S. BAJAPAI and S. V. S. CHAUHAN, “Effect of zinc, boron and manganese on yield in okra (Abelmoschus esculentus)*”, Indian J Agri Sci, vol. 71, no. 5, Apr. 2014, Accessed: Oct. 27, 2025. [Online]. Available: https://epubs.icar.org.in/index.php/IJAgS/article/view/39806