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(四)加强田间管理1.做好定植后小环棚覆盖阶段的管理工作:这阶段应根据秧苗及天气情况,灵活做好通风透光工作,使棚内白天气温在18—25℃,夜温在12—15℃,注意勿使薄膜上疑聚水珠并防止徒长。搭小棚的,前10天均以保温为主,后10天以通风见光为主,中棚内的小棚,后10天时白天要揭去薄膜增光,夜里再盖上保温。水分管理以偏干为佳。大、中
(D) to strengthen field management 1. To do a good job after the planting of small ring shed covering the stage of management: This stage should be based on seedlings and weather conditions, flexibility and good ventilation and light work, so that the greenhouse during the day and the temperature at 18-25 ℃ night Temperature at 12-15 ℃, careful not to make the film suspect poly drop and prevent leggy. To take the shed, the first 10 days are mainly insulation, after 10 days to see the air-conditioned, shed in the shed, the day after 10 days to peel off the film to add light, and then covered with insulation at night. Water management to partial dry is better. Big