白背毛木耳采收后的再生耳如何管理?

2025-03-31 10:59:32
推荐回答(1个)
回答1:

白背毛木耳正常是一次接种连收3~4批。头1~2批量多质优,2批后次之,4批少,耳质差。采收第一批毛木耳后,为促使迅速转潮生长第二批子实体,管理上必须注意如下环节:
(1)铲除耳根
常因第一批子实体采收时,耳根没除净,遇气温高时,出现霉烂,导致杂菌污染,无法再生。为此采收时,要沿袋面整朵割下,并用利刀铲除穴口上的残留耳根。
(2)控湿养菌
采后的菌包要停止喷水4~5天,同时加强通风,并把荫棚上遮盖物拉稀,增加光照度,使表面水分收缩。袋内菌丝继续吸收养分,由原来生殖生长转回营养生长,此时温度应掌握在24~26℃,促进菌体复壮,为第二批长耳提供强壮的菌丝体条件。
(3)出耳管理
由于经过长耳一批后,培养基水分已消耗部分。为了诱导原基形成,必须微量喷水,使空气有雾化水淋沐料面,每天正常揭膜通风,更新棚内空气;同时采用温差刺激,干湿交替,促进迅速形成原基,并分化成耳芽,长成子实体。每批子实体采收结束均按上次方法管理,即可顺利转潮长耳,但在3~4批子实体采收后,由于袋内水分,养分相对降低。所以,在喷水的次数与喷水量,要相应地依次逐增。在这阶段可以喷洒木耳增产素等,以增加基外营养分,促使耳片肥厚,提高产量。

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