The experiment was laid out with nine treatments and three replications in Randomized Block Design. Maximum plant height, bulb size and weight was observed with the application of Urea 50% + Vermicompost 50% per plot. Whereas, the maximum bulb weight was recorded with application of Urea 50% + Vermicompost poultry manure 25% each per plot. Application of different organic manures on onion bulbs is useful for improving the growth and yield characteristics.