目前，随着农业产业结构的调整，宁晋县草菇栽培规模不断扩大，而草菇栽培一般采用生料栽培或二次发酵栽培，栽培的全过程均处在高温、高湿环境中，杂菌污染严重、为害大，直接影响草菇的产量及质量。因此，能否有效地防止杂菌污染，是草菇栽培成功与否的关键。１杂菌的种类及 At present, with the adjustment of agricultural structure, the scale of mushroom cultivation in Ningjin County is constantly expanding. However, straw mushroom cultivation generally adopts raw material cultivation or secondary fermentation cultivation. The whole cultivation process is in high temperature and high humidity environment, Germ pollution is serious, harmful, a direct impact on straw yield and quality. Therefore, the ability to effectively prevent bacterial contamination is the key to the success of straw mushroom cultivation. A variety of bacteria and