T. MAL, S. S. WALIA, and K. S. SAINI, “Productivity and economics of different cropping systems in relation to tillage, mulching and fertilizer management practices in north-western Indo-Gangetic Plains of India”, Indian J Agri Sci, vol. 88, no. 2, pp. 216–221, Apr. 2018, doi: 10.56093/ijas.v88i2.79171.