食用菌同人们的生活密不可分，其食用价值和经济价值越来越被人们所重视。据有关资料表明，我国已是世界上食用菌生产大国和出口大国，产量已占世界总产量的51％。食用菌可改善食品结构，增强体质，而且每年还可为国家创汇4亿多美元。然而，目前我国的食用菌生产多数还停留在小 Edible mushrooms are inseparable from people’s lives, and their food value and economic value are more and more valued by people. According to the relevant information, China is already the world’s largest edible fungus producer and exporter, accounting for 51% of the world’s total output. Edible mushrooms can improve the food structure, enhance physical fitness, but also for the country each year more than 400 million U.S. dollars. However, at present, the majority of edible mushroom production in our country still stays small