KUMAR, S., VERMA, S. K., SINGH, T. K., & SINGH, S. (2011). Effect of nitrogen and sulphur on growth, yield and nutrient uptake by Indian mustard (Brassica juncea) under rainfed condition*. The Indian Journal of Agricultural Sciences, 79(2). https://epubs.icar.org.in/index.php/IJAgS/article/view/2470