[The regional study on project of improvement of field irrigation ability]

arbre fruitier besoin en eau costos costs crops cultivos development projects fruit trees gestion des eaux hortalizas irrigation methods land levelling laser radiation legume necesidades de agua planage plante de culture projet de recherche proyectos de desarrollo rayonnement laser rendement rendimiento research projects siria syria syrie uso del agua utilisation de l'eau vegetables water management water requirements water use yields