Xu, Y. , Guo, Z. , Li, J. , Zhang, H., Lu, Y. , Shi, C. and Cao, T. 2021. Effects of perlite, grass charcoal and vermiculite on root growth of isatis (Isatis tinctoria L. Woad) and soil nutrient migration. Bangladesh Journal of Botany. 50, 5 (Nov. 2021), 947–954. DOI:https://doi.org/10.3329/bjb.v50i5.56449.