Sampson, H. U., Ikeh, A. O., Orji, J. O., Uko, U. I., Okparaiheoma, D. A., Akuwueze, C. G., Anonaba, N. K. and Okamigbo, J. N. (2025) “Effects of Soil Amendment on Productivity of Okra (Abelmoschus esculentus (L) Moench) in an Ultisol of Southeastern Nigeria”, Open Soil Science and Environment, 3(1), pp. 12–19. doi: 10.70110/osse.v3i1.33.