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| Registros recuperados : 175 | |
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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: |
14/02/1997 |
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Data da última atualização: |
14/02/1997 |
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Autoria: |
GOEDERT, W. J. |
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Título: |
Management of acid tropical soils in the savannas of South America. |
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Ano de publicação: |
1987 |
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Fonte/Imprenta: |
In: IBSRAM INAUGURAL WORKSHOP, 1985, Yurimaguas, Peru / Brasilia, Brasil. Proceedings. Bangkok, Thailand: IBSRAM, 1987. |
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Páginas: |
p.109-127. |
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Idioma: |
Inglês |
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Conteúdo: |
The environmental features of the acid savannas of South America make them suitable for agriculture. The soil constraints are mostly chemical, with generalized nutrient deficiency and excess of active Al. Subsistence cropping without inputs of fertilizer and lime seems unlikely in the long run. Therefore, any soil-management strategy must concentrate efforts on: (a) decreasing the detrimental effects od soil acidity; (b) building the fertility status, especially that of a Phosphorus; (c) managing the soil surface properly to avoid compaction and erosion; and (d) improving root growth conditions below the plow layer. The kowledge already available is sufficient to support a cooperative program among institutions, focusing on soil-management validation. A network should concentrate its efforts on (a) testing the level of extrapolation of actual research results obtained in a few sites, (b) validating the technology already availabel to solve the main soil constraints, namely liming and phosphate fertilization and, (c) determining the most efficient input level for typical farming systems. |
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Palavras-Chave: |
America do Sul; Brasil; Manejo do solo: Calagem; Phosphate fertilizers; Savana. |
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Thesagro: |
Cerrado; Fertilizante Fosfatado; Solo Ácido. |
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Thesaurus NAL: |
acid soils; Brazil; liming; savannas; soil management; South America. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01947naa a2200301 a 4500
001 1552371
005 1997-02-14
008 1987 bl uuuu u00u1 u #d
100 1 $aGOEDERT, W. J.
245 $aManagement of acid tropical soils in the savannas of South America.
260 $c1987
300 $ap.109-127.
520 $aThe environmental features of the acid savannas of South America make them suitable for agriculture. The soil constraints are mostly chemical, with generalized nutrient deficiency and excess of active Al. Subsistence cropping without inputs of fertilizer and lime seems unlikely in the long run. Therefore, any soil-management strategy must concentrate efforts on: (a) decreasing the detrimental effects od soil acidity; (b) building the fertility status, especially that of a Phosphorus; (c) managing the soil surface properly to avoid compaction and erosion; and (d) improving root growth conditions below the plow layer. The kowledge already available is sufficient to support a cooperative program among institutions, focusing on soil-management validation. A network should concentrate its efforts on (a) testing the level of extrapolation of actual research results obtained in a few sites, (b) validating the technology already availabel to solve the main soil constraints, namely liming and phosphate fertilization and, (c) determining the most efficient input level for typical farming systems.
650 $aacid soils
650 $aBrazil
650 $aliming
650 $asavannas
650 $asoil management
650 $aSouth America
650 $aCerrado
650 $aFertilizante Fosfatado
650 $aSolo Ácido
653 $aAmerica do Sul
653 $aBrasil
653 $aManejo do solo: Calagem
653 $aPhosphate fertilizers
653 $aSavana
773 $tIn: IBSRAM INAUGURAL WORKSHOP, 1985, Yurimaguas, Peru / Brasilia, Brasil. Proceedings. Bangkok, Thailand: IBSRAM, 1987.
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