R. K. SINGH, U. SINGH, and R. MEENA, “Productivity, compatibility and economics of wheat (Triticum aestivum) and Indian mustard (Brassica juncea) intercropping as influenced by farmyard manure and fertilizer levels under irrigated conditions”, Indian J Agri Sci, vol. 88, no. 4, pp. 530–539, Apr. 2018, doi: 10.56093/ijas.v88i4.79098.