Southern Telangana Zone(STZ)

This zone includes Vikarabad, Medchal Malkajgiri, Hyderabad, Yadadri Bhuvanagiri, Rangareddy, Mahabubnagar, Nalgonda, Suryapet, Wanaparthy, Nagarkurnool and JogulambaGadwal districts. Annual rainfall ranges from 606 to 853 mm, received mostly from south west monsoon rainfall. During this seasonmaximum temperature ranges between 28 and 380C and minimum ranges between 16 and 250C. There are 19 types of soils in this zone. It has red clayey soils (22.3%), red gravelly loam (16.5%) and alluvio-colluvial soils (14.4% of the area). As a whole, the zone is dominated by different textured red soils with varied depths to an extent of 54.8 per cent and is followed by alluvio-colluvial soils and calcareous soils (11.2%). Predominant crops in this zone include sorghum, cotton, rice, redgram, sesame maize, castor, safflower and groundnut.