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| Registros recuperados : 135 | |
| 52. |  | ROCHA, F. E. de C.; ZOBY, J. L. F.; GASTAL, M. L.; XAVIER, J. H. V. Mapeamento das relações interpessoais em três assentamentos de reforma agrária de Unaí, MG. Cadernos de Ciência e Tecnologia, Brasília, v. 20, n. 2, p. 305-323, maio/ago. 2003.| Biblioteca(s): Embrapa Cerrados; Embrapa Unidades Centrais. |
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| Registros recuperados : 135 | |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Cerrados. Para informações adicionais entre em contato com cpac.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Cerrados. |
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Data corrente: |
07/05/1997 |
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Data da última atualização: |
07/05/1997 |
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Autoria: |
OGAWA, K.; FRANZ, C. A. B.; FOLLE, S. M.; ROCHA, F. E. de C. |
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Título: |
Soil physico-chemical observation on effect of compacted layer destruction of soil by machines. |
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Ano de publicação: |
1997 |
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Fonte/Imprenta: |
Brasilia: JICA / [Planaltina]: EMBRAPA-CPAC, 1997. |
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Páginas: |
81p. |
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Descrição Física: |
4 fotografias coloridas; 43 tabelas; 8 figuras. |
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Idioma: |
Inglês |
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Notas: |
Partial report of EMBRAPA-CPAC/JICA Project: Sustainable Agriculture Development and Natural Resources Conservations in Cerrados. |
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Conteúdo: |
In the large-scale farm in cerrado region simple tillage systems using such as heavy disk harrow by high powered tractor are doing due to variable beginning of rainy season and limitation of tilage time available (Folle, et al., 1994). As a result, soil degradation such as shallow plowing (Shioya et al., 1981, Iwama 1994), destruction of soil aggregate (Nasser et al., 1990) and soil compaction (Iwama et al., 1988, Nasser et al., 1990) are occured. In order to solve these problems, introduction of minimum tillage, using of machines such as mouldboard plow, subsoiler and vibration subsoiler shall be effective. Here, we thought much of soil comparaction problem. Normally, fields in the Cerrados are plower using heavy disk harrow instead of a disk or mouldboard plow, which forms the compacted layer just below the cultivated layer. The compacted layer increases soil harness, and this layer should rescrict the elongation of crop roots (Kubota et al., 1983, Kawauchi et al., 1994). Some treatments to alleviate the effects of the compacted layers are needed. Therefore this field experiment was conducted to observe the effect of compacted layer destruction of soil by disk plow, mouldboard plow, subsoiler and vibrosubsolier in a field of Dark-Red Latosol, from a view point of soil physico-chemical study. |
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Palavras-Chave: |
Brasil; Dark-red latosol; Distrito Federal; Latossolo vermelho-escuro; Propriedade fisico-quimico do solo; Soil chemicophysical properties. |
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Thesagro: |
Cerrado; Compactação do Solo; Mecanização Agrícola. |
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Thesaurus NAL: |
Brazil; Ferralsols; mechanization; soil compaction. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02413nam a2200325 a 4500
001 1552814
005 1997-05-07
008 1997 bl uuuu u00u1 u #d
100 1 $aOGAWA, K.
245 $aSoil physico-chemical observation on effect of compacted layer destruction of soil by machines.
260 $aBrasilia: JICA / [Planaltina]: EMBRAPA-CPAC$c1997
300 $a81p.$c4 fotografias coloridas; 43 tabelas; 8 figuras.
500 $aPartial report of EMBRAPA-CPAC/JICA Project: Sustainable Agriculture Development and Natural Resources Conservations in Cerrados.
520 $aIn the large-scale farm in cerrado region simple tillage systems using such as heavy disk harrow by high powered tractor are doing due to variable beginning of rainy season and limitation of tilage time available (Folle, et al., 1994). As a result, soil degradation such as shallow plowing (Shioya et al., 1981, Iwama 1994), destruction of soil aggregate (Nasser et al., 1990) and soil compaction (Iwama et al., 1988, Nasser et al., 1990) are occured. In order to solve these problems, introduction of minimum tillage, using of machines such as mouldboard plow, subsoiler and vibration subsoiler shall be effective. Here, we thought much of soil comparaction problem. Normally, fields in the Cerrados are plower using heavy disk harrow instead of a disk or mouldboard plow, which forms the compacted layer just below the cultivated layer. The compacted layer increases soil harness, and this layer should rescrict the elongation of crop roots (Kubota et al., 1983, Kawauchi et al., 1994). Some treatments to alleviate the effects of the compacted layers are needed. Therefore this field experiment was conducted to observe the effect of compacted layer destruction of soil by disk plow, mouldboard plow, subsoiler and vibrosubsolier in a field of Dark-Red Latosol, from a view point of soil physico-chemical study.
650 $aBrazil
650 $aFerralsols
650 $amechanization
650 $asoil compaction
650 $aCerrado
650 $aCompactação do Solo
650 $aMecanização Agrícola
653 $aBrasil
653 $aDark-red latosol
653 $aDistrito Federal
653 $aLatossolo vermelho-escuro
653 $aPropriedade fisico-quimico do solo
653 $aSoil chemicophysical properties
700 1 $aFRANZ, C. A. B.
700 1 $aFOLLE, S. M.
700 1 $aROCHA, F. E. de C.
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