S. C. Panday, “Effect of tillage and irrigation on yield, profitability, water productivity and soil health in rice (Oryza sativa) -wheat (Triticum aestivum) cropping system in north-west Himalayas”, Indian J Agri Sci, vol. 78, no. 12, Dec. 2008, Accessed: Oct. 27, 2025. [Online]. Available: https://epubs.icar.org.in/index.php/IJAgS/article/view/9970