Possibilities of Increasing World Food Production, Issues 10-15

adequate Africa agricultural arable land areas Asia Australia average basin benefit better breeding cattle cereals climate conservation consumption crop rotation crop yields deficiencies desert locust disease drainage East economic efliciency erosion estimated Europe existing extensive factors farmers farming feed field figures first fish fish production fisheries fishing flood food production food supplies forest grass grasslands grazing high yields important improved varieties increase India irrigation Japan kilograms kilograms per hectare Latin America legumes livestock livestock numbers livestock production locust losses maize manure methods milk million hectares million tons monsoon nitrogen numbers nutrients nutrition output Pakistan pastures percent pests plant plant breeding population possible potential practices present problem protein rainfall regions require result rice savannas scientific sheep shifting cultivation soil fertility South technical tion tons per hectare tropical underdeveloped United United Arab Republic Uruguay utilization vegetation wheat