Urea is used as fertilizer, hydrolyzed enzymatically by soil urease and the resulting release of ammonia and rise in pH. This urease activity has a deep relationship with the cropping pattern. Urease activity has negatively correlated with EC and total N and positively correlated with organic C, pH, Microbial C and N. Soil respiration showed inverse relation with soil moisture, % clay and microbial biomass C and positive correlation with soil pH and organic C. In this study showed that the cropping pattern significantly affected urease activity. The highest activity for the enzyme assayed was...