What points should be noted when growing Saposhnikovia divaricata? Explained clearly in one article
Saposhnikovia divaricata is mainly used to treat wind-cold, colds and skin diseases. It is often used in our daily lives, but we are not very familiar with it. Perhaps we have only vaguely heard the term "Fangfeng" and feel as if we have seen it somewhere, but as its medicinal effects and scope of use have been developed, many people have devoted themselves to the Saposhnikovia divaricata growing industry, and some even grow two plants on their own balconies. What Qinnong Web wants to teach everyone today are several points that need special attention during the growing of Saposhnikovia divaricata, hoping to help everyone.
1. Seed treatment methods
If sowing with seeds, we first need to find some river sand, then wet the river sand, then put the seeds into the river sand and stir, so that each seed is evenly coated with a layer of sand, then place the treated seeds in an environment with a suitable temperature for fifteen to twenty days. When young sprouts appear on the seeds, they can be sown.
2. Sowing and seedling raising methods
There are two ways to sow Saposhnikovia divaricata. One is sowing with seeds, and the other is sowing with tubers. Let us first talk about sowing with seeds. Make furrows in the land at a spacing of twenty to twenty-five cm per row, then evenly scatter the seeds into the furrows. The depth of the furrows must not exceed four cm. Finally, cover the seeds with a thin layer of soil. For tuber planting, first dig out the tubers, cut them into small segments, each about ten cm long, then make furrows in the land at a row spacing of twenty-five cm, place them at a spacing of about ten cm per plant, and finally cover with a layer of soil to cover the seeds.
3. Scientific fertilization methods
When planting, nitrogen fertilizer needs to be applied as a base. Generally, farmyard manure is used, with an amount of about 2,500 kg. Second, about twenty to thirty jin of phosphate fertilizer also needs to be spread to supplement fertility. When the Saposhnikovia divaricata seedlings in the field grow to three to four cm, we first need to remove the weeds in the field, then apply about sixty kg of phosphate fertilizer and potassium fertilizer as a top dressing, and it can also be diluted with water for irrigation. The second top dressing is when the seedlings have developed to about fifteen cm. At this time, it is mainly to promote the seedlings, so urea and potassium fertilizer are mainly used. The last top dressing is when the tubers of Saposhnikovia divaricata swell. At this time, we mainly spray the medicinal material "Gendaling", and apply about twenty kg of boron fertilizer per mu on average.
4. Effective pest and disease control
Common pests and diseases of Saposhnikovia divaricata include powdery mildew, root rot, leaf spot, yellow swallowtail butterfly, yellow-winged fennel borer and carrot microtube aphid, etc. Powdery mildew mainly appears in summer and autumn and causes great harm to the leaves of Saposhnikovia divaricata. The control methods we use are increasing the application of phosphate and potassium fertilizers as well as strengthening light and permeability. When the disease occurs, spray with 50% thiophanate-methyl 800—1000 times liquid for control. Root rot mainly harms the roots. Drainage measures should be taken in advance and accumulated water in the field should be drained promptly. Yellow swallowtail butterfly, yellow-winged fennel borer and carrot microtube aphid are several of the most serious pests. We generally spray with trichlorfon solution or dichlorvos solution, once every seven to eight days, about three consecutive sprays.
5. Correct harvesting methods
Saposhnikovia divaricata is generally harvested in November of the second year after planting this year. General Saposhnikovia divaricata branches and leaves will grow to three hundred cm high, so it is generally time to harvest when the branches and leaves slowly turn yellow-green. If you are worried that it is not the right time, you can first find a plant in the field and dig away the nearby soil to see whether the tuber has grown. If the tuber is thirty to thirty-five cm long, you can harvest with confidence.