Sethupathi, S, and M Paramasivan. 2019. “Effect of Zinc and Boron on Yield and Quality of Onion (Allium Cepa L.) in Alifisols of Tamirabarni Tract”. Journal of Agriculture and Ecology 7 (7): 96-102. https://saaer.org.in/journals/index.php/jae/article/view/207.