Amonpon, W., Pakdeethai, C., Sansanee, S., Boontung, R. and Rakkayan, N. 2026. Response to Nitrogen and Potash Fertilizer of Advanced Cassava Varieties for High Yield in Loamy Sand, Huai Pong Soil Series. Thai Agricultural Research Journal. 44, 2 (Aug. 2026), 154–166. DOI:https://doi.org/10.14456/thaidoa-agres.2026.13.