D. K. KUNDU and R. SINGH, “Mineral nitrogen forms and availability in major soil groups of Orissa as influenced by water regime”, Indian J Agri Sci, vol. 71, no. 6, Apr. 2014, Accessed: Jul. 24, 2026. [Online]. Available: https://epubs.icar.org.in/index.php/IJAgS/article/view/39886