发展木段栽培黑木耳生产,是山区农民主要副业之一,搞好木耳材砍伐,是提高木耳产量和质量的关键环节。砍伐时间:耳材砍伐季节不同,耳材质量有所差别,含水量也不一样。在树木“冬眠”期间砍伐最好。林区夜间气温在-10℃以下时期,均可砍伐耳材。长白山区从“小雪”至“春分”期间适宜砍伐,这个时期砍伐耳材有五个优点。一是树木含水量低,一般在60％以下;二是树汁停止流动,树皮 The development of cultivation of black fungus wood section production is one of the main sideline farmers in mountainous areas, improve the fungus timber felling, is to improve the yield and quality of fungus key link. Felling time: ear cutting season is different, the quality of different ears, water content is not the same. Felling is best during the trees “hibernation.” Forests at night temperatures below -10 ℃, can cut the ears. Changbai Mountain is suitable for cutting from “light snow” to “vernal equinox”. There are five advantages of cutting earlobes during this period. First, trees have low water content, generally below 60%; second, stop the flow of sap bark