Characterization of ground irrigation water quality of Piparcity tehsil of Jodhpur district, Rajasthan

Abstract

In present study, ground irrigation water quality of Pipar City tehsil of Jodhpur district of Rajasthan was examined for irrigation purpose. Forty irrigation water samples were collected from different villages of Pipar City tehsil. The irrigation water samples were analysed for various chemical properties like EC, pH, major cations: Na+, Ca+2, Mg+2, K+ and anions: CO3-2, HCO3-, Cl- and SO4-2. The irrigation water was classified into three groups on the basis of salinity (EC), sodicity (SAR) and alkalinity (RSC). Besides this, the quality of irrigation water was also categorized on the basis of the EC, SAR and RSC into four classes viz. good, marginally saline, high SAR saline and high alkali water. The results showed that 10 per cent were good, 17.50 per cent were marginally saline, 60 per cent were high-SAR saline and 12.50 per cent water samples were highly alkali, and it was found that majority of irrigation water of the study area were not suitable for irrigation purposes of normal and sensitive crops.