• Shivanna S
• Vyshnavi D R
• Pradeepa S
• Bhavya S

The present study highlights the impact of agricultural practices on groundwater quality. The study area lies between Long. 760 40’to 770 00’and lat. 120 25’ to 120 45’with an aerial extent of 720 km2. The area falls in Kaveri River basin and its tributaries. The interpretations are based on 28 water sample from both dug wells and bore wells. The area under study has an annual rainfall of 700 mm, but vigorous agricultural activities are mainly due to network of canals in the entire taluk connected to the major reservoirs. Hence the water availability is assured throughout the year for agricultural practices paving way for more drylands being brought under irrigation. Thus, the farmers started cultivating cash crops, sugarcane, groundnut, paddy etc. resulting in indiscriminate usage of bio-manure, chemical fertilizers and pesticides for higher crop yield. This has caused deterioration of groundwater quality, resulting in the anomalies for the constituents like Na, K, Cl, and SO4. These anomalies can be related to the excess usage of fertilizers, rather than lithology and soils of the taluk. To overcome this problem of groundwater quality further, the farmers must be educated about the judicious usage of input products such as fertilizers and pesticides.

Groundwater, Contamination, Anomaly, Fertilizer, Mandya

"GROUNDWATER CONTAMINATION DUE AGRICULTURAL PRACTICES IN MANDYA TALUK, KARNATAKA, INDIA", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.8, Issue 8, page no.f303-f305, August-2021, Available :http://www.jetir.org/papers/JETIR2108638.pdf

"GROUNDWATER CONTAMINATION DUE AGRICULTURAL PRACTICES IN MANDYA TALUK, KARNATAKA, INDIA", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.8, Issue 8, page no. ppf303-f305, August-2021, Available at : http://www.jetir.org/papers/JETIR2108638.pdf