大规模生产平菇三级种,一般采用土蒸锅常压灭菌法,并需拌入多菌灵。即是如此,发菌过程中由于聚丙烯袋的微孔破损仍会造成污染。这是我们地区农村近几年普遍出现并亟待解决的问题。为此,笔者对原有制种操作规程进行了改进,试验结果污染率由15.6%降低到2.2%。现将其操作规程简介如下: Large-scale production of three kinds of mushrooms, commonly used soil steam cooker sterilization, and need to be mixed with carbendazim. That is to say, due to microbial damage caused by the porous polypropylene bags will cause pollution. This is a problem that has generally emerged in the rural areas of our region in recent years and is in urgent need of solution. To this end, the author made improvements to the original seed production rules, the test results pollution rate reduced from 15.6% to 2.2%. Now the rules of operation are as follows: