Licorice field management

The time seedlings of 1 ~ 2 true leaves grow between the seedlings and the fixed seedlings, and the distance between the seedlings is about 5 cm. When the seedlings grow 3 ~ 4 true leaves, the distance between the seedlings is 10 house meters ~ 15 cm. Although irrigated Glycyrrhiza uralensis is a deep-rooted drought-resistant plant, it is not strong in drought resistance because of its shallow roots in the seedling stage. Therefore, after the seedlings grow to 4 true leaves, the head water should be shallowly irrigated or sprinkled, not flooded. Pay attention to keep the seedlings moist, watering times should be neither more nor too little, in order to ensure the water supply at the seedling stage. Little water is irrigated after the adult stage. From July to August, Rain Water drained water in time so that there was no stagnant water in the field and prevented rotting roots. The key to the cultivation of licorice is to protect the seedlings. Generally, the plants will not be watered after they grow up. Weeding seedlings should be cut in time after weeding, so that there are no weeds in the field. This is the key to high quality and high yield. If possible, herbicides can be closed before emergence after sowing. 2 bags of daihuanglong (20% chlorosulfuron) wettable powder per 667 square meters and 2 ~ 4 bottles of Acetochlor per 667 square meters are sprayed in the field. After emergence, the herbicide that kills monocotyledons can be sprayed to eliminate weeds. Topdressing for the first time was carried out after setting seedlings, topdressing 10 kg urea every 667 square meters and applying it in trenches. Urea was applied in the second topdressing when the seedling height was 20 cm, 15 kg per 667 square meters.