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| Registros recuperados : 5 | |
| Registros recuperados : 5 | |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Amazônia Ocidental. Para informações adicionais entre em contato com cpaa.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Amazônia Ocidental. |
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Data corrente: |
28/11/2007 |
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Data da última atualização: |
13/08/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
Internacional - A |
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Autoria: |
STEINER, C.; DAS, K. C.; GARCIA, M. V. B.; FÖRSTER, B.; ZECH, W. |
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Afiliação: |
Christoph Steiner, University of Bayreuth; Keshav C. Das, Biorefining and Carbon Cycling Program; MARCOS VINICIUS BASTOS GARCIA, CPAA; Bernhard Förster, ECT Oekotoxikologie GmbH; Wolfgang Zech, University of Bayreuth. |
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Título: |
Charcoal and smoke extract stimulate the soil microbial community in a highly weathered xanthic Ferralsol. |
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Ano de publicação: |
2008 |
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Fonte/Imprenta: |
Pedobiologia, v. 51, p. 354-366, 2008. |
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Idioma: |
Inglês |
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Conteúdo: |
The influence of charcoal and smoke condensates (pyroligneous acid, PA) on microbial activity in a highly weathered Amazonian upland soil was assessed via measurements of basal respiration (BR), substrate-induced respiration (SIR), and exponential population increase after substrate addition. PA extracts are commonly used for fertilizer or as pest control in Brazil, where phosphorus (P) availability and nitrogen (N) leaching are among the most severe limitations for agriculture. Microbes play an important role in nutrient cycling and solubilizing of phosphate. BR, microbial biomass, population growth and the microbe?s efficiency (expressed by the metabolic quotient) increased linearly and significantly with increasing charcoal concentrations (50, 100 and 150 g kg1 soil). Application of PA caused a sharp increase in all parameters. We suppose that the condensates from smoke contain easily degradable substances and only small amounts of inhibitory agents, which could be utilized by the microbes for their metabolism. |
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Palavras-Chave: |
Carvão de lenha; Extrato do fumo. |
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Thesagro: |
Microbiologia do Solo. |
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Thesaurus NAL: |
terra preta. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01640naa a2200217 a 4500
001 1681405
005 2018-08-13
008 2008 bl uuuu u00u1 u #d
100 1 $aSTEINER, C.
245 $aCharcoal and smoke extract stimulate the soil microbial community in a highly weathered xanthic Ferralsol.
260 $c2008
520 $aThe influence of charcoal and smoke condensates (pyroligneous acid, PA) on microbial activity in a highly weathered Amazonian upland soil was assessed via measurements of basal respiration (BR), substrate-induced respiration (SIR), and exponential population increase after substrate addition. PA extracts are commonly used for fertilizer or as pest control in Brazil, where phosphorus (P) availability and nitrogen (N) leaching are among the most severe limitations for agriculture. Microbes play an important role in nutrient cycling and solubilizing of phosphate. BR, microbial biomass, population growth and the microbe?s efficiency (expressed by the metabolic quotient) increased linearly and significantly with increasing charcoal concentrations (50, 100 and 150 g kg1 soil). Application of PA caused a sharp increase in all parameters. We suppose that the condensates from smoke contain easily degradable substances and only small amounts of inhibitory agents, which could be utilized by the microbes for their metabolism.
650 $aterra preta
650 $aMicrobiologia do Solo
653 $aCarvão de lenha
653 $aExtrato do fumo
700 1 $aDAS, K. C.
700 1 $aGARCIA, M. V. B.
700 1 $aFÖRSTER, B.
700 1 $aZECH, W.
773 $tPedobiologia$gv. 51, p. 354-366, 2008.
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