(一) 选择树种:适宜栽香菇的树有220余种,大多为壳斗科、桦木科、金缕梅科。大凡不含灭菌性物质,而材质较坚实,树皮不易脱落.不过薄,即使是空心、烂心,或树梢、树根,只要树皮较完整皆可用。尤以6～15厘米的小径木、烂心材,出菇快,产量高。因为空心、烂心材,空隙多,通气性好,菌丝长得快,菇也出得快。我县利用枫树、红栲、白栲、麻栎、茅粟、泽栗(槲树)、米楮、甜楮、杜英等最普遍,我场79年冬用废材5.5 (A) choose the species: Suitable for planting mushrooms have more than 220 kinds of trees, mostly Fagaceae, Birch Branch, Hamamelis Branch. Generally does not contain sterilizing substances, and the material is solid, the bark is not easy to fall off, but thin, even hollow, rotten, or treetops, roots, as long as the bark is more available. Especially 6 to 15 cm in diameter wood, bad heartwood, fruiting quick, high yield. Because of hollow, bad heartwood, voids, good ventilation, mycelium grow faster, mushrooms also out faster. My county use maple, red clump, white clump, Quercus, Maosu, Ze Li (oak), rice crackers, sweet potatoes, Du Ying, the most common, my field 79 years of winter with waste 5.5