Afghanistan: survey of irrigation possibilities in the Hari Rud and Upper Kabul river basins: Upper Kabul basin land use

agricultural development agricultural economics agronomia agronomie agronomy bassin versant budget budgets conduite de la culture cost benefit analysis crop management cropping systems crops cultivos cultural methods exploitation agricole explotaciones agrarias farm income farm inputs farm management farms gestion de l'exploitation agricole income labour land use manejo de fincas manejo del cultivo mode de culture natural resources planification planning plante de culture presupuesto production possibilities recursos naturales rendement rendimiento renta ressource naturelle revenu revenu de l'exploitation sistemas de cultivo trabajo travail trigo utilisation des terres value added vignoble vineyards water requirements watersheds wheats yields