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Registro Completo |
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Biblioteca(s): |
Embrapa Amazônia Ocidental. |
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Data corrente: |
31/10/2007 |
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Data da última atualização: |
11/01/2008 |
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Autoria: |
DÜNISCH, O.; LIMA, V. C.; SEEHANN, G.; DONATH, J.; MONTÓIA, V. R.; SCHWARZ, T. |
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Afiliação: |
Institute for Wood Biology and Wood Protection; Universidade Federal do Paraná; Otto Henneberg; Bolsista-CPAA. |
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Título: |
Retention properties of wood residues and their potential for soil amelioration. |
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Ano de publicação: |
2007 |
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Fonte/Imprenta: |
Wood Science and Technology, v. 41, n. 2, p. 169-189, fev. 2007. |
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Idioma: |
Inglês |
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Conteúdo: |
The particle size distribution, the nutrient content and the sorption behaviour of six solid wood and ash/charcoal residues collected in three wood-processing companies in Germany and Brazil were investigated in order to elucidate the potential of these residues for the development of new products for soil amelioration. The absorption of N, P, and K by the residues and the leaching of nutrients from impregnated samples were studied in the laboratory at substrate temperatures of 20 and 300°C. The release of elements by the impregnated samples and the sorption behaviour of ash/charcoal incorporated in the soil were also studied in the field on a temperate site (Hamburg, 53°32'N 09°59'E), on a subtropical site (Ivaí, 25°15'S 50°45'W), and on a tropical site (Aripuanã, 10°09'S 59°26'W). Under laboratory conditions the solid wood residues absorbed 2.0?9.1% of the N, 0.1?0.4% of the P, and 1.0?8.5% of the K available in the impregnation solution. At a temperature of 20°C, selected sieve fractions of the ash/charcoal residues absorbed up to twice as much as N and up to 100 times more K than the treated wood residues. The absorption of N, P, and K to the ash/charcoal residues increased significantly at a substrate temperature of 300°C compared to a substrate temperature of 20°C. In absolute numbers, the leaching of N, P, and K from the impregnated ash/charcoal residues was in the range of the release by the impregnated solid wood residues, whilst the relative rate of nutrient leaching was strongly reduced. The field experiments confirmed the results obtained in the laboratory and indicated that ash/charcoal residues are suitable raw materials for the development of new products for soil amelioration, in particular for application under humid climate conditions. MenosThe particle size distribution, the nutrient content and the sorption behaviour of six solid wood and ash/charcoal residues collected in three wood-processing companies in Germany and Brazil were investigated in order to elucidate the potential of these residues for the development of new products for soil amelioration. The absorption of N, P, and K by the residues and the leaching of nutrients from impregnated samples were studied in the laboratory at substrate temperatures of 20 and 300°C. The release of elements by the impregnated samples and the sorption behaviour of ash/charcoal incorporated in the soil were also studied in the field on a temperate site (Hamburg, 53°32'N 09°59'E), on a subtropical site (Ivaí, 25°15'S 50°45'W), and on a tropical site (Aripuanã, 10°09'S 59°26'W). Under laboratory conditions the solid wood residues absorbed 2.0?9.1% of the N, 0.1?0.4% of the P, and 1.0?8.5% of the K available in the impregnation solution. At a temperature of 20°C, selected sieve fractions of the ash/charcoal residues absorbed up to twice as much as N and up to 100 times more K than the treated wood residues. The absorption of N, P, and K to the ash/charcoal residues increased significantly at a substrate temperature of 300°C compared to a substrate temperature of 20°C. In absolute numbers, the leaching of N, P, and K from the impregnated ash/charcoal residues was in the range of the release by the impregnated solid wood residues, whilst the relative rate of nutrient leachi... Mostrar Tudo |
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Palavras-Chave: |
Alemanha; Brasil; Resíduo de madeira; Retenção. |
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Thesagro: |
Solo. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02437naa a2200241 a 4500
001 1681337
005 2008-01-11
008 2007 bl --- 0-- u #d
100 1 $aDÜNISCH, O.
245 $aRetention properties of wood residues and their potential for soil amelioration.
260 $c2007
520 $aThe particle size distribution, the nutrient content and the sorption behaviour of six solid wood and ash/charcoal residues collected in three wood-processing companies in Germany and Brazil were investigated in order to elucidate the potential of these residues for the development of new products for soil amelioration. The absorption of N, P, and K by the residues and the leaching of nutrients from impregnated samples were studied in the laboratory at substrate temperatures of 20 and 300°C. The release of elements by the impregnated samples and the sorption behaviour of ash/charcoal incorporated in the soil were also studied in the field on a temperate site (Hamburg, 53°32'N 09°59'E), on a subtropical site (Ivaí, 25°15'S 50°45'W), and on a tropical site (Aripuanã, 10°09'S 59°26'W). Under laboratory conditions the solid wood residues absorbed 2.0?9.1% of the N, 0.1?0.4% of the P, and 1.0?8.5% of the K available in the impregnation solution. At a temperature of 20°C, selected sieve fractions of the ash/charcoal residues absorbed up to twice as much as N and up to 100 times more K than the treated wood residues. The absorption of N, P, and K to the ash/charcoal residues increased significantly at a substrate temperature of 300°C compared to a substrate temperature of 20°C. In absolute numbers, the leaching of N, P, and K from the impregnated ash/charcoal residues was in the range of the release by the impregnated solid wood residues, whilst the relative rate of nutrient leaching was strongly reduced. The field experiments confirmed the results obtained in the laboratory and indicated that ash/charcoal residues are suitable raw materials for the development of new products for soil amelioration, in particular for application under humid climate conditions.
650 $aSolo
653 $aAlemanha
653 $aBrasil
653 $aResíduo de madeira
653 $aRetenção
700 1 $aLIMA, V. C.
700 1 $aSEEHANN, G.
700 1 $aDONATH, J.
700 1 $aMONTÓIA, V. R.
700 1 $aSCHWARZ, T.
773 $tWood Science and Technology$gv. 41, n. 2, p. 169-189, fev. 2007.
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Registro original: |
Embrapa Amazônia Ocidental (CPAA) |
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Registro Completo
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Biblioteca(s): |
Embrapa Semiárido. |
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Data corrente: |
01/12/2014 |
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Data da última atualização: |
04/06/2019 |
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Tipo da produção científica: |
Capítulo em Livro Técnico-Científico |
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Autoria: |
SILVA, P. C. G. da. |
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Afiliação: |
PEDRO CARLOS GAMA DA SILVA, CPATSA. |
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Título: |
Trabalho feminino na fruticultura irrigada no Submédio do Vale do São Francisco. |
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Ano de publicação: |
2014 |
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Fonte/Imprenta: |
In: OLIVEIRA, L. M. S. R. de; FLORES, F. T. (Org.). Mulheres em perspectivas: relações de gênero, trabalho e saúde. Curitiba: CRV, 2014. |
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Páginas: |
p. 75-93. |
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ISBN: |
978-85-8042-912-1 |
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Idioma: |
Português |
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Conteúdo: |
O objetivo deste capítulo é analisar o mercado de trabalho feminino na fruticultura irrigada no Submédio do Vale do São Francisco, com ênfase nas condições dos contratos formais e informais de trabalho temporário que se estabelecem nas unidades produtivas. |
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Palavras-Chave: |
Agricultural development; Contratos formais; Contratos informais; Mão de obra feminina; Políticas pública; Trabalhadora rural; Trabalho feminino; Vale do São Francisco. |
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Thesagro: |
Desenvolvimento rural; Fruticultura; Mercado de Trabalho; Mulher rural; Trabalho Temporário. |
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Thesaurus NAL: |
Agriculture; Rural development. |
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Categoria do assunto: |
B Sociologia Rural |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/198144/1/TRABALHO-FEMININO-NA-FRUTICULTRA-IRRIGADA-NO-SUBMEDIO-DO-VALE-DO-SAO-FRANCISCO.pdf
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Marc: |
LEADER 01299naa a2200325 a 4500
001 2001207
005 2019-06-04
008 2014 bl uuuu u00u1 u #d
020 $a978-85-8042-912-1
100 1 $aSILVA, P. C. G. da
245 $aTrabalho feminino na fruticultura irrigada no Submédio do Vale do São Francisco.
260 $c2014
300 $ap. 75-93.
520 $aO objetivo deste capítulo é analisar o mercado de trabalho feminino na fruticultura irrigada no Submédio do Vale do São Francisco, com ênfase nas condições dos contratos formais e informais de trabalho temporário que se estabelecem nas unidades produtivas.
650 $aAgriculture
650 $aRural development
650 $aDesenvolvimento rural
650 $aFruticultura
650 $aMercado de Trabalho
650 $aMulher rural
650 $aTrabalho Temporário
653 $aAgricultural development
653 $aContratos formais
653 $aContratos informais
653 $aMão de obra feminina
653 $aPolíticas pública
653 $aTrabalhadora rural
653 $aTrabalho feminino
653 $aVale do São Francisco
773 $tIn: OLIVEIRA, L. M. S. R. de; FLORES, F. T. (Org.). Mulheres em perspectivas: relações de gênero, trabalho e saúde. Curitiba: CRV, 2014.
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