From the environment protecting and resource recycling point of view,the feasibility of the agricultural organic castoff being used as growing media was discussed.2.The basic physical and chemical properties of 20 kinds of alternative media were determined in the experiment and 8 kinds of media formula that agree to the requirements of the ideal alternative soilless culture media were screened.Experiments show that these 8 kinds of formulas are able to form a good rhizosphere environment growth and developm...