Vol. 9, Special Issue 9, Part R (2025)

The present investigation was conducted to evaluate the soil fertility status of Research farm of College of Agriculture and Research Station, Kanpa, Mahasamund, Chhattisgarh. Total 77 soil surface samples (0-15cm) were taken from each plot and analyzed soil pH, EC, OC, available macronutrient N, P, K and S. Soil fertility map was prepared by using GPS, Arc GIS 10.3 Software used with kriging technique. The available nutrients were categorized into different fertility class and the fertility status of the research area were reported on basis of nutrient index value. The findings demonstrated that the pH of the soil varied from 5.62 to 7.36, that the soil reaction revealed the soils to be slightly acidic. EC with a range of 0.04 to 0.22 and a mean of 0.09 for soil water suspensions, the study area's soils were found to be acceptable for all types of crops. With a mean value of 0.50 g/kg, the OC ranged from 0.32 to 0.67, indicating that 53 percent of soils have a low to medium category of organic carbon. The available N content of the majority of the soil samples was found to be low; it ranged from 125 to 238, with a mean of 173 kg/ha. The available phosphorus ranged from 4.02 to 11.9 which is found low, the available potassium ranged from 214 to 359, which is in medium category. The available Sulphur varied from 22.2 to 44.78 with mean 31.67 kg/ha which is in medium category. NIV categorized the research area's soils into low fertility classes for nitrogen, phosphorus; medium fertility classes for sulphur, potassium. All soil comes under low category for available Nitrogen (100%), low in available phosphorus (100%) and medium in K (95%). Hence 25% of additional dose of nitrogen and phosphatic fertilizer and RDF for K is recommended along with recommended dose of fertilizer for major crops in that area.