Two field experiments were conducted at two sites in Sakha Agric. Res. Station Farm, North Delta, during two successive winter seasons, 2017/2018 and 2018/2019 to study the effect of individual and combined applications of gypsum, compost tea and biochar on some soil properties and wheat (Triticum aestivum, L) productivity under saline and saline-sodic soils. Gypsum requirements (G), 400 L compost tea (C), 1 Mg biochar (B 1) or 2 Mg biochar (B 2) were applied. Data revealed that application of G+ C+ B2 decreased soil ECe by 28.06 and 13.16 %, SAR by 17.23 and 8.92 %, ESP by 17.23 and 8.92 % for site 1 and site 2, respectively as compared to the control. While, the sodium removal efficiency (RSE %) with different treatments was increased in somewhat according to the following order: G+C+B 2 ˃ G+C+B 1 ˃ G+C ˃ G+B 2 > G+B 1 ˃ G ˃ C+B 2 > B 2 > C+B 1 > C > B 1 compared to that of the initial soil. Also, the application of different soil amendments decreased soil bulkdensity and increased soil porosity after the two growing seasons. The plant height, 1000-grain weight, grain yield and straw yields of wheat were significantly increased with different treatments.