How to grow Vietnamese sophora root? A detailed guide to the latest planting methods
Vietnamese sophora root (Sophora tonkinensis) is a plant of the genus Sophora in the legume family, also called Guang dougen, and is a traditional Chinese medicinal herb. The main medicinal parts are its dried roots and rhizomes, which have the effects of clearing heat and detoxifying, and relieving pain, and are used to treat sore throat, hepatitis, tumors and other diseases. It is currently mainly distributed in Guangxi, Sichuan, Hunan and other places in China, and has broad planting prospects. Today we will mainly learn about the planting techniques for Vietnamese sophora root. Let's read the content introduced in the article below.
1. Land selection and preparation
Vietnamese sophora root has the characteristics of preferring shade and moisture, being intolerant of cold, and fearing waterlogging. In addition, Vietnamese sophora root is mainly used medicinally for its roots, so the soil layer of the planting site should preferably be deep and the soil texture should be loose. For example, sandy loam, red soil and yellow soil are all acceptable. Another point to note is that it is not suitable for growing in acidic soil or alkaline soil; neutral soil is best. Deeply plow the land, break up the soil clods finely, appropriately improve the soil permeability, and apply enough base fertilizer. Farmyard manure, soil and miscellaneous fertilizers, etc. can be used as base fertilizer, then make beds one meter wide and twenty centimeters high.
2. Cultivation techniques
Vietnamese sophora root is generally planted by seed propagation. The sowing time is usually spring, but seed collection is best carried out around October each year. When sowing, we mainly use two methods, namely direct sowing and seedling transplanting. For direct sowing, we generally use hole sowing, which can reasonably ensure the planting density. The sowing density is generally maintained at a row spacing of forty centimeters and a plant spacing of thirty-five centimeters. For seedling transplanting, the seeds can be evenly scattered directly on the seedbed for raising seedlings, and after the seedlings emerge, they are planted according to a reasonable density.
3. Field management
After sowing, Vietnamese sophora root can generally emerge in about half a month. After the seedlings emerge, it is necessary to observe the emergence situation and replant in time to ensure a full stand of seedlings in the field. In the early stage of growth, Vietnamese sophora root grows very slowly, so weeds are likely to grow in the field. In order to avoid nutrients being absorbed by weeds, intertillage and weeding are needed. When weeding, shallow hoeing should be carried out to avoid damaging the roots of Vietnamese sophora root. In addition, the field soil should be kept moist, and watering should be done appropriately, which is beneficial to the thickening of the roots. At the same time, waterlogging in the field should be avoided, and drainage should be carried out during periods of heavy rain. Also, the amount of watering should not be too large. Finally, topdressing management should be done well to promote plant growth. Because Vietnamese sophora root has strong nitrogen fixation, its demand for nitrogen fertilizer is not great, but appropriate topdressing with nitrogen fertilizer is still needed. Next, root-side fertilization should be carried out reasonably, mainly with compound fertilizer, phosphate fertilizer and micro-fertilizers. Finally, appropriately spraying foliar fertilizer and growth hormones is beneficial to the growth of Vietnamese sophora root.
4. Pest and disease control
The most common diseases of Vietnamese sophora root are root rot and southern blight. These are both fungal diseases and generally occur in seasons of high temperature and high humidity. Root rot is generally controlled with chlorothalonil, while southern blight is controlled with carbendazim. Finally, there is also the threat of insect pests, such as stem borers, pod borers, red spider mites, scale insects, etc. These can all be controlled with corresponding insecticides.
The above is an introduction to the planting techniques for Vietnamese sophora root. I wonder, after reading the above, how confident are you about planting Vietnamese sophora root? Can you achieve high yield and high quality? We look forward to your good news.