K. K. Singh, A. S. Jat, and S. K. Sharma, “Improving productivity and profitability of rice ( Oryza sativa)-wheat (Triticum aestivum) cropping system through tillage and planting management”, Indian J Agri Sci, vol. 75, no. 7, Jul. 2005, Accessed: Oct. 27, 2025. [Online]. Available: https://epubs.icar.org.in/index.php/IJAgS/article/view/9081