PANDEY, MANOJ, et al. “Direct Effect of Boron and Zinc on Productivity, Quality and Nutrient Uptake by Indian Mustard (Brassica Juncea) and Their Residual Effect on Succeeding Pearl Millet (Pennisetum Glaucum) in Mustard-Pearl Millet Crop Sequence”. The Indian Journal of Agricultural Sciences, vol. 88, no. 10, Oct. 2018, pp. 1613-7, https://doi.org/10.56093/ijas.v88i10.84239.