“Synergistic effects of nano urea and PSB on oil quality, production and crop productivity of Monarda citriodora in Jammu region: Synergistic effects of nano urea and psb on Monarda citriodora” (2026) Indian Journal of Experimental Biology (IJEB), 64(06), pp. 572–578. doi:10.56042/ijeb.v64i06.27965.