Data/hora: 22/05/2024 12:42:01

Biblioteca(s): | Embrapa Cerrados.
Data corrente: | 14/02/1997
Data da última atualização: | 14/02/1997
Autoria: | GOEDERT, W. J.
Título: | Management of acid tropical soils in the savannas of South America.
Ano de publicação: | 1987
Fonte/Imprenta: | In: IBSRAM INAUGURAL WORKSHOP, 1985, Yurimaguas, Peru / Brasilia, Brasil. Proceedings. Bangkok, Thailand: IBSRAM, 1987.
Páginas: | p.109-127.
Idioma: | Inglês
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.
Palavras-Chave: | America do Sul; Brasil; Manejo do solo: Calagem; Phosphate fertilizers; Savana.
Thesagro: | Cerrado; Fertilizante Fosfatado; Solo Ácido.
Thesaurus Nal: | acid soils; Brazil; liming; savannas; soil management; South America.
Categoria do assunto: | --
Registro original: | Embrapa Cerrados (CPAC)
Exemplares: | CPAC - (9316-1) - UPC - PL - -- - CRI4247 -  - CRI4247 - DIS