First, increase the temperature
Before garlic returns to the green stage, it should be mainly to increase the temperature of the ground. It is necessary to remove the coverings on the membrane, such as leaves, crop stalks, dead garlic leaves or dust, to increase the transparency and increase the temperature. The damaged plastic film should be repaired in time to enhance the effect of heat preservation and warming, and to promote the early return of green film to garlic.
Second, fertilizer and water management
After entering the "fright" solar energy season, choose 3 to 5 consecutive days of sunny morning watering topdressing, combined with watering Mushi fertilization 20 kg plus 15 kg of nitrogen and potassium fertilizers. In case of special drought conditions, it may be watered once in late March. In principle, do not water too early, otherwise it may cause disease or secondary growth of garlic. After each watering, the cultivator must be cultivated in time to raise the ground temperature and protect the seedlings. Before and after the Ching Ming Festival, if there is a yellow tip on the leaves, a second top-dressing should be carried out in time to use mainly available nitrogen fertilizer. The amount of mu used should be 20 kg, and the number of waterings should be increased in a timely manner. Generally, the watering should be performed once every 10 to 15 days. Promote plant growth.
Third, prevention and treatment of diseases
In spring, the temperature is low and it is prone to cold weather, which affects the normal growth of garlic. At the end of March, when garlic enters the green stage, the leaves are sprayed with “Bairui†or brassinolide on sunny afternoons to increase their resistance to stress. Leaf blight and gray mold are common diseases of garlic in spring. In the early stage of disease, the white tip of garlic appeared on the leaf tip of the plant, or a pale brown, oval-shaped lesion appeared on the surface of the leaf. When the disease was severe, the leaves died, the base was rotted, and the garlic plant was lodging. When the diseased plant rate reached 15%, it was sprayed with 50% carbendazim 800 times solution or 20% Triadimefon 2000 times solution.
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