentrazone herbicide application (0.7 mg kg-1 soil) and three harvest periods. The nodule number and nodule dry weight on the onset of soybean development were negatively affected by the presence of the herbicide, as also observed for shoot biomass and shoot total N content. Pod dry weight and pod total N content decreased by 45% in the presence of the herbicide. The percentage of mycorrhizal infection was 50% lower in pots that received sulfentrazone throughout the soybean growing season. Microbial biomass C was lower in the presence of the herbicide only in the initial period of soybean development. Mycorrhizal and rhizobial performance in soybean were reduced by sulfentrazone use, and both possibly contributed to reduced plant growth. |
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Thesagro: |
Contaminação; Fixação Simbiótica de Nitrogênio; Herbicida; Impacto Ambiental; Micorriza; Microbiologia do Solo; Rhizobium; Soja; Solo. |
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Categoria do assunto: |
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Marc: |
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001 1015564
005 2014-03-25
008 2007 bl uuuu u00u1 u #d
100 1 $aVIEIRA, R. F.
245 $aSoil microbial biomass C and symbiotic processes associated with soybean after sulfentrazone herbicide application.
260 $c2007
520 $aThe aim of this work was to evaluate the effects of the herbicide sulfentrazone on soil microbial biomass C and on symbiotic processes associated with soybean (Glycine max (L). Merril). The experiment was conducted in greenhouse using a Red-Yellow Oxisol soil collected from Embrapa Meio Ambiente\'s experimental field, in Jaguariúna, São Paulo, Brazil and included the following treatments: control, without herbicide and sulfentrazone herbicide application (0.7 mg kg-1 soil) and three harvest periods. The nodule number and nodule dry weight on the onset of soybean development were negatively affected by the presence of the herbicide, as also observed for shoot biomass and shoot total N content. Pod dry weight and pod total N content decreased by 45% in the presence of the herbicide. The percentage of mycorrhizal infection was 50% lower in pots that received sulfentrazone throughout the soybean growing season. Microbial biomass C was lower in the presence of the herbicide only in the initial period of soybean development. Mycorrhizal and rhizobial performance in soybean were reduced by sulfentrazone use, and both possibly contributed to reduced plant growth.
650 $aContaminação
650 $aFixação Simbiótica de Nitrogênio
650 $aHerbicida
650 $aImpacto Ambiental
650 $aMicorriza
650 $aMicrobiologia do Solo
650 $aRhizobium
650 $aSoja
650 $aSolo
700 1 $aSILVA, C. M. M. de S.
700 1 $aSILVEIRA, A. P. D. da
773 $tPlant and Soil, The Hague$gv.300, n.1-2, p. 95-103, 2007.
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Registro original: |
Embrapa Meio Ambiente (CNPMA) |
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