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1.选好种,育壮苗。当前结球生菜以进口较多,表现好的结球菜有:皇帝、凯撒、奥林匹亚、大湖659等。播前将种子用55℃温水浸10分种,待水温降至室温时,浸5～6小时,淘洗后置适温处催芽1～2天。在催芽过程中,每天淘洗3～4次,使种子发芽整齐一般。播种时,先将苗床浇透底水份渗透后撒一层薄细土,将种子均匀撒播在苗床上,覆土0.5～1.0厘米,再盖上塑料薄膜和草苫,进行保湿、稳湿。3叶期进行间苗,保留遗传性良好的个体,保
1. Choose a good species, nurturing seedlings. The current lead lettuce to import more, the performance of good caking dishes are: the emperor, Caesar, Olympia, the Great Lakes 659 and so on. Seeds before sowing with 55 ℃ warm water immersion 10 minutes, until the water temperature dropped to room temperature, soak 5 to 6 hours after the panning pre-adapted temperature sprouting 1 to 2 days. In the process of germination, panning 3 to 4 times a day, so that the seeds germinate neatly in general. Sowing, the first seedbed pouring through the water after the penetration of a thin layer of soil infiltration, sowing seed evenly in the seedbed, cover 0.5 to 1.0 cm, and then covered with plastic film and straw, moisturizing, steady wet. 3 leaf stage between the seedlings, to retain genetic good individuals, Paul