Nitthaisong, P., Thupwong, K., Tonmukayakul, N., Utharapan, J., Chaisan, T., Rungmekarat, S., Tudsri, S. and Chotchutima, S. 2025. Optimum potassium fertilizer rate for growth, biomass yield, and fuel properties of Leucaena (Leucaena leucocephala) cv. Tarramba in sandy soil. International Journal of Agricultural Technology. 21, 3 (May 2025), 1059–1070. DOI:https://doi.org/10.63369/ijat.2025.21.3.1059-1070.