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Revista mexicana de ciencias agrícolas

versão impressa ISSN 2007-0934

Resumo

CAMAS GOMEZ, Robertony et al. Automated land evaluation for cropping, maize and sesame in relay intercropping. Rev. Mex. Cienc. Agríc [online]. 2010, vol.1, n.2, pp.119-131. ISSN 2007-0934.

In the Frailesca, Chiapas, maize is the main crop in monoculture. It is mainly Brown in intermediate terrace soils, located physiographically between lowland soils on river banks and hillsides. The aim of this study was to create a model to plan the establishment of maize (Zea mays L.) as a seasonal crop and sesame (Sesamun indicum L.) as a relay crop after maize. The model was created by applying the FAO methodology for automatic land evaluation, ALES version 4.5. In order to do this, technical, cartographic and field information was gathered in order to create a data base. Maps were processed using the program Arc View 3.2. Twenty two units of land were classified, considering the soil's physical and chemical characteristics. Out of the total area evaluated, maize displayed the following physical aptitudes: adequate 2.3%, moderate 28.2%, marginal 50.3% and inadequate 19.2%. For the relay sesame; 19.2% was adequate, 61.5% moderate and 19.2% inadequate. The simulated yields were very similar to the validation and demonstration parcels established in the area. It was concluded that out of the total area evaluated and cultivated with maize in monoculture, 80.7% can be intensified by introducing relay sesame, and that the automated land system helps create a reliable plan for soil use.

Palavras-chave : Sesamun indicum L.; expert system.

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