G. SINGH, O. P. SINGH, V. KUMAR, and T. KUMAR, “Effect of methods of establishment and tillage practices on productivity of rice (Oryza sativa) – wheat (Triticum aestivum) cropping system in lowlands*”, Indian J Agri Sci, vol. 78, no. 2, Jan. 2011, Accessed: Oct. 27, 2025. [Online]. Available: https://epubs.icar.org.in/index.php/IJAgS/article/view/2670