Abstract: In the present study， the seedling-nursery effects of 3 seedling raising matrixes were evaluated through gray analysis method， along with their fertility characteristics and potential environmental ecological risk being assessed. The results showed that the nutrients contents of 3 seedling raising matrixes were within 26.63-32.77 g·kg-1. Among 3 tested matrixes， Zhongxiang matrix exhibited a balanced nutritional composition and suitable pH range for disc seedling-nursery. The seedling raising effects decreased as Zhongxiang matrix > Xinghua matrix > Wuhan matrix. When nutritional soil was used as seed-cover soil and different ratios of matrixes were used as subsoil， the seedling raising effects decreased as 100% matrix > 40% matrix+60% natural soil > 30% matrix+70% natural soil > 50% matrix+50% natural soil. When matrix was used as seed\|cover soil and different ratios of matrixes were used as subsoil， the seedling raising effects decreased as 100% matrix > 40% matrix+60% natural soil > 50% matrix+50% natural soil > 30% matrix+70% natural soil. The potential ecological risk index was in middle to strong ecological risk level， and Hg and Cd were the main pollution factors. Considering cost and seedling\|raising effect， 40% matrix+60% natural soil was recommended for agricultural production. Meanwhile， raw material should be carefully selected for matrix production， in order to reduce or avoid heavy metal pollution.

Key words: seedling raising matrix, fertility, environmental ecological risk evaluation, seedling quality