Senanayake, N. , Perera, M. and Weragoda, A. 2022. Amelioration of acid sulphate soils in Nilwala river basin : Amelioration of acid sulphate soils. SAARC Journal of Agriculture. 20, 2 (Dec. 2022), 211–221. DOI:https://doi.org/10.3329/sja.v20i2.63582.