What should Du Zhong pay attention to when cheating?

Cuscuta chinensis is a traditional Chinese herbal medicine in China. It is the dried root of Cuscuta chinensis. When used as medicine, it has the functions of tonifying deficiency, strengthening tendons and bones, and preventing miscarriage, and has high economic value. When picking, the root ring is torn off The current girdling and recycling method can improve the benefit.

Let's take a look at the precautions.

1, peeling time

The optimal peeling time of Semen Cuscutae is about 25-30℃, and the humidity of gas environment is 70%-90%, that is, peeling is carried out in May-June. During this period, the temperature is very high and stable, there is a lot of precipitation, and the relative humidity of the air is high. The leaves of the main stem of Cuscuta chinensis are all brought out, so it is best to peel them.

2, girdling method

The first thing to do is to cut a circle horizontally at the branch of the trunk, depending on the vertical T-shaped vertical cut. Pay attention to the length of the vertical cut. Generally, when the vertical cut is less than 20 cm away from the road surface, cross it once. The cutting height should be well controlled, so that the phloem can be sawed off without damaging it. At this time, it is necessary to stir up the longitudinal split with a sharp knife, pry it while tearing it by hand, and separate the connected skins at the same time until peeling.

In the whole peeling process, you don't have to be good at this, and you don't have to touch the peeled trunk to avoid damaging the mechanical system.

3. Safeguard measures

After girdling, protective measures should be taken to accelerate the regeneration of new skin. Generally, the relative humidity of the air after girdling is above 80%, which is beneficial to the regeneration of new skin. After peeling, wrap the peeling part with transparent plastic film. The intersection of plastic film should be firmly tied to prevent it from being gently blown dry by the wind. Cable should also be tied to the left and right sides, with the upper end keyed and the lower end loose.

4. Frequently asked questions

When girdling, Eucommia ulmoides Oliv. Should choose the growth and development of more than 65,438+00 years. Trees with declining growth or abnormal growth and development are not suitable for girdling, and the girdling length should not exceed 1 m, so as not to inhibit the normal growth of the main stem. Avoid rainy days when girdling, in case the girdling wound can't heal for a long time and grow mildew, which can't produce new skin and endanger root regeneration. When the trunk is seriously dead, it is best to choose the temperature of wearing a hat in rainy mountain areas for girdling. When girdling, it is also necessary to be careful not to damage the cambium of the trunk.