19 اکتوبر 1997 Rebuilding lost soil fertility A tool for quantitative farm analysis Intensification of swidden agriculture in the Philippines Poor soils need organic matter Indigenous green manure in Nepal New Kekulam Recycling household waste in Egypt Biomass transfer
01 جنوری 1987 This book is an in-depth analysis of the problems faced by the native peoples of Sarawak, most of whom live in longhouse communities in Borneo's tropical forests. It describes the traditional social and economic system of swidden agriculture, and how their forest resources and way of life are...