Vol. 11, Special Issue 9 (2022)

Author(s):
US Mutkule, VG Takankhar, DM Kadam, PR Salunke, BS More and MS Shelke

Abstract:
Quality parameters of irrigation water from Renapur Tahsil of Latur district were studied during the year 2021. Total 100 irrigation water samples were collected from 20 villages of Renapur Tahsil. The water samples were analyzed for its quality parameters viz., pH, EC, TDS, TH, cations and anions. The results obtained from investigation revealed that all irrigation water samples from Renapur Tahsil were slightly alkaline in nature with pH of 7.66. The average EC of these irrigation waters was 0.70 dSm-1. Among 100 irrigation water samples 70 and 29 per cent water samples were categorized as C₂ (medium salinity) and C₃ (high salinity) classes, respectively. The TDS of irrigation water samples were varied from 243.20 to 966.41 mgL^-1 with an average value of 451.46 mgL^-1 and the average hardness (TH) of irrigation water was 263.6 mgL^-1. Among all the cations sodium (Na+) was dominant in water with an average value of 7.3 meL^-1 and in higher concentration as compared to other cations. The relative proportion of cations in irrigation water were Na⁺ > Mg⁺²> Ca⁺²>K⁺. The concentration of anions indicated that sulphate was dominant in irrigation water followed by Cl^- >HCO₃⁻ > CO₃^2-.. The correlation study pH and EC showed positive and significant correlation with all the cations and anions present in the water.