Assessment of Physico-chemical Properties of Soil from Different Departments of NAI, SHUATS, Prayagraj, U.P., India

An Assessment of Physico-chemical properties of soil from different departments of NAI, SHUATS, Prayagraj carried out 2022-23. The prime objectives of this study were to carry out the physico-chemical properties of soil at different depths of various department research farms to determine the availability of macronutrients and micronutrients in soil of these soil sample provide the assessment 6 sampling locations were selected. Soil samples were collected with depth of 0-15 and 15-30 cm respectively. The soil colour dry condition varied from light yellowish brown, pale olive, light olive brown, yellowish brown, olive yellow, dark brown and in wet condition varied from olive brown, dark brown, olive yellow and dark yellowish. The sand, silt and clay varied from 53 to 65 %, 19 to 27 % and 15 to 20 % respectively, soil texture was dominantly sandy loam in every site. The bulk density ranged from 1.20 to 1.34 Mg m⁻3. The practical density ranged from 2.68 to 2.94 Mg m⁻3. The pore space ranged from 43.25 to 49.50 %. The water holding capacity ranged from 41.75 to 48.25 %. The soil pH ranged from 7.37 to 7.71. The electrical conductivity ranged from 0.21 to 0.48 dS m-1. The soil organic carbon ranged from 0.32 to 0.45 %. The available nitrogen ranged from 235.17 to 261.12 kg ha-1. The available phosphorous ranged from 19.66 to 25.50 kg ha-1. The available potassium ranged from 152.00 to 214.00 kg ha-1. The available Sulphur ranged from 8.80 to 14.42 mg kg-1. The available zinc ranged from 0.58 to 0.93 mg kg-1. The available boron ranged from 0.58 to 1.10 mg kg-1. The available iron ranged from 5.92 to 8.70 mg kg-1. The available manganese ranged from 3.21 to 3.61 mg kg-1. The available copper ranged from 2.00 to 2.94 mg kg-1. There is an including awareness of the need to pay greater attention in the role of macronutrients enhancement in the soil for good soil health and proper nutrition of plant so as to attain optimum economic yield and soil is suitable for all major tropical and sub-tropical crops.