How can artificial planting licorice be high-yielding?

How can artificial cultivation of licorice produce high yields? What should I pay attention to? Please also have experience to help introduce the net tilled artificial planting licorice technology, the following list for users to refer to. Selection of soil for planting licorice: licorice likes dry climate, cold resistance, suitable for deep soil layer, good drainage, low groundwater level, rich in calcium sandy soil planting, soil to neutral or slightly alkaline is appropriate. Waterlogging depression, high groundwater level, acid soil is not suitable for planting. Selection of licorice seedlings and planting methods: licorice roots are generally strong stem reproduction. After harvesting licorice in autumn or spring, thick roots are used as medicine, and fine roots and strong stems are selected as seeds, which are cut into small sections of 10- 15 cm, each section has 2- 3 buds. In autumn, the soil will be deeply ploughed 30- 50 cm, apply enough base fertilizer, manure 2500 kg per mu, calcium superphosphate 200 kg, after ploughing rake flat. Sowing in the first ten days of April in the spring of the next year, trenching according to the row spacing of 30 cm, ditch depth of about 10 cm, placing the roots and strong stems flat in the ditch according to the plant spacing of 10--15 cm, covering the soil, raking, filling, watering and mulching. It can also be used for centralized seedling cultivation, scattered transplanting, ridge cultivation, and covering with straw or plastic film. Daily management of licorice: licorice should always keep the soil moist before and after emergence, so as to facilitate emergence and seedling production, and water it in time for drought. Seedlings grow out of 2- 3 true leaves, to carry out thinning seedlings, seedling spacing after 10--13 cm, seedling weeding in time, plants grow up strong roots exposed to the ground, should be properly cultivated soil. There are big nests to uproot, and others to hoe. In winter, 2000- 2500 kg of soil fertilizer can be applied per mu. After two years of cultivation, the roots and strong stems of licorice are already covered with the whole lot, so special management is not needed. Control of licorice diseases and insect pests: rust with 0.30--0.40 degrees of stone sulfur mixture or 97% sodium rust 400 times control. Brown spot 1:1:100--160 Bordeaux mixture or 70% thiophanate-methyl WP 1500--2000 times solution control. Powdery mildew was controlled by 0.20--0.30 ℃ of sulfur mixture. Aphids were controlled with 50% fenitrothion 1000- 2000 times solution or 40% dimethoate EC 1500- 2000 times solution. Red spider spray with 20% dicofol 1500--2000 times solution or 25% chlordimeform 500--1000 times solution once a week for several times. Licorices harvesting: Licorices can be harvested after 2- 3 years, in late September-early October, when the stems and leaves on the ground wither. Liquoric root deep, must dig deeply, do not cut off or hurt the root skin, dig out after removing residual stems, soil, avoid washing with water, take advantage of fresh separation of main roots and lateral roots, sun to half dry, bundle into small handles, and then sun to completely dry medicine. Click for more licorice planting technology Click for more herbal planting technology