Ike, K. A., Nwaigbo, L. C., Ukachukwu, S. N., Ukpabi, U. H., Obasi, C. P., Okiyi, P. C. and Odoemelam, V. U. (2020) “Effect of plant spacing and intercropping with two species on growth and yield of forage maize”, Nigerian Journal of Animal Production, 45(2), pp. 247–255. doi: 10.51791/njap.v45i2.502.