|
Registro Completo |
|
Biblioteca(s): |
Embrapa Cerrados. |
|
Data corrente: |
22/09/1997 |
|
Data da última atualização: |
22/09/1997 |
|
Autoria: |
TOLEDO, J. M.; ZEIGLER, R. S.; TORRES, F. |
|
Título: |
Sustainable utilization of poor acid soils of Tropical America. |
|
Ano de publicação: |
1990 |
|
Fonte/Imprenta: |
Tsukuba, Japan: TARC, 1990. |
|
Páginas: |
p.133-145. |
|
Série: |
(Tropical Agriculture Research Series, 24). |
|
Idioma: |
Inglês |
|
Notas: |
Trabalho apresentado no " 24th International Symposium on Tropical Agriculture Research, Kyoto, Japan, 1990". |
|
Conteúdo: |
Tropical America's 800 million hectares of savannas and forests are characterized by the predominance of acid Oxisols and Utisols with low fertility. These frontier lands are being incorporated into the regions's agricultural production area. Land-clearing and intensication of areas close to infrastructure cause degradation of natural systems. CIAT strategies to reduce pressures for land-clearing in fragile environments include the development of sustainable agropastoral production systems for less fragile savanna environments and the reclamation of already degraded forest lands by the replacement of extensive ranching and shifting cultivation with sustainable agrosivilvopastoral systems. To achieve these specific strategies, it is necessary to promote efficient input use based on adapted components; low-cost management to maximize outputs and effectively use natural and purchased inputs in minimizing negative environmental effects; and maximizing nutrient cycling. New, adapted grass-legume pastures, upland rice, maize, sorghum, soybeans and cassava cultivars are becoming available. Crops can pay for upgrading soil fertility to establish pastures and tree components. Grass-legume pastures with deep and profuse roots can reduce erosion and improve the physical chemical and biological soil conditions for subsequent cropping. To realize the potential of these sustainable integrated systems on poor acid soils, technologies must be based on commercially valuable... |
|
Palavras-Chave: |
Agrosilvopastorial systems; America tropical; Management; Sistema agrosilvipastoril; Sustainability; Sustentabilidade; Tropical America. |
|
Thesagro: |
Cerrado; Manejo; Solo Ácido. |
|
Thesaurus Nal: |
acid soils. |
|
Categoria do assunto: |
-- |
|
Marc: |
LEADER 02413naa a2200313 a 4500
001 1553087
005 1997-09-22
008 1990 bl --- 0-- u #d
100 1 $aTOLEDO, J. M.
245 $aSustainable utilization of poor acid soils of Tropical America.
260 $c1990
300 $ap.133-145.
490 $a(Tropical Agriculture Research Series, 24).
500 $aTrabalho apresentado no " 24th International Symposium on Tropical Agriculture Research, Kyoto, Japan, 1990".
520 $aTropical America's 800 million hectares of savannas and forests are characterized by the predominance of acid Oxisols and Utisols with low fertility. These frontier lands are being incorporated into the regions's agricultural production area. Land-clearing and intensication of areas close to infrastructure cause degradation of natural systems. CIAT strategies to reduce pressures for land-clearing in fragile environments include the development of sustainable agropastoral production systems for less fragile savanna environments and the reclamation of already degraded forest lands by the replacement of extensive ranching and shifting cultivation with sustainable agrosivilvopastoral systems. To achieve these specific strategies, it is necessary to promote efficient input use based on adapted components; low-cost management to maximize outputs and effectively use natural and purchased inputs in minimizing negative environmental effects; and maximizing nutrient cycling. New, adapted grass-legume pastures, upland rice, maize, sorghum, soybeans and cassava cultivars are becoming available. Crops can pay for upgrading soil fertility to establish pastures and tree components. Grass-legume pastures with deep and profuse roots can reduce erosion and improve the physical chemical and biological soil conditions for subsequent cropping. To realize the potential of these sustainable integrated systems on poor acid soils, technologies must be based on commercially valuable...
650 $aacid soils
650 $aCerrado
650 $aManejo
650 $aSolo Ácido
653 $aAgrosilvopastorial systems
653 $aAmerica tropical
653 $aManagement
653 $aSistema agrosilvipastoril
653 $aSustainability
653 $aSustentabilidade
653 $aTropical America
700 1 $aZEIGLER, R. S.
700 1 $aTORRES, F.
773 $tTsukuba, Japan: TARC, 1990.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Cerrados (CPAC) |
|
