1. Improve the method. The use of artificial temperature-controlled seedling raising methods, such as electric hotbeds and industrialized seedlings, is the fundamental measure to solve the freezing problem of seedlings. 2. Strengthen the cold resistance of the seedlings and avoid the leggy seedlings. During periods of low temperatures in rain and snow, use weather as much as possible to clear the gaps and allow the pepper seedlings to be exposed to sunlight. When the snow and snow suddenly stopped turning, no more than a few grasshoppers were placed on the seedbed before and after noon to prevent the seedlings from losing water and wilting. Bed soil moisture, seedlings vulnerable to frost damage, so before the onset of cold waves to control seedbed watering, bed soil too wet to sprinkle a layer of hay ash. 3. Balanced fertilization. Increase phosphorus and potassium fertilizers, and use cold resistance at the seedling stage. Seedlings spraying 0.5% to 1% brown sugar or glucose solution can enhance the cold resistance. Spraying twice (with 7 days interval) 0.5% calcium chloride solution in the 3 to 4 leaf stage to enhance cold resistance. 4. Insulation antifreeze. During the cold wave, the bed was covered closely. When ventilation is performed for a short period of time, it is necessary to prevent cool air from directly blowing into the bed. Cover straw at night. The straw leaves can be sprinkled on the seedlings and cleared after the cold wave. In the snow days, after the snow stopped, the snow was promptly cleared out of the nursery site.
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Antifreeze of pepper seedlings in winter greenhouse
During the breeding period of winter shed pepper, it is often attacked by cold current suddenly, the temperature suddenly decreases, and the seedlings are susceptible to frost damage. The severity of frost damage in seedlings is also related to the speed at which the temperature rises after low temperatures. The following antifreeze measures should be taken.