黑木耳是一种营养丰富的食用菌,是我国人民喜爱的副食品,也是传统的出口商品,它寄生在腐配的阔叶树杆表皮上,通过酶的作用,摄取段木中的纤维素,半纤维素、糖、磷、钙、铁等营养物质,菌丝发育和子实体形成的周期循环构成了黑木耳繁衍不绝的生活史。在整个生长过程中所需的外界条件主要是养料、水份、空气、温度、光照、酸碱度等。 Black fungus is a nutrient-rich edible fungus, is our favorite non-staple food, is also a traditional export commodities, it is parasitic on the deciduous broad-leaved tree stems epidermis, through the role of enzymes, uptake of wood cellulose, hemicellulose , Sugar, phosphorus, calcium, iron and other nutrients, mycelium development and the formation of fruiting bodies formed a cycle of black fungus multiply life cycle. The external conditions required in the growth process are mainly nourishment, moisture, air, temperature, light, pH and so on.