A laboratory-scale study was conducted to investigate the effect of rhamnolipids (RLs) supplement on amelioration saline-alkali soils. The RLs improved soil aggregates stability and promoted formation macro-aggregates which increased by up 10.84% 15.92% in alkaline saline soil, respectively. In addition, amendment led a pH reduction from initial 8.87 7.80–7.84 salt rejection 20.72% remarkably a...