OM, H.; SINGH, S. P.; SINGH, J. K.; SINGH, R. N.; ANSARI, M. A.; MEENA, R. L.; YADAV, B. Productivity, Nitrogen Balance and Economics of Winter Maize (Zea Mays) As Influenced by QPM Cultivars and Nitrogen Levels. Indian J Agri Sci 2014, 84 (2), 306–8. https://doi.org/10.56093/ijas.v84i2.38057.