87 m3 h). strawberry cultivation substrate disinfection effectiveness analysis: After the determination, which leads to high temperature and pressure steam temperature is maintained at 125 ℃ at 15 min and 30 min, respectively, the matrix of the sample test results shown in Table 1. seen from Table 1, disinfection and sterilization 30 min 15 min matrix sterilization steam sterilization machine rate at 99.9% more than as a production application concerned, 99.9% of the sterilization rate to be adequate matrix steam sterilization machine disinfection time can be controlled within 15 min, then steam sterilization machine production rate of 2.