MEHLA, D.S. and GUPTA, A.P. (2013) “Optimum fertilizer nitrogen dose for wheat (Triticum aestivum) varieties under rice (Oryza sativa)-wheat cropping sequence”, The Indian Journal of Agricultural Sciences, 68(6). Available at: https://epubs.icar.org.in/index.php/IJAgS/article/view/27565 (Accessed: 28 October 2025).