SHIVRAN, P.L., AHLAWAT, I.P.S. and SHIVRAN, D.R. (2014) “Productivity, nutrient uptake and soil fertility as influenced by phosphorus and sulphur in pigeonpea (Cajanus cajan )-wheat (Triticum aestivum) cropping system *”, The Indian Journal of Agricultural Sciences, 71(12). Available at: https://epubs.icar.org.in/index.php/IJAgS/article/view/40513 (Accessed: 24 October 2025).