Computerized land evaluation to a farm in tenjo-colombia

The cornputarized programme ALES (Automated Land Evaluation System) was employed here, it permiting the user or evaluator to construct and expert system, based on established FAO (1976) methodology. This system can be employed in different scales of studies; for this case the entities were calculated in relation to the pedological content of soil phases series taking as base an intensive soil study, made previously to this evaluation. The uses choose were barley, corn and the association kikuyo-tetralite pasture. For each of these uses were construted their proper listing of requirements and a list of soil characteristics to infer the local land qualities. The study was four components: a model for describing each use in physical and economic terms; a model for describing the units of soils to be evaluated; a model for combining components: 1 and 2 above, and determine the capability of soil units for their propose uses; and the presentation of physical, agronomic and economic results. The conclusions from the study were: 1.The field study exhibited a soil pattern higly influenced by the presence of volcanic ash with Hapludalf and Dystrandept as principal soil great groups. 2. The factors which affect the harvest yield have more influence over the profits than those factors which affect the costs of production. 3. Dairy cattle was the most profitable use but requiere large infrastructure and access to capital; barley is ideal because it is relatively mostly rustic, does not need a high capital investment and usualy have a low loss. Grain corn is not recommendable due to its low sustentation price.

• Autores: Madero Morales, Edgar Enrique
• Tipo de recurso: Article of journal
• Fecha de publicación: 1993
• Institución: Universidad Nacional de Colombia
• Repositorio: Universidad Nacional de Colombia
• Idioma: spa
• OAI Identifier: oai:repositorio.unal.edu.co:unal/29485
• Acceso en línea: https://repositorio.unal.edu.co/handle/unal/29485; http://bdigital.unal.edu.co/19533/
• Palabra clave: soils; evaluation; evaluación; suelos
• Rights: openAccess
• License: Atribución-NoComercial 4.0 Internacional