AgricultureAgronomyCrop SciencesCrop EcologyCrop ProductionCropping SystemsAgricultural Production SystemsCereal CropsCrop-environment InteractionsDryland Cropping SystemsFood CropsLegume CropsAgroecological Cropping SystemsDryland Sorghum ProductionLegume CultivationMillet CultivationMillet-based Cropping SystemsSemi-arid ClimateSorghum Cultivation
Sorghum and the millets are the most important food crops of the semi-arid tropics (SAT), an ecological zone that almost circles the earth, beginning in hina, continuing through India, and extending over most of Africa and parts of the southern United States. According to the FAO Production Yearbook 1977, the following are the approximate production areas in thousands of hectares under sorghum and millets: Sorghum Africa 13 810, Asia 18 320, North and Central America 7460, South America 3260, World 43 650; Milleis Africa 16 360, Asia 45 730, South America 250, World 65 450