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| Registros recuperados : 144 | |
| 84. |  | GUTERRES, D. B.; SALTON, J. C.; MIELNICZUK, J.; BAYER, C.; BOENI, M.; CONCEIÇÃO, P. C. Agregação e estabilidade de agregados do solo em sistemas agropecuários em Mato Grosso do Sul. In: CONGRESSO BRASILEIRO DE CIÊNCIA DO SOLO, 30., 2005, Recife. Solos: sustentabilidade e qualidade ambiental. [S.l.]: Sociedade Brasileira de Ciência do Solo, 2005. 1 CD-ROM.| Biblioteca(s): Embrapa Agropecuária Oeste. |
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| 85. | | GUTERRES, D. B.; SALTON, J. C.; BOENI, M.; CONCEIÇÃO, P. C.; MIELNICZUK, J.; BAYER, C. Agregação em um latossolo submetido a diferentes sistemas de manejo de solo na região centro-oeste do Brasil. In: SALÃO DE INICIAÇÃO CIENTÍFICA, 16., 2004, Porto Alegre. Livro de resumos. Porto Alegre: UFRGS, 2004. p. 218-219.| Biblioteca(s): Embrapa Agropecuária Oeste. |
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| 86. | | MIELNICZUK, J.; BURLE, M. L.; FERNANDES, S. V.; BAYER, C.; AMADO, T. J. C. Eficiencia da aplicacao de calcario em sistemas de cultura e preparos do solo. In: CONGRESSO BRASILEIRO DE CIENCIA DO SOLO, 25., 1995, Vicosa, MG. O solo nos grandes dominios morfoclimaticos do Brasil e o desenvolvimento sustentado: resumos expandidos. Vicosa: SBCS, 1995. v.4. p.1848-1850.| Biblioteca(s): Embrapa Cerrados; Embrapa Tabuleiros Costeiros. |
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| 88. | | FERNANDES, C. V.; BURLE, M. L.; AMADO, T. J. C.; BAYER, C.; MIELNICZUK, J. Componentes do rendimento e nutrição nitrogenada do milho em diferentes sistemas de cultura. IN: CONGRESSO BRASILEIRO DE CIÊNÇIA DO SOLO, 25., 1995, Viçosa, MG. Resumos expandidos. Viçosa: UFV, 1995. v.3, p. 1833-1834.| Biblioteca(s): Embrapa Tabuleiros Costeiros. |
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| 89. | | FERNANDES, S. V.; BURLE, M. L.; AMADO, T. J. C.; BAYER, C.; MIELNICZUK, J. Componentes do rendimento e nutricao nitrogenada do milho em diferentes sistemas de cultura. In: CONGRESSO BRASILEIRO DE CIENCIA DO SOLO, 25., 1995, Vicosa, MG. O solo nos grandes dominios morfoclimaticos do Brasil e o desenvolvimento sustentado: resumos expandidos. Vicosa: SBCS, 1995. v.4. p.1833-1834.| Biblioteca(s): Embrapa Cerrados. |
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| 90. | | BAYER, C.; MARTIN-NETO, L.; MIELNICZUK, J.; DIECKOW, J.; AMADO, T. J. C. C and N stocks and the role of molecular recalcitrance and organomineral interaction in stabilizing soil organic matter in a subtropical acrisol managed under no-tillage. Geoderma, Amsterdam, v. 133, n. 3-4, p. 258-2668, 2006.| Biblioteca(s): Embrapa Instrumentação. |
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| 92. | | BAYER, C.; MARTIN-NETO, L.; MIELNICZUK, J.; PAVINATO, A.; DIECKOW, J. Carbon sequestration in two brazilian cerrado soils under no-till. Soil & Tillage Research, Amsterdam, v. 86, n. 2, p. 237-245, 2006.| Biblioteca(s): Embrapa Instrumentação. |
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| 93. | | MARTORANO, L. G.; BERGAMASCHI, H.; DALMAGO, G. A.; FARIA, R. T. de; MIELNICZUK, J.; COMIRAN, F. Indicadores da condição hídrica do solo com soja em plantio direto e preparo convencional. Revista Brasileira de Engenharia Agrícola e Ambiental, v. 13, n. 4, p. 397-405, mar./abr. 2009.| Biblioteca(s): Embrapa Algodão; Embrapa Amazônia Oriental. |
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| 94. | | MARTORANO, L. G.; BERGAMASCHI, H.; DALMAGO, G. A.; FARIA, R. T. de; MIELNICZUK, J.; COMIRAN, F. Indicadores da condição hídrica do solo com soja em plantio direto e preparo convencional. Revista Brasileira de Engenharia Agrícola e Ambiental, Campina Grande, v. 13, n. 4, p. 397-405, 2009.| Biblioteca(s): Embrapa Trigo. |
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| 96. | | DIEKOW, J.; MIELNICZUK, J.; GONZALEZ-VILA, F. J.; KNICKER, H.; BAYER, C.; MARTIN NETO, L. Matéria orgânica do solo em sistemas de culturas caracterizada por pirólise analítica. LATIN AMERICAM SYMPOSIUM ON SCANNING PROBE MICROSCOPY, 3., 2005, Ouro Preto. [Anais eletrônicos...]. Ouro Preto: SBMN, 2005. 1 CD-ROM.| Biblioteca(s): Embrapa Instrumentação. |
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| 97. | | BAYER, C.; MIELNICZUK, J.; AMADO, T. J. C.; MARTIN-NETO, L.; FERNANDES, S. V. Organic matter storage in a sandy clay loam Acrisol affected by tillage and cropping systems in southern Brazil. Soil & Tillage Research, Amsterdam, v. 54, n. 1/2, p. 101-109, Marc. 2000.| Biblioteca(s): Embrapa Instrumentação; Embrapa Pantanal. |
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| 98. | | CONCEIÇÃO, P. C.; BOENI, M.; DIECKOW, J.; BAYER, C.; MARTIN-NETO, L.; MIELNICZUK, J. Eficiência do politungstato de sódio no fracionamento densimétrico da matéria orgânica do solo. Revista Brasileira de Ciência do Solo, Viçosa, v. 31, n. 6, p. 1301-1310, 2007.| Biblioteca(s): Embrapa Instrumentação. |
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| 100. | | CONCEIÇÃO, P. C.; BOENI, M.; DIECKOW, J.; MARTIN-NETO, L.; BAYER, C.; MIELNICZUK, J.; ANZANELLO, R. Estudo da proteção física da matéria orgânica do solo pelo fracionamento densimétrico com iodeto e politungstato de sódio. In: ENCONTRO BRASILEIRO DE SUBSTÂNCIAS HÚMICAS, 6., 2005, Rio de Janeiro. Resumos expandidos... Rio de Janeiro: EMBRAPA Solos, 2005. p. 112-115.| Biblioteca(s): Embrapa Instrumentação. |
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| Registros recuperados : 144 | |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Gado de Corte. Para informações adicionais entre em contato com cnpgc.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Gado de Corte. |
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Data corrente: |
19/03/2010 |
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Data da última atualização: |
27/04/2010 |
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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: |
DIECKOW, J.; BAYER, C.; CONCEIÇÃO, P. C.; ZANATTA, J. A.; MARTIN NETO, L.; MILORI, D. M. B. P.; SALTON, J. C.; MACEDO, M. C. M.; MIELNICZUK, J.; HERNANI, L. C. |
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Afiliação: |
J. DIECKOW, UFPR; C. BAYER, UFRGS; P. C. CONCEIÇÃO, UNIVERSIDADE TECNOLÓGICA FEDERAL DO PARANÁ - DOIS VIZINHOS; J. A. ZANATTA, UFRGS; LADISLAU MARTIN NETO, CNPDIA - Labex USA; DEBORA MARCONDES BASTOS P MILORI, CNPDIA; JULIO CESAR SALTON, CPAO; MANUEL CLAUDIO MOTTA MACEDO, CNPGC; J. MIELNICZUK, UFRGS; LUIS CARLOS HERNANI, CPAO. |
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Título: |
Land use, tillage, texture and organic matter stock and composition in tropical and subtropical brazilian soils. |
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Ano de publicação: |
2009 |
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Fonte/Imprenta: |
European Journal of Soil Science, Oxford, v. 60, p. 240-249, Apr. 2009. Issue 2. |
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DOI: |
10.1111/j.1365-2389.2008.01101.x |
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Idioma: |
Inglês |
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Conteúdo: |
We examined the influence of land use change, tillage system and soil texture on organic carbon (C) stocks and on organic matter composition of tropical and subtropical soils from Brazil at four long-term experiments (11–25 years) based on fine- and coarse-textured soils. Soil samples were collected from the 0–5, 5–10 and 10–20 cm layers of conventional tillage (CT) and no-till (NT) plots, and of the adjoining soil under native vegetation (NV) of Cerrado (tropical) or grassland (subtropical). Conversion of NV to CT resulted in losses of 7–29% of the original C stock of 0–20 cm; conversion to NT increased this C stock by 0–12% compared with CT. Organic matter composition of the 0–5 cm layer, assessed by solid state CPMAS-13C-NMR, ESR and laser induced fluorescence spectroscopies, was affected by land use and tillage systems. Conversion of NV to CT decreased O-alkyl and increased aromatic, carbonyl, aromatic/O-alkyl ratio, free radicals concentration and fluorescence signal. The opposite trend was observed when NT replaced CT. The relative losses and gains of C and qualitative changes resulting from land use and tillage were less evident in fine- than in coarse-textured soils, suggesting a greater resistance and a smaller resilience of fine- compared with coarse-textured soils. The direct relation between increase in C stock and increase in potentially labile moieties (e.g. O-alkyl) and the decrease in more recalcitrant moieties (e.g. aromatics) in NT soils suggests that spatial inaccessibility by aggregates is playing a major role, compared with selective preservation, in promoting C accumulation in NT soils. MenosWe examined the influence of land use change, tillage system and soil texture on organic carbon (C) stocks and on organic matter composition of tropical and subtropical soils from Brazil at four long-term experiments (11–25 years) based on fine- and coarse-textured soils. Soil samples were collected from the 0–5, 5–10 and 10–20 cm layers of conventional tillage (CT) and no-till (NT) plots, and of the adjoining soil under native vegetation (NV) of Cerrado (tropical) or grassland (subtropical). Conversion of NV to CT resulted in losses of 7–29% of the original C stock of 0–20 cm; conversion to NT increased this C stock by 0–12% compared with CT. Organic matter composition of the 0–5 cm layer, assessed by solid state CPMAS-13C-NMR, ESR and laser induced fluorescence spectroscopies, was affected by land use and tillage systems. Conversion of NV to CT decreased O-alkyl and increased aromatic, carbonyl, aromatic/O-alkyl ratio, free radicals concentration and fluorescence signal. The opposite trend was observed when NT replaced CT. The relative losses and gains of C and qualitative changes resulting from land use and tillage were less evident in fine- than in coarse-textured soils, suggesting a greater resistance and a smaller resilience of fine- compared with coarse-textured soils. The direct relation between increase in C stock and increase in potentially labile moieties (e.g. O-alkyl) and the decrease in more recalcitrant moieties (e.g. aromatics) in NT soils suggests that spati... Mostrar Tudo |
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Thesagro: |
Solo. |
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Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
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Marc: |
LEADER 02425naa a2200253 a 4500
001 1661828
005 2010-04-27
008 2009 bl --- 0-- u #d
024 7 $a10.1111/j.1365-2389.2008.01101.x$2DOI
100 1 $aDIECKOW, J.
245 $aLand use, tillage, texture and organic matter stock and composition in tropical and subtropical brazilian soils.
260 $c2009
520 $aWe examined the influence of land use change, tillage system and soil texture on organic carbon (C) stocks and on organic matter composition of tropical and subtropical soils from Brazil at four long-term experiments (11–25 years) based on fine- and coarse-textured soils. Soil samples were collected from the 0–5, 5–10 and 10–20 cm layers of conventional tillage (CT) and no-till (NT) plots, and of the adjoining soil under native vegetation (NV) of Cerrado (tropical) or grassland (subtropical). Conversion of NV to CT resulted in losses of 7–29% of the original C stock of 0–20 cm; conversion to NT increased this C stock by 0–12% compared with CT. Organic matter composition of the 0–5 cm layer, assessed by solid state CPMAS-13C-NMR, ESR and laser induced fluorescence spectroscopies, was affected by land use and tillage systems. Conversion of NV to CT decreased O-alkyl and increased aromatic, carbonyl, aromatic/O-alkyl ratio, free radicals concentration and fluorescence signal. The opposite trend was observed when NT replaced CT. The relative losses and gains of C and qualitative changes resulting from land use and tillage were less evident in fine- than in coarse-textured soils, suggesting a greater resistance and a smaller resilience of fine- compared with coarse-textured soils. The direct relation between increase in C stock and increase in potentially labile moieties (e.g. O-alkyl) and the decrease in more recalcitrant moieties (e.g. aromatics) in NT soils suggests that spatial inaccessibility by aggregates is playing a major role, compared with selective preservation, in promoting C accumulation in NT soils.
650 $aSolo
700 1 $aBAYER, C.
700 1 $aCONCEIÇÃO, P. C.
700 1 $aZANATTA, J. A.
700 1 $aMARTIN NETO, L.
700 1 $aMILORI, D. M. B. P.
700 1 $aSALTON, J. C.
700 1 $aMACEDO, M. C. M.
700 1 $aMIELNICZUK, J.
700 1 $aHERNANI, L. C.
773 $tEuropean Journal of Soil Science, Oxford$gv. 60, p. 240-249, Apr. 2009. Issue 2.
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