NEERAJA, G, K MALLA REDDY, M SURYANARAYANA REDDY, and V PRAVEEN RAO. 2014. “Influence of Irrigation and Nitrogen Levels on Bulb Yield, Nutrient Uptake and Nitrogen Use Efficiencies in Rabi Onion (Allium cepa)*”. The Indian Journal of Agricultural Sciences 71 (2). https://epubs.icar.org.in/index.php/IJAgS/article/view/39551.