Case studies of progressive farming in Central Malawi - Report on a socio-economic survey conducted in selected areas of the /Lilongwe Plateau/.

arachide cacahuete cash crops conduite de la culture crop management cultivos alimenticios cultivos comerciales cultural methods culture de rapport data collection economic situation evaluation farm area farm income farming systems farmland fertilisation fertilizer application food crops ganado groundnuts livestock mais maize manejo del cultivo mode de culture plante alimentaire population rurale production rendement rendimiento revenu de l'exploitation rural population site preparation surface d'exploitation tabac tabaco terre agricole tobacco yields