5. Conclusion

In conclusion, the cultivation ofM. azedarach could reduce soil salinity and promote soil nutrient cycling. M. azedarachalleviated salt stress by up-regulating the expression of metabolites such as sugars, amino acids and flavonoids. There was a synergistic effect between alkaline phosphatase and traumatic acid in improving the salt tolerance of M. azedarach . This research provided a solid basis for clarifying the adaptation and amelioration mechanism ofM. azedarach to salt stress on saline-alkali land.