S. N. SHARMA, “Effect of residue management practices and nitrogen rates on chemical properties of soil in a rice (Oryza sativa)-wheat (Triticum aestivum) cropping system*”, Indian J Agri Sci, vol. 71, no. 4, Apr. 2014, Accessed: Oct. 23, 2025. [Online]. Available: https://epubs.icar.org.in/index.php/IJAgS/article/view/39746