Groundwater Quality Assessment for Anantapur District of Andhra Pradesh for Irrigation Purpose

P. Venkata Subbaiah, Y. Radha Krishna, M.J. Kaledhonkar
2022 Indian Journal of Agricultural Research  
Assessment and mapping of quality of irrigated groundwater may help the farmers in selection of suitable crops and other agronomic management practices for getting profitable yields without affecting the soil health. The spatial maps of different parameters, prepared using GIS could be valuable for policy makers. Methods: A survey was undertaken during the year 2021 to assess the quality of groundwater for irrigation in various mandals of Anantapur district, Andhra Pradesh. A total of 492
more » ... s were collected and GPS locations of sampling points were recorded. The water samples were analyzed for various chemical properties viz., pH, EC, Ca+2, Mg+2, Na+ and K+; CO3-2, HCO3-, Cl- and SO4-2. Result: The pH, EC, SAR and RSC in groundwater ranged from 6.7-8.4, 0.4-10.7 (dSm-1), 0.43-36.4 (mmol l-1)1/2, -66.8-15.4 (me l-1). The concentration of cations viz., Ca+2, Mg+2, Na+ and K+ varied from 0.8-28.4, 0-43.2, 0.73-70.1 and 0.001-51.76 me l-1 with mean values of 4.23, 3.86, 5.29 and 0.22 me l-1 respectively. Concentration of anions viz., CO3-2, HCO3-, Cl- and SO4-2 varied from 0-1.8, 0.88-15.4, 0.4-59.6 and 0.21-17.08 me l-1 with an average values of 0.22, 6.42, 5.33 and 2.29 me l-1 respectively.
doi:10.18805/ijare.a-5965 fatcat:rxmssiajdncxvffrq3uoouumty