Savitha, B.K., P. Paramaguru, and L. Pugalendhi. “Effect of Drip Fertigation on Growth and Yield of Onion”. Indian Journal of Horticulture 67, no. Special Issue (November 25, 2010): 334–336. Accessed May 2, 2025. https://journal.iahs.org.in/index.php/ijh/article/view/2188.