Early management of garlic in spring

The field management of garlic in spring mainly refers to the management from the rise of temperature in spring to the harvest period. This period is not only the bulb expansion period of garlic, but also the period of frequent occurrence of diseases and insect pests. Therefore, doing a good job in the management of this period is of great significance for the bumper harvest of garlic.

First, fertilizer and water management: the application of fertilizer should grasp the principle of invigorating and promoting weakness. At the same time, fill the "two water", that is, green water, bulb swelling water. Generally speaking, after the garlic turns green, the growing plots apply little or no fertilizer; the plots with yellow seedlings and weak growth should be combined with watering and apply 10-15 kg of urea or 15-20 kg of high-efficiency compound fertilizer per mu in the first ten days of March. In the first and middle of April, combined watering, urea or high-efficiency compound fertilizer 20-25 kg per mu.

Second, the prevention and control of diseases and insect pests: the main diseases and insect pests are maggots, blight, gray mold, garlic poison and so on.

⑴ ground maggot. From late March to early April, high-efficiency and low-residue pesticides, such as phoxim, 100ml / mu, 40-50kg of water, were sprayed at the peak egg stage, or 1000-1500 times of liquid irrigation.

⑵ epidemic disease. Spray 58% metalaxyl manganese zinc wettable powder 500 times, once every 7 days.

⑶ Botrytis cinerea. Spray with 1500 times of 50% Sukeling wettable powder, once every 7 days.

⑷ virus disease. At the initial stage of the disease, spray control with 400 times of 5% bacteriophage, and pay attention to the prevention and control of aphids.