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Registro Completo |
Biblioteca(s): |
Embrapa Florestas. |
Data corrente: |
17/05/1999 |
Data da última atualização: |
17/05/1999 |
Autoria: |
VALE, A. T. do; NOGUEIRA, M. V. P. |
Título: |
Variacao longitudinal da densidade basica e contracao da madeira de Dalbergia miscolobium Benth. |
Ano de publicação: |
1998 |
Fonte/Imprenta: |
Revista Arvore, Vicosa, v.22, n.3, p.429-432, 1998. |
ISSN: |
0100-6762 |
Idioma: |
Português |
Palavras-Chave: |
Basic density; Contracao; Contraction; Densidade basica. |
Thesaurus Nal: |
Dalbergia miscolobium. |
Categoria do assunto: |
-- |
Marc: |
LEADER 00571naa a2200193 a 4500 001 1285188 005 1999-05-17 008 1998 bl uuuu u00u1 u #d 022 $a0100-6762 100 1 $aVALE, A. T. do 245 $aVariacao longitudinal da densidade basica e contracao da madeira de Dalbergia miscolobium Benth. 260 $c1998 650 $aDalbergia miscolobium 653 $aBasic density 653 $aContracao 653 $aContraction 653 $aDensidade basica 700 1 $aNOGUEIRA, M. V. P. 773 $tRevista Arvore, Vicosa$gv.22, n.3, p.429-432, 1998.
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Embrapa Florestas (CNPF) |
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Registro Completo
Biblioteca(s): |
Embrapa Amazônia Ocidental. |
Data corrente: |
28/11/2007 |
Data da última atualização: |
13/08/2018 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
Internacional - A |
Autoria: |
STEINER, C.; DAS, K. C.; GARCIA, M. V. B.; FÖRSTER, B.; ZECH, W. |
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. |
Título: |
Charcoal and smoke extract stimulate the soil microbial community in a highly weathered xanthic Ferralsol. |
Ano de publicação: |
2008 |
Fonte/Imprenta: |
Pedobiologia, v. 51, p. 354-366, 2008. |
Idioma: |
Inglês |
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. |
Palavras-Chave: |
Carvão de lenha; Extrato do fumo. |
Thesagro: |
Microbiologia do Solo. |
Thesaurus NAL: |
terra preta. |
Categoria do assunto: |
-- |
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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