一、密环菌的培养　栽培天麻首先培养优质的密环菌。1 .菌材 :凡属阔叶类树都能作菌材 ,以栎树类 (青冈栎 )、樱桃树为最好 ,以直径 5～ 8ｃｍ菌材较好。每年 2～ 3月份新发芽蕾时砍树 ,锯成 1ｍ长 ,暴晒 1 0～ 1 5ｄ。 4～ 5月可作发菌使用。 2 .方法 :无论室内外、平、坡地都 First, the cultivation and culture of the ring bacteria Gastrodia first cultivate high-quality ring bacteria. 1 mushroom material: All broad-leaved trees can be used as mushroom material, with oaks (Cyclobalanopsis glauca), cherry tree is best, with a diameter of 5 ~ 8cm better bacteria. Every year from February to March when the bud buds cut trees, sawing 1m long, exposure 10 ~ 15d. 4 May can be used for hair germs. 2 methods: both indoors and outdoors, flat, slopes are