我国黑木耳生产,长期以来采用段木栽培,单产低,耗材大,每100kg木材只能生产1.5kg,经济效益不高。近年来改为木屑或棉籽壳、稻草、玉米芯、甘蔗渣等代料栽培法。从接种到出菇只要45～55天,生产周期100～120天,比原来缩短一半多,由一年种一季,变为春秋两季。每100kg代料可收成干木耳6～9kg,单产提高4～5倍。黑木耳速生高产栽培技术如下: China black fungus production, long-term use of segment wood cultivation, low yields, supplies large, only produce 1.5kg per 100kg wood, economic efficiency is not high. In recent years, it has been replaced by sawdust or cotton seed hulls, rice straw, corn cob and bagasse cultivation methods. From inoculation to fruiting as long as 45 to 55 days, the production cycle of 100 to 120 days, shortened more than half of the original, from a year of a season, into spring and autumn. Yield per 100kg can be dried dry fungus 6 ~ 9kg, yield increased 4 to 5 times. Black fungus fast growing high-yielding cultivation techniques are as follows: