1. Increase ground temperature
Before garlic enters the greening period, the ground temperature should be raised. The covering on the membrane, such as leaves, crop stalks, dead garlic leaves or dust, etc., should be removed as soon as possible to increase light transmittance and raise the ground temperature. The damaged mulch should be repaired in time to enhance the effect of heat preservation and warming, and promote the early rejuvenation of mulching garlic.
2. Fertilizer and water management
After entering the "Jingzhe" solar term, choose watering and topdressing in the morning on a sunny day for 3 to 5 consecutive days, combined with watering acres and fertilizing 20 kg plus 15 kg nitrogen and potassium fertilizer. In case of special drought, you can water it once in late March. In principle, do not water too early, otherwise it will easily cause disease or secondary garlic growth. After each watering, it should be cultivated in time to raise the ground temperature to protect the roots and seedlings. If the leaves have yellow tips before and after the Ching Ming Festival, a second topdressing should be carried out in time, mainly using quick-acting nitrogen fertilizer, the usage amount per mu is 20 kg, and the watering frequency should be increased in a timely manner, generally watering once every 10-15 days. Promote plant growth.
3. Prevent and control diseases
The temperature in spring is low, and it is prone to cold weather in spring, which affects the normal growth of garlic. At the end of March, when garlic enters the greening period, choose to spray "Bihu" or brassin on the leaves in the afternoon on a sunny day to improve its resistance to stress. Leaf blight and gray mold are common diseases of garlic in spring. At the initial stage of the disease, small white dots appear on the tip of garlic leaves or light brown oblong disease spots appear on the surface of the leaves. When the disease is severe, the leaves die, the base rots, and the garlic plants fall down. When the diseased plant rate reaches 15%, use 50% carbendazim 800 times liquid or 20% Fenmeining 2000 times liquid spray for control.
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