Household base-line study: agricultural extension and research project [of Nawalparasi and Jhapa districts, tarai areas, Nepal]

affectation de ressources agricultural structure agriculture extensive asia asie crops cultivos desarrollo de recursos economia economic plants economics economie empresas enterprises entreprise extensive farming farm size farm structure farming systems hogares households human population land use llanuras nepal petite entreprise physiographic features plaine plains plantas plante plante de culture plants population population humaine recherche research resource allocation resource development structure agricole structure d'exploitation agricole utilisation du sol