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蔬菜育苗过程中,常常会出现异常幼苗,如不采取有效防治措施,就会影响秧苗素质。1.顶盖与戴帽苗。产生原因是床土过干,覆土过薄所致。防治措施:苗床底水要浇足,盖土厚度要适宜。茄子、辣椒盖1厘米,黄瓜1.5厘米。播种后出苗前,床面覆盖地膜,保持土壤湿润。如出现“顶盖”,用手指轻轻将其敲碎,然后喷水:如出现“戴帽苗”时,先喷水,待种壳吸湿后用软毛刷轻轻从苗上扫过,可将“帽子”除掉。2.高脚苗。形成的主要原因:一是播量过大;
Vegetable nursery process, often abnormal seedlings, if not take effective control measures, it will affect the quality of seedlings. 1. Caps and hats The reason is bed dry, overburden too thin. Control measures: Seedling bed water to be poured foot, cover soil thickness should be appropriate. Eggplant, pepper cover 1 cm, cucumber 1.5 cm. Pre-emergence after sowing, the bed covered with plastic film to keep the soil moist. Such as the emergence of “top cover”, gently knock it with your fingers, and then water: If there is “wearing a cap seedling,” the first water, until the shell moisture absorption soft brush gently swept from the seedlings, Can be “hat” removed. 2 high seedlings. The formation of the main reasons: First, sowing too large;