Evaluation of Soil Nutrient Index and Physico-Chemical Parameters of Soil from Different Blocks of Kurnool District, Andhra Pradesh, India

The evaluation of Physico-chemical properties of soil of different blocks of Kurnool district was carried out in 2021-2022. The main objectives of this study is to evaluate the Physico-chemical properties of soil and to analyze the soil nutrient index of soil. For evaluation 9 sampling sites were selected with different depths of 0-15cm, 15-30cm and 30-45cm. The research findings revealed that the Bulk density ranges from 1.33 to 1.52 (Mg m-3). The Particle density ranges from 2.36 to 2.66 (Mg m-3). The Pore space ranges from 46.66 to 59.09 (%). The Water Holding Capacity ranges from 49.52 to 60.22 (%). The Soil pH ranges from 7.66 to 8.44. The Electrical Conductivity ranges from 0.15 to 0.57 (dS m- 1). The Soil Organic Carbon ranges from 0.35 to 0.66 (%). The Available Nitrogen ranges from 94.30 to 218.58 (kg ha-1). The Available Phosphorous ranges from 12.7 to 52.6 (kg ha-1). The Available Potassium ranges from 135.42 to 402.4 (kg ha-1). The Exchangeable Calcium ranges from 13.66 to 34.62 (cmol (p+) kg-1). The Exchangeable Magnesium ranges from 4.21 to 8.35 (cmol (p+) kg-1). The Available Zinc ranges from 0.16 to 0.57 (ppm). The Available Copper ranges from 0.18 to 0.77 (ppm). The Available Iron ranges from 3.22 to 6.89 (ppm). Based on the outcomes soil is good for cultivation of different crops and this data will aid farmers in application of nutrients to soil and also in maintaining good soil health.