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生产越冬菠菜,可弥补早春市场的不足,同时也是大棚生产蔬菜的一个主要搭配品种。但是,实际生产中,在返青后有死苗现象,应加强越冬管理。一、死苗的主要原因1、播种时间不合理,有的提早,有的延后。呼和浩特地区播种越冬老根菠菜应在9月上旬,不应超出9月10日。如果提早播种,苗子长得大,易通过春化阶段,造成来年抽苔严重,品质低劣,同时易受冻害,风吹雪压受损。播种过晚,
Spinach production overwintering, can make up for the lack of early spring market, but also a major greenhouse production of vegetables with a variety. However, in actual production, there is the phenomenon of dead seedling after turning green, and winter management should be strengthened. First, the main reason dead seedlings 1, sowing time unreasonable, and some early, and some delayed. Hohhot sowing winter mustard spinach should be in early September, should not exceed September 10. If sown early, the seedlings grow large, easy to pass through the vernalization stage, resulting in serious haze in the coming year, poor quality, vulnerable to frost damage, snow pressure damage. Sowed too late,