Ikeh, A. O., Esang, D. M., Unaegbu, A. D., & Rahmat, A. (2025). Utilization of Organic Soil Amendments to Improve Soil Properties and Groundnut Productivity in an Ultisol of Southeastern Nigeria. Open Soil Science and Environment, 3(2), 83–92. https://doi.org/10.70110/osse.v3i2.60