SODAH, M. G., O. J. Jayeoba, S. M. Amana, and I. M. Jibrin. “EFFECT OF DIFFERENT RATES OF BIOCHAR ON NODULATION AND YEILD OF SOYBEAN (Glycine max.L.Merill)”. FUDMA JOURNAL OF SCIENCES, Vol. 6, no. 4, Aug. 2022, pp. 12 -16, doi:10.33003/fjs-2022-0604-1036.