B. S. Brar, N. S. Dhillon, and M. Chand, “Effect of farmyard manure application on grain yield and uptake and availability of nutrients in rice (Oryza sativa)-wheat (Triticum aestivum) rotation”, Indian J Agri Sci, vol. 65, no. 5, May 2012, Accessed: Oct. 29, 2025. [Online]. Available: https://epubs.icar.org.in/index.php/IJAgS/article/view/18309