Zakka, T., Hassan, M.R., Tanko, .R.J., Munza, B.M. and Sadiq, A.A. 2021. Effect of variety and plant spacing on yield components of two sorghum varieties (Sorghum bicolor l. Moench). Nigerian Journal of Animal Production. 48, 1 (Mar. 2021), 175–184. DOI:https://doi.org/10.51791/njap.v48i1.2883.