Nurindriana, F.M., Lutfi , M.W., Hanuf, A.A., Soemarno, S. and Prijono, S. 2026. Effects of ZnO-Based Smart Urea Coating on Ammonium Release and Characterization of Soil Ureolytic Bacteria in Loamy Soil. Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering). 15, 1 (Feb. 2026), 322–334. DOI:https://doi.org/10.23960/jtepl.v15i1.322-334.