香菇木屑菌种,其木屑粗细直接关系到培养基的物理结构,影响菌丝生长和菌种质量。笔者在实践中摸索出了木屑粗细的合理比例,获得了优质香菇菌种。 1 具体方法 ①按常规要求准备不同粗细的木屑,粗木屑为3mm左右,细木屑为带锯或圆盘锯木屑。②按比例确定粗细木屑的用量,以常规木屑培养基为例,其中粗木屑占木屑重量的65％～75％,细木屑占25％～35％,木屑偏细时,可加入25％的用粗刨花过3.5～4mm筛孔的粉碎机加工的木屑(长条形)或15％左右的对开轧棉子壳,以提高培养基的空隙度和连结性。 2 按比例配制培养基的优点 ①培养基孔隙有大有小分布均匀,透气性、持水性好,湿度上下一致,在正常温度下培养,菌丝生长迅速、粗壮浓密、洁白有光泽。②培养基中粗细木屑并存,接种后菌丝先分解细木屑,前锋菌丝生长快,后面菌丝继续分解粗木屑养分足,前后菌丝一致,杂菌少,经分解的培养料不易收缩脱壁,菌种抗老化,保存期长。③菌种块结持性好。由于粗 Mushrooms sawdust species, the thickness of the woodchucks directly related to the physical structure of the medium, affecting mycelium growth and strain quality. In practice, the author worked out a reasonable proportion of sawdust thickness, access to high-quality mushroom strains. 1 Specific methods ① According to the general requirements for the preparation of different thickness of wood chips, rough wood chips for the 3mm or so, fine sawdust for band saws or disc saws sawdust. ② The proportion of the amount of wood chips determined by the proportion of conventional woodchip medium, for example, which accounted for coarse sawdust accounted for 65% to 75% by weight of sawdust, sawdust accounted for 25% to 35%, fine sawdust can be added 25% with Coarse wood shaving spent 3.5 ~ 4mm sieve grinder shavings (bar) or about 15% off rolling cotton seed shell, in order to improve the porosity and connectivity of the medium. 2 The advantages of the proportionate preparation of medium ① medium pore size distribution of large and small, breathable, water-holding, humidity up and down the same, cultured at normal temperature, rapid mycelium growth, thick thick, shiny white. ② medium coexistence of coarse and fine wood chips, after inoculation of mycelium break down the first sawdust, striker mycelium grow fast, the back of the mycelium continue to decompose coarse wood chips enough nutrients, consistent before and after the mycelium, a small number of bacteria, the decomposition of the culture material is not easy to shrink off Wall, bacteria anti-aging, long shelf life. ③ strains of bacteria knot good. Due to the rough