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永年是蔬菜生产大县。全县大棚面积约50万亩,韭菜是冬季大棚温室主要栽培的蔬菜之一,其经济效益和社会效益较为显著。但由于管理不佳,引起韭菜叶片干尖,发霉腐烂,有的南北边垄的韭菜生长缓慢而细弱,品质差,不能同时收割,降低产量,影响经济效益。现将我们多年克服上述现象的经验介绍如下。一、保温棚室密闭后,保持白天20—24℃,夜间12—14℃。株高长到10厘米以上时,白天保持16—
Yongnian is a vegetable production county. The county shed area of about 500000 acres, leeks are greenhouse winter greenhouse cultivation of vegetables, one of its economic and social benefits is more significant. However, due to poor management, causing leek leaves dry tip, moldy rot, some south-north ridge of leeks grow slowly and weakly, poor quality, can not harvest at the same time, reduce production and affect economic efficiency. Now we have years of experience to overcome the above phenomenon are described below. First, keep the greenhouse closed, keep 20-24 ℃ during the day and night 12-14 ℃. When the plant height is longer than 10 cm, keep 16-