Field management of growing licorice

First, about 15 days after licorice planting, seedlings began to emerge. After finishing the seedlings, 15 kg of urea per mu was applied to promote the growth of seedlings, and from the end of May to the beginning of June, 30 kg of diammonium phosphate was applied per mu and watered after application. During this period of time, it is necessary to apply fertilizer and water scientifically to ensure exuberant growth at the seedling stage and strive for closure as soon as possible. During the rainy season, do a good job in dredging and drainage to prevent the occurrence of powdery mildew. Before freezing, pour overwintering water and apply 3000 kilograms of fine farm manure per mu to survive the winter.

Second, in February of the second year after planting, cut off the stump on the ground, pour once the green water, and draw a hoe when the border surface is not sticky. The hoe should be shallow so as not to damage the rhizome of the irrigated layer. When the seedling is 20 cm high, 30 kg diammonium phosphate is applied per mu and watered after application. After that, it is an important period for the growth of licorice. 75 kg of 0.3% potassium dihydrogen phosphate solution was sprayed on the leaves every 10 days for three consecutive times. In the later stage of growth, watering should be strictly controlled. before the flood season, we should be prepared to discharge water and spray mancozeb and carbendazim alternately to prevent the occurrence of powdery mildew.

Third, pest control 1, rust prevention and control: remove the disease and focus on burning. The initial spray Baume 0.3-0.4 degrees stone sulfur mixture or 97% rust sodium 400 times solution. 2. Prevention and control of brown spot: remove the disease and burn it centrally. The initial spray 1:1:1-160Bordeaux liquid or 70% methyl topiramate wettable powder 1500-2000 times. 3. Prevention and control of powdery mildew: spray Baume 0.2-0.3 degree stone sulfur mixture. 4. Aphid control methods: clear the garden in winter and bury the plants and fallen leaves deeply. Spray 50% fenitrothion 1000-2000 times or 40% dimethoate EC 1500-2000 times or 80% dichlorvos EC 1500 times every 7-10 days for several times in a row.