长期以来我国食用菌生产的培养基均以木屑和棉籽壳为主,木材的过度砍伐,造成林木资源匮乏;而棉籽壳又因其用途广泛、用量大,价格居高不下。因此,用于栽培食用菌的原材料价格大幅度上升,成本提高。这样,经营不善者,往往出现效益差,甚至出现亏本的情况。针对这 For a long time, the culture medium for the production of edible fungi in our country is dominated by sawdust and cotton seed hulls. Excessive felling of timber has resulted in the lack of forest resources. Because of its wide range of uses, cottonseed hulls have large quantities and high prices. Therefore, the price of raw materials for cultivation of edible mushrooms has risen sharply and costs have increased. In this way, those who do not manage well often have poor returns or even losses. Against this