International Journal of Environment and Climate Change

A survey was carried out in major sesame-growing areas of Northern Telangana Zone in high, medium and low productivity zones of districts namely Nizamabad, Jagtial, Nirmal and Kamareddy. 50 surface soil samples (0-15 cm) were collected from each zone and a total of 150 surface soil samples were analyzed for various physical, physicochemical and chemical properties the results showed that the bulk density ranged from 1.10 to 1.56 Mg m^-3, from 1.20 to 1.60 Mg m^-3 and from 1.20 to 1.63 Mg m^-3 in high, medium and low productivity zones respectively. Water holding capacity ranged from 30.00 to 56.80%, from 20.80 to 56.50% and from 19.60 to 51.70% in high, medium and low productivity zones respectively. pH ranged from 7.11 to 7.82, from 6.45 to 8.51 and from 6.81 to 7.46 in high, medium and low productivity zones respectively. EC ranged from 0.32 to 0.46 d Sm^-1, from 0.32 to 0.56 d Sm^-1 and from 0.12 to 0.56 d Sm^-1   in high, medium and low productivity zones respectively. Organic carbon ranged from 0.48 to 1.08%, from 0.23 to 0.72% and from 0.21 to 0.64% in high, medium and low productivity zones respectively. Available nitrogen ranged from 176.20 to 279.70 kg ha^-1, from 116.50 to 261.50 kg ha^-1 and from 76.40 to 139.80 kg ha^-1 in high, medium and low productivity zones respectively. Available phosphorus ranged from 13.41 to 82.33 kg ha^-1, from 11.81 to 64.71 kg ha^-1 and from 19.98 to 49.06 kg ha^-1 in high, medium and low productivity zones respectively. Available potassium ranged from 213.00 to 562.00 kg ha^-1, from 126.25 to 585.00 kg ha^-1 and from 182.50 to 562.50 kg ha^-1 in high, medium and low productivity zones respectively.