S. KUNDU, K. K. BARMAN, M. SINGH, and P. N. TAKKAR, “Utilization of 15 N-labelled ammonium and nitrate-N by soybean (Glycine max) and wheat (Triticum aestivum) grown in Typic Haplustert”, Indian J Agri Sci, vol. 68, no. 11, Feb. 2013, Accessed: Oct. 28, 2025. [Online]. Available: https://epubs.icar.org.in/index.php/IJAgS/article/view/27774