Soil quality along the water course of selected distributary of D-7 shahapur branch canal of UKP Command area of Karnataka

Abstract

The study was conducted from November 2015 to May 2017 at Shahapur taluk, Yadgir district, to prioritization of degraded lands in D-7 distributary of Upper Krishna Project (UKP) command area, Karnataka. Over exploitation of soil by mankind without giving importance to health has resulted in degradation of soil. Soil quality speaks about its capacity in nourishing and providing proper anchorage to crops besides keeping the health of land, air, water and animals including man. Bulk density (BD), Particle density (PD) and Total porosity (TP) the soil samples were drawn from three different depths at 0-15, 15-30 and 30-45 cm, during in the year 2016 and 2017, the maximum and minimum value of Bulk density (1.79-1.45) and Particle density (2.70-2.65) and Total porosity (46.1-33) are shown in Table 2.The soil salinity (EC), soil reaction (pH) and ESP of soil samples were analysed during post-monsoon 2015 and 2016 and pre-monsoon of 2016 and 2017, at the head, middle and tail reach of D-7 command. The maximum and minimum value of EC during post-monsoon 2015 and 2016, (7.95-5.37 dSm-1 and 8.17-5.53 dSm-1) and pre-monsoon of 2016 and 2017, (8.36-5.01 dSm-1 and 8.44-5.24 dSm-1) are presented in Table 3. The analysis of soil reaction (pH) at the head, middle and tail reach of D-7 (L-1 to L-30). The maximum and minimum value of post-monsoon 2015 and 2016, (8.34-7.16 and 8.39-7.26) and pre-monsoon of 2016 and 2017, (8.32-7.19 and 8.57-7.41) are presented in Table 4. The analysis of exchangeable sodium percentage (ESP) at the head, middle and tail reach of D-7 (L-1 to L-30). The maximum and minimum ESP value of post-monsoon 2015 and 2016, (15.76-13.40 meq/100 g and 16.35-13.70 meq/100 g) and pre-monsoon of 2016 and 2017, (15.88-13.27 meq/100 g and 16.55-13.62 meq/100 g) are presented in Table 5.