目前生产平菇(凤尾菇)原种和栽培种的培养基以棉子壳为主效果最好,但在非棉区常因缺乏原料而使扩大制种受到限制。为了解决这个问题,我们利用多种代用料进行了反复试验,用杨树枝为代料做培养基制做菌种获得成功。方法是:采用当年或越年生直径1厘米以上鲜(旧)杨树枝,从中对破2块或两破 The current production of Pleurotus ostreatus (Agaricus) species and cultivars of the medium to the best effect of cottonseed shell, but often in the non-cotton area due to lack of raw materials to expand the restricted species. In order to solve this problem, we use a variety of alternative materials were tested repeatedly, using poplar branches as a medium to do the culture medium to succeed. The method is: the current year or annuals more than 1 cm in diameter fresh (old) poplar branches, from broken two or two broken