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曼陀罗在花卉播种育苗期间,常常会出现异常幼苗,针对这种现象,我们应及时采取相应的措施予以防治。带帽苗育苗时床土过干,覆土太薄,导致种子出苗后种壳粘附子叶随苗出土。为防止出现带帽苗,应保持床土湿润,种子播撒后覆土要适中。另外,有些种子在播种前须进行破壳处理,如女贞、棕榈等。万一出现带帽苗,宜在清晨苗湿润时细心剥除种壳。高脚苗由于种子播撒量大,出苗后床温过高或通风不良所致。
Datura flowers during planting seedlings, often abnormal seedlings, in response to this phenomenon, we should promptly take appropriate measures to control. Seedlings with hat seedlings bed soil over dry, overburden too thin, resulting in seed seedling leaves after seedlings with clay. To prevent the emergence of hat with seedlings, soil should be kept moist, after sowing seeds to be moderate soil. In addition, some seeds should be broken before sowing seeds, such as privet, palm and so on. In case of hat with seedlings, should be careful in the early morning seedlings peeled shell species. Tall seedlings due to the large amount of seed, after emergence of bed temperature is too high or poor ventilation.