代料栽培榆黄蘑,在幼菇阶段往往会发生萎蔫和死亡现象,其原因比较复杂,笔者根据多年生产实践谈点浅见。 (一)菌种不良或接种过量 菌种由于相继转管次数过多而退化;或因栽培种菌龄过长,接种量过大,基内菌丝尚未达到生理成熟,床面就形成大量菇蕾,菇蕾因供养不足而萎缩死亡。预防方法:定期分离和复壮菌种,经严格鉴定和试验,确保质量后再用于生产,不用老化菌种或任意加大接种量。 (二)接种后菌丝生长不健壮 这与配料不合理或播种后管理不当,基质内严重缺氧、内烧、杂菌污染等有关。另外在于实体发育阶段,营养供应不足也会出现 Substitutes cultivation of Ulmus pumila, stage of young mushrooms often wilting and death phenomenon, the reason is more complicated, the author talked about many years of production practice point of view. (A) bad bacteria or over-vaccination due to the number of consecutive tube over-degradation; or due to the cultivation of bacteria age is too long, the inoculum is too large, base mycelium has not yet reached physiological maturity, the formation of a large number of mushroom bed Lei, Gulei due to lack of support and shrinking death. Prevention Methods: Regular isolation and rejuvenation strains, the strict identification and testing to ensure the quality and then used in the production, without aging bacteria or arbitrarily increase the vaccination. (B) mycelium growth after inoculation is not robust This is irrational or improper sowing after planting, a serious hypoxia within the matrix, within the burning, bacteria contamination and so on. Also in the physical development stage, lack of nutrition will appear