我国是世界上食用菌生产第一大国。据科技部不完全统计,2004年食用菌总产量约为900万t,占世界总量的65%以上;2003年出口到119个国家,出口量达43.32万t,出口额6.2亿美元。在食用菌生产中,由于其培养基质营养丰富、空间相对密封、潮湿,易导致病菌污染,使食用菌品质下降、产量降低 China is the largest edible fungus producing country in the world. According to the incomplete statistics of the Ministry of Science and Technology, the total output of edible fungi in 2004 was about 9 million tons, accounting for more than 65% of the world total. In 2003, it was exported to 119 countries and the export volume reached 432,300 tons with the export value of 620 million U.S. dollars. In the production of edible mushrooms, due to its nutrient-rich culture medium, relatively sealed space, wet, easy to cause bacteria contamination, so that edible fungus quality decline, reduce production