[1] S. U. Onwudike, F. A. Osisi, U. Onyegbule, E. D. Chukwu, and E. Olisa, “Fertility Levels of Soils under Selected Tree Vegetations for Efficient Agro-Forestry in Imo State, Nigeria,” IJHAF, vol. 6, no. 3, pp. 33–41, 2022, doi: 10.22161/ijhaf.6.3.5.