As indicated in the preceding paper, alternatives for shifting cultivation systems are needed in many tropical areas. To be acceptable to farmers such systems should be economically viable: this usually means that they should not rely on expensive external inputs, but that they should make full use of local natural resources of soil, climate, vegetation, crops and animals as well as of available human resources. Such alternatives may be sought in the context of a broad new movement, which arose from a critical evaluation of the "green revolution" approach. Characteristics of this search for low External Input Sustainable Agriculture (LEISA) are given in table 2.1. Although broad concepts and desirable characteristics have been defined, application to any particular situation is not easy and usually compromises are necessary.
Ano de publicação
1991
Autores
Idioma
English
Palavras-chave
erosion control, fallow, intercropping, rooting
Geográfico
Indonesia
