Iran: Integrated Planning of Irrigated Agriculture in the Varamin and Garmsar Plains: the development plan

abastecimiento de agua agricultura de regadio animal production approvisionnement en eau classification des terres climatologia climatologie climatology conduite de la culture cost benefit analysis credit credito crop management development projects economic situation encuestas entraide agricole farm helper services farm management farm size gestion de l'exploitation agricole gestion des ressources hidrogeologia hidrologia hydrogeologie hydrogeology hydrologie hydrology investment irrigated farming land classification manejo de fincas manejo del cultivo mutualidad agraria operating costs planification planning production production animale proyectos de desarrollo reconocimiento de suelos rendement rendimiento resource management ressource en eau soil surveys surveys taille de l'exploitation agricole water resources water supply yields