The latest course of planting techniques and methods of Polygonum cuspidatum
Polygonum cuspidatum is a perennial herb belonging to Polygonum cuspidatum. Its rhizome can be used for medicine and has the effects of promoting blood circulation, dispelling blood stasis, menstruation, antitussive and so on. It is widely used in daily life and is one of the raw materials of many proprietary Chinese medicine. at present, it is artificially planted all over the place. let's take a look at its planting technology.
1. Land selection and preparation
Polygonum cuspidatum has developed root system, strong cold and drought tolerance, and the requirement for soil is not high. But it is not suitable to be planted in low-lying and waterlogged land. After selecting the planting land, first plough the soil 20-25 cm, remove the larger stones, break up the large soil blocks, and then apply fully mature barnyard manure 1500-2000 kg per mu as base fertilizer. After fertilization, it should be evenly mixed with the soil layer of 5-10 cm, and then make a high border, which is required to be 15-20 cm high and 50-55 cm wide.
2. Methods of reproduction
The propagation method of Polygonum cuspidatum is generally seed and rhizome, but seed propagation takes a long time from sowing to harvest, and the seed germination rate is low and the propagation speed is slow, so rhizome propagation is mostly used in production. Moreover, rhizome propagation has the characteristics of easy material availability, easy survival and quick effect. The root system of the plant is dug out and divided into several segments, with 2-3 bud eyes on each section. Then open holes or trenches on the border to plant, and then cover the soil and water after planting.
3. Field management
After the seedling is unearthed, its growth rate will accelerate with the increase of temperature, so it is necessary to do a good job of weeding and intertillage combined with weeding. When the seedlings grow to a certain extent, it is necessary to time seedlings, replenish seedlings, and increase the ventilation and light transmittance between plants, so as not to grow too dense, affect the growth of seedlings, and easily induce diseases and insect pests. Scientific fertilization is the key measure for high yield of Polygonum cuspidatum, so fertilizer should be applied in time according to soil fertility after planting. Generally, quick-acting fertilizer can be applied 1-3 times with appropriate amount of trace element fertilizer.
4. Pest control
Polygonum cuspidatum has strong disease resistance, there is no disease at the base in the process of cultivation, and the yield and quality are mainly affected by insect pests. The common insect pests are beetles and leaf beetles, which occur in May and mainly eat the tender top tips and leaves of the stem. In serious cases, they will eat up the leaves of the whole plant. It can be controlled by artificial trapping and light trapping, and the effect is more than 90%. It can also be sprayed with dimethoate 2000 times to kill adults.
The above is the introduction of Polygonum cuspidatum planting technology, hope to help you, want to know more related knowledge, please follow us.
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