S. K. Nathan, B. Singh, and T. C. Thakur, “Laboratory studies on performance of positive feed metering devices for band placement of fertilizers”, JAE, vol. 37, no. 2, Jun. 2000, Accessed: Jun. 06, 2026. [Online]. Available: https://epubs.icar.org.in/index.php/JAE/article/view/14075