Assessment of Physico-chemical Properties of Soil from Different Blocks of Visakhapatnam District, Andhra Pradesh

Abstract

An Assessment of Physico-chemical properties of soil from different blocks of Visakhapatnam district, Andhra Pradesh was carried out in 2022-23. To determine the availability of macro nutrient in soil of these soil samples and provide the assessment of 9 sampling locations were selected. Soil samples were collected at the depth of 0-15 cm, 15-30 cm and 30-45 cm respectively. Soil textural classes were Sandy loam and Loamy sand. Bulk Density varies from (1.36 to 1.59 Mg m-3). Particle Density varies from (2.37 to 2.54 Mg m-3). %Pore Space (39.85 to 48.32 %), The Water Holding Capacity varies from (34.89 to 44.28%), the physical condition of the soil was found good. The pH of soil is Slightly alkaline in nature (6.82 to 8.08) and the Electrical Conductivity (0.17 to 0.37 dSm1) was suitable for all crops. Organic carbon was found low (0.33 to 0.47%). These soils have low Nitrogen (197.00 to 220.00 kg ha-1) in all villages. Phosphorus (16.96 to 26.68 kg ha1) is found medium to high. Potassium (201.96 to 266.01 kg ha-1) is found medium in range. Calcium (3.22 to 5.66 meq 100g-1) and Magnesium (1.85 to 2.79 meq 100g-1) are sufficient in this soil. 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.