P. Singh, V. Nepalia, and S. S. Tomar, “Effect of herbicides and fertilizer levels on soil dehydrogenase and urease activity under soybean (Glycine max) cultivation*”, Indian J Agri Sci, vol. 78, no. 7, Jul. 2008, Accessed: Jul. 24, 2026. [Online]. Available: https://epubs.icar.org.in/index.php/IJAgS/article/view/9836