QUALITY OF IRRIGATION WATER FROM CHAKUR TEHSIL OF LATUR DISTRICT, MAHARASHTRA
Journal Title: International Journal of Agriculture Sciences - Year 2016, Vol 8, Issue 49
Abstract
Quality of irrigation water from Chakur tahsil of Latur district, Maharashtra, India during year 2008-2009. Total 300 ground water samples (180 well and 120 bore well) were collected randomly from 30 villages of periodically in two seasons i.e. monsoon season (July, 2008) and winter season (January, 2009). Similarly, representative 300 soil samples were also collected from same villages of Chakur tahsil in monsoon and winter season. The ground water samples were analyzed for quality parameters viz., pH, Electrical conductivity, cations, anions, boron. The Sodium Adsorption Ratio and Residual Sodium Carbonate were also calculated for these ground water samples. Soil samples were also analyzed for its pH and EC. The result found that all ground water samples from Chakur tahsil were alkaline in reaction and having pH 7.87 and 8.02 in monsoon and winter seasons, respectively. EC of these waters were 0.72 and 0.91 dS m-1 in monsoon and winter seasons, respectively. Among 300 water samples as per boron concentration, 54 and 40 per cent water samples were categorized in class C3 and C2, respectively. The EC values of ground waters were low in monsoon season as compared to winter season. Among all the cations in ground water sodium was dominant followed by magnesium, calcium and potassium. The relative proportions of anions in ground waters were in sequence of sulphate, carbonate, bicarbonate and chlorine. The boron concentration of ground water was ranged from 0.77 to 1.17 ppm which was moderately safe (C2) for irrigation. According to sodicity classes, i.e. SAR and RSC of ground waters were 90 and 82 per cent, respectively, which were safe and suitable for irrigation. Due to irrigation with ground water the pH and EC of soils were changed from 7.93 to 8.05 and 0.73 to 0.84 dSm-1, respectively. The positive and significant correlation was observed in between soil pH, Electrical conductivity and water quality parameters studied.
Authors and Affiliations
S. K. GHODKE
Keywords
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