Tran, T.D., Tran, N.P.T., Le, D.A., Nguyen, T.-N., Phan, K.A. and Nguyen, H.H. 2026. A retrieval-augmented large language model for agricultural advisory on crop varieties and cultivation techniques. CTU Journal of Innovation and Sustainable Development. 18, 2 (Jul. 2026), 169-184. DOI:https://doi.org/10.22144/ctujoisd.2026.033.