MANDAL, J. et al. 2019. Estimation of suitable extractant and critical level of B in cauliflower (Brassica oleracea var. botrytis, cv. Sabour Agrim) for the soils of Indo-Gangetic plain of Bihar, India. The Indian Journal of Agricultural Sciences. 89, 4 (Apr. 2019), 701–707. DOI:https://doi.org/10.56093/ijas.v89i4.88870.