How to Grow Cynanchum glaucescens Well? A Detailed Guide to the Latest Cultivation Techniques
Cynanchum glaucescens is also called Cynanchum glaucescens leaf, cough medicine, knot-dissolving herb, etc. It is one of the traditional Chinese medicinal materials, and its dried rhizome and roots are mainly used as medicine. At present, it is cultivated in Zhejiang, Jiangsu, Jiangxi, Hunan, Guizhou and other places in China. Its main effects are dissipating phlegm and relieving cough, and it is used to treat symptoms such as cough with excessive phlegm and chest fullness with panting. So do you know how to grow Cynanchum glaucescens? Below, let us learn about its high-yield cultivation techniques together.
1. Field Preparation
Cynanchum glaucescens has the characteristics of preferring warmth and moisture and being intolerant of drought. It is generally suitable for planting in plots with deep soil layers, sufficient soil fertility, and rich humus content. Secondly, the terrain of the planting site should be relatively flat, with open terrain, sufficient sunlight, abundant water resources, and convenient irrigation and drainage. When preparing the land, it should be plowed and turned multiple times, and base fertilizer should be applied heavily, mainly decomposed livestock manure or compost, applied together with phosphate fertilizer. After fertilizing, plow deeply again, mix the base fertilizer evenly, and finally, according to the terrain of the planting site, reasonably open furrows and make beds, and rake the bed surface level before cultivation.
2. Planting Methods
Cynanchum glaucescens generally has two planting methods, namely seed propagation and transplanting of stem seedlings. Regardless of which propagation method is used, the best planting time is from the end of March to early April each year. The planting density needs to be determined according to the fertility of the soil. Generally, it is planted at a row spacing of 30 to 40 cm and a plant spacing of 30 cm. For seed propagation, the seeds need to be soaked in warm water first to promote germination, and then planted. After covering with soil, straw or plastic film should also be covered, which can increase the emergence rate. For transplanting stem seedlings, 2 or 3 nodes of rhizome are cut from below the root collar for planting. After planting, sufficient settling water should be watered to increase the survival rate.
3. Field Management
After the Cynanchum glaucescens seeds emerge, we should remove the straw or film and do a good job of thinning and filling in seedlings. Secondly, the growth rate of Cynanchum glaucescens at the seedling stage is very slow, so we should carry out intertillage and weeding from time to time to promote nutrient absorption and enhance soil permeability, so as to increase the growth rate of Cynanchum glaucescens. When the Cynanchum glaucescens seedlings grow to about 15 cm, we need to carry out the first topdressing. The main topdressing is urea, and later it is applied once every half a month. The amount of fertilizer should not be too large. When fertilizing in September, we need to use phosphate fertilizer or cake fertilizer, compound fertilizer and other fertilizers to promote the yield of Cynanchum glaucescens. In addition, we should pay attention to the management of field moisture, keep the soil moist, and pay attention to drainage.
4. Pest and Disease Control
The resistance of Cynanchum glaucescens is actually relatively strong, and its most common disease is nematode disease, which mainly harms the roots of Cynanchum glaucescens and seriously affects its yield. Before the disease occurs, we should pay attention to crop rotation, improve sowing, and apply fertilizer scientifically to enhance plant resistance and do a good job of field sanitation, which can achieve a very good preventive effect. In the early stage of the disease, we can use dibromochloropropane for poisoning and killing. In addition, Cynanchum glaucescens is also greatly harmed by aphids, which has a relatively large impact on the yield and quality of Cynanchum glaucescens. Dimethoate emulsifiable concentrate can be used for control.
The above is the cultivation method of Cynanchum glaucescens brought to you by the editor today. I hope it can help friends who grow Cynanchum glaucescens and those who want to grow it. Thank you all for your long-term support and encouragement to the editor. Your reading is the affirmation of the editor's work. At the same time, I also wish everyone smooth planting in the new year.