Ali, A., M. Usman, and S. O. Ojeniyi. “Performance of Maize As Influenced by Tillage and Fertilizer Treatments in Makurdi, Southern Guinea Savanna, Nigeria”. Asian Plant Research Journal, Vol. 4, no. 1, May 2020, pp. 14-25, doi:10.9734/aprj/2020/v4i130076.