CHIWETALU, U., Ogbuagu, N.J. and Okechukwu, M.E. (2021) “SOIL ALKALINITY CONTROL USING THREE DIFFERENT BIO-MATERIALS (WASTES) FOR SOIL SUSTAINABILITY AND PRODUCTIVITY”, FUDMA JOURNAL OF SCIENCES, 5(2), pp. 247–254. doi:10.33003/fjs-2021-0501-514.