Assessment of Spatial Variability of Major and Micro Nutrients in Soils of Satara District, Maharashtra, India

Abstract

Georeferenced surface soil samples from eleven (11) tehsils were delineated using stratified random soil sampling method investigation was carried out at All India Co-ordinated Research Project on Micro and Secondary Nutrients and Pollutant Elements in Soils and Plant under Department of Soil Science, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola, Maharashtra to assess the chemical properties, major and micronutrients status in soils of Satara district in the year 2022-2023 of three hundred and thirty soil (330) samples at the depth of (0-20 cm) were collected across the Satara district of Maharashtra and analysed in the laboratory. The results revealed that pH, EC, CaCO3 and OC of soils collected across different tehsils of Satara district varied from 6.00 to 9.43,0.10 to 0.98 dS m-1, 1.50 to 29.25 % and 0.72 to 7.80 g kg-1. The DTPA -Zn, Fe, Cu and Mn in soil of Satara district ranged from 0.18 to 1.85 mg Kg-1, 1.89 to 12.50 mg Kg-1, 0.36 to 2.15 mg Kg-1 and 3.91 to 38.44 mg Kg-1 respectively. The CaCl2-B in soils of all the tehsils ranged from 0.18 to 1.69 mg Kg-1. The results obtained clearly showed a large variability in physio-chemical properties of soil across the Satara district with low nutrient indices were in nitrogen (1.12) and iron (1.51), medium for phosphorus (1.99), Sulphur (2.08) and zinc (1.88), high for potassium (2.92), copper (2.96), manganese (2.77) and boron (2.47).