Nath, TriyugiKumar, Ashish2020-02-012020-02-012019Sodium adsorption ratiohttp://krishikosh.egranth.ac.in/handle/1/5810142293Water is a unique resource on the planet earth. It is very essential for sustaining all forms of life. Groundwater is defined as water that is present beneath the water table under earth’s exterior. Water in the ground passes through soil and rock pores, through fractures and weathered areas of the bedrock. Groundwater account for about 98% of the world's use of fresh water and is estimated 60 times as plentiful as fresh water found on lakes and streams and has a major effects on the habitats of rivers and wetland for crops, animals and aquatic life. As the groundwater is not visible that’s why it is often ignored in the consideration of all the waters on earth, yet groundwater is a valuable resource available and it should be use judicially. Water is also seen as a universal solvent to dissolve multiple things that are essential for the ecosystem's survival in turn, water is most important in many geological processes and can also be used for different use from the rainfall. The groundwater quality of south west Punjab and stated that pH, EC, TDS and cationic parameter i.e. Na, K, Ca and Mg and anionic parametersi.e.carbonate, bicarbonate and chloride and irrigation water quality parameters i.e.SAR, RSC, PI, KR, SSP and IWQI in the different seasons are fluctuating and pre, during and post monsoon periods was varied. Groundwater pH is varied significantly between different monsoon seasons. The pH values was ranged between 8.2 to 9.0, 8.0 to 8.90 and 7.9 to 8.8. Groundwater EC of varied significantly between different monsoon seasons. The EC values was ranged between 0.45 to 0.78 dS m-1, 0.44 to 0.77dS m-1 and 0.44 to 0.76 dS m-1.Groundwater TDS of the Jalalabad west block varied significantly between different monsoon seasons. The TDS values was ranged between 518 to 3320 meq L-1, 460 to 3150 meq L-1 and 350 to 2980 meq L-1 . Groundwater Na of the Jalalabad west block varied significantly between different monsoon seasons. The Na values was ranged between 0.52 to 25 meq L-1, 0.47 to 22.8 meq L-1 and 0.43 to 20.65 meq L-1 . : Groundwater K of the Jalalabad west block varied values was ranged between 0.31 to 0.92 meq L-1, 0.42 to 0.81 meq L-1 and 0.26 to 0.66 meq L-1 . Groundwater Ca of the Jalalabad west block varied values was ranged between 0.40 to 2.05 meq L-1, 0.3 to 1.7 meq L-1 and0.25 to 1.55 meq L-1 . Groundwater Mg of the Jalalabad west block varied values was ranged between 0.4 to 2.5 meq L-1, 0.35 to 2.20 meq L-1 and 0.30 to 2.05 meq L-1 . Groundwater Ca + Mg of the varied values was ranged between 0.45 to 3.40 meq L-1, 0.71 to 3.75 meq L-1 and 0.60 to 3.40 meq L-1 . Groundwater carbonate of varied values was ranged between 1.2 to 5.6 meq L-1, 1.1 to 3.80 meq L-1 and 1.20 to 4 meq L-1 .Groundwater bicarbonate of varied values was ranged between 5.60 to 16 meq L-1, 4.80 to 15.4 meq L-1 and 4 to 14.80 meq L-1 . Groundwater chloride of the Jalalabad west block varied values was ranged between 2.4 to 46 meq L-1, 2.25 to 25.40 meq L-1 and 1.60 to 19.20 meq L-1. Groundwater SAR of the Jalalabad west block varied values was ranged between 1.10 to 21.5, 0.79 to 20.6 and 0.79 to 20.65. Groundwater RSC of the Jalalabad west block varied values was ranged between 4.95 to 15.8 meq L-1, 5.19 to 12.28 meq L-1 and 4.20 to 14.40 meq L-1 .Groundwater PI of the Jalalabad west block varied values was ranged between 95.9 to 297.2, 91.7 to 225.5 and 93.40 to 235.29. Groundwater IWQI of the Jalalabad west block varied values was ranged between 175.67 to 359.52, 161.54 to 271.97. On the basis of results summarized above, in this study, it was found that the groundwater of the Jalalabad west block of the district Fazilka, Punjab comes under very deprived or not suitable for irrigation purposeennullThesis