Ogbemudia, I. and Ogboghodo, I.A. 2020. Soil chemical properties and heterotrophic bacterial population in the rhizosphere of oil palm plantations under different ages. ADAN JOURNAL OF AGRICULTURE. 1, 1 (Jul. 2020), 74–81. DOI:https://doi.org/10.36108/adanja/0202.10.0180.