自1991年北方地区棉花大面积减产,以棉籽壳为主要原料的北方地区平菇栽培受到限制,部分菇农把平菇种植转移到以麦秸、稻草等生产草菇上来,但是由于缺乏经验,生产没有达到预期目的,产量低、菇质差。为此,我们1992年着手该项目的研究工作,通过二年的努力,取得了北方地区草菇高产优质栽培的成功试验,主要技术要点下: Since 1991, large-scale cotton production cuts in the northern region, cottonseed shell as the main raw material in the northern part of the cultivation of flat mushrooms is limited, part of the mushroom growers transferred to the mushroom production of straw, straw and other straw up, but due to lack of experience, production Did not achieve the desired purpose, low yield, poor quality mushrooms. To this end, we started the research work of the project in 1992. Through two years of hard work, we have succeeded in the successful cultivation of high yield and quality straw mushrooms in northern China. The main technical points are as follows: