Based on results, it is concluded that the minimum enzyme inhibition activity was observed from day 1 st to 12 th with A2 combination of inhibitors for all three districts with 0.50% inhibitor concentration followed by 0.25 and 0.10%. From the 17 th -day urease activity in inhibitortreated samples was gradually increase as compared to control till the 37 th days. It was also observed that the combination of nitrification and urease inhibitor (A2) showed better results regarding the reduction of N loss in the form of ammonia as well as the emission of NO2. The highly significant (p<0.05) results were recorded from 1-30 th days when 0.50% inhibitor dose was applied.