R. A. SlNGH. “ Nitrogen, Sulphur and Calcium Relationship in Sustainable Production of Indian Mustard (Brassica Juncea) on Denuded Land”. Indian Journal of Agronomy 44, no. 4 (October 10, 2001): 44_4 . Accessed June 25, 2026. https://pub.isa-india.in/index.php/ija/article/view/3593.