Jamir, A.R., Chattopadhyay, N. and Ch. Momin, M. 2021. Effect of biofertilizers with various levels of inorganic nutrients on growth and yield of black cumin (Nigella sativa L.) var. Azad Kalonji. Environment Conservation Journal. 22, 1&2 (Jun. 2021), 73–78. DOI:https://doi.org/10.36953/ECJ.2021.221212.