BABU, S. (2013) “Effect of sunflower stover and nutrients management on productivity, nutrient economy and phosphorus use efficiencies of pigeonpea (Cajanus cajan)-sunflower (Helianthus annuus) cropping system”, The Indian Journal of Agricultural Sciences, 83(2). Available at: https://epubs.icar.org.in/index.php/IJAgS/article/view/27993 (Accessed: 26 October 2025).