Somalia: water control and management of the Shebelli River, vol 5, soils and agriculture

abastecimiento de agua aerial surveying agricultura agricultura de regadio agriculture analyse de sol approvisionnement en eau aptitude des terres aridoculture bassin versant besoin en eau calidad del agua cartografia cartographie cartography classification des sols clima climat climate conduite de la culture crop management crops cultivos cultural methods dry farming elemento primario del suelo encuestas sobre explotaciones family budget farm income farm inputs farm size farm surveys flooding fotografia irrigated farming irrigation labour land suitability manejo del cultivo methode methods mode de culture necesidades de agua photographie photography plante de culture reconocimiento de suelos sales soil soil analysis soil chemicophysical properties soil classification soil parent materials soil surveys sol suelo tenure water water quality water requirements water supply watersheds yields