Five kinds of culture medium ρ(IM)=3.15,6.30,9.45,12.60,15.75 g·L-1were prepared by adding IM to the nutrient solution with liquid culture method to determine the effects of novel calcium mag-nesium silicon composite inorganic material(IM)on the growth of wheat seedlings under salt(NaCl)stress,and the effects of different amounts of IM on the growth and physiological characteristics of wheat seedlings un-der salt stress were studied.The results showed that salt stress significantly inhibited the growth of wheat seed-lings,and adding IM could effectively alleviate the salt stress effect on wheat seedlings.Treatment with p(IM)=12.60 g·L-1 could significantly promote the growth of wheat seedlings,decrease the malondialde-hyde(MDA)mass concentration and the superoxide anion(02)production rate,increase the soluble protein mass fraction and antioxidant enzyme activity of leaves and roots,and significantly improve the free proline mass fraction.
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