Antifreezing of Hardy flowers, night should be stamped with straw or shed inside sleeve; also can be in the shed central every few meters dug a pool, the use of storage tank insulation; or sprinkle ashes in the ground, the general can improve the soil temperature 1 to 2 DEG C.
Anti moisture damage in the long-term sealing, snow days many, outside should have good drainage, reduce the humidity of soil. In addition, in the basin surface or ground sprinkle ash, to increasing temperature, moisture absorption dehumidifying heat effect. At the same time pay attention to tight greenhouse film, prevent water Water Leakage roof.
Anti gas harmful greenhouse organic fertilizer should be fully matured, try to reduce the amount of chemical fertilizer. Sunny windless weather, should be timely ventilation, the harmful gas discharged from the shed.
Anti air humidity inside the greenhouse disease, should pay special attention to prevent the occurrence of powdery mildew, black spot disease, anthracnose disease. Anthracnose can clear spray 500 times liquid control with 75% chlorothalonil at onset; powdery mildew available 1:1:140 equivalent Bordeaux spray control; black spot available 70% thiophanate methyl 1000 times liquid spraying control. In the greenhouse the medication should avoid midday high temperature stage and flowering stage.