P. RAMESH, M. SINGH, N. R. PANWAR, A. B. SINGH, and S. RAMANA, “Response of Pigeonpea (Cajanus cajan) varieties to organic manures and their influence on fertility and enzyme activity of soil*”, Indian J Agri Sci, vol. 76, no. 4, Jan. 2011, Accessed: Oct. 27, 2025. [Online]. Available: https://epubs.icar.org.in/index.php/IJAgS/article/view/2744