The role of irrigation in improving food security and alleviation of poverty in North-western Ethiopia. A case of traditional irrigation in Libokemkem district

abastecimiento de agua agriculteur agricultores agricultura de subsistencia agriculture de subsistance approvisionnement en eau cultivo de temporal cultivos alimenticios culture pluviale ethiopia etiopia farm inputs farm results farmers food crops food production food security hogares households income insumos agricolas irrigation livestock management manejo del ganado moyen de production agricole plante alimentaire pobreza poverty production alimentaire rainfed farming renta revenu riego seguridad alimentaria subsistence farming technologie traditionnelle tecnologia tradicional traditional technology water supply