Socio-economic assessment of coconut based production systems in Tanzania - a case study in Tanga, Pwani and Dares-Salaam region

coco coconuts cropping systems cultivo intercalado culture intercalaire estudios de factibilidad farm income feasibility studies intercropping noix de coco productividad productivity profitability rendement rendimiento rentabilidad returns revenu de l'exploitation sistemas de cultivo tanzania tanzanie yields