Abstract: In view of the problem of slope protection’s high cost which results from high cost of peat, The pot experiment on grass was carried out with the muck, the straw stalk, the cow dung, the waste of mushroom that replaced the peat coal to study the effects on grass growth and nutrient change of various materials . Through eight month-long the long-term experiment, the result indicated that several solid rejects' nutrient content can satisfy the plant growth of the long-term demand, and boost seeds coming up. 60 days later, the muck group was best and the mix material next, they were 8cm tall in average coverage rate above 95%, and comparison group coverage rate under30%. With the muck, the straw stalk, the cow dung, the waste of mushroom and so on to use as the peat coal, the result was that nutrient content stabilize in the high level finally, and those material may becomes the high quality material which substitute the peat coal.