T. KARAK, D. K. DAS, and D. MAITI, “Yield and zinc uptake in rice (Oryza sativa) as influenced by sources and times of zinc application”, Indian J Agri Sci, vol. 76, no. 6, Jan. 2011, Accessed: Oct. 27, 2025. [Online]. Available: https://epubs.icar.org.in/index.php/IJAgS/article/view/2954