Assessment of nutrients status in Bt cotton growing areas of Jewargi Taluka, Kalaburagi district

Abstract

The study was conducted during 2017 to know the nutrients status of the Bt cotton growing fields of Jewargi taluka, Kalaburagi district. The experiment was conducted in 10 different villages. 100 surface soil samples were collected. The results revealed that soil pH ranging from 7.08 to 9.23 with EC 0.2 to 1.12 dS/m. Organic carbon values range from 1.0 to 1.14 g/kg soil. In majority of study area available nitrogen, was medium (67%), available phosphorus was medium (85%), available potssium was high (49%) and available sulphur was medium (70%). Soils of the study area were dominated by calcium and magnesium. Available Fe status was high and ranging from 2.46 mg kg-1 to 8.20 mg kg-1. Available Zn ranged from 0.28 and 0.71 mg kg-1. Available Cu ranged from 0.22 to 0.81 mg kg-1. Available Mn was in the range of 3.62 to 8.68 mg kg-1.