A field experiment was conducted during kharif, 2015 at college farm, college of agriculture, Rajendranagar, Hyderabad to study the influence of various sources of zinc on soil enzyme activity. The experiment was laid out in Randomized Block Design with 12 treatments and 3 replications. | Activity of soil urease, Phosphatase and dehydrogenase as influenced by various sources of zinc in rice (Oryza sativa L.)