The latest course on seed propagation techniques and methods of Rhizoma thunbergii

Zhonglou is also known as seven leaves and a flower, and its medicinal site is generally its rhizome, which is mainly planted in Yunnan, Guizhou and other places in China. There are two kinds of propagation methods, namely seed propagation and plant division propagation. What the editor wants to introduce to you today is the seed propagation technology of Zhonglou. Let's take a look at it.

1. Seed selection

If the seeds are planted on their own, they can generally be harvested in September and October. The harvested seeds should separate the pulp from the seeds, and choose the seeds with high yield, good quality, full grains, mature, no diseases and insect pests, no mildew and mechanical damage. But the purchased seeds, then we only need to choose excellent varieties of heavy buildings, because such seeds are processed and treated seeds, the emergence rate is relatively high.

2. Seed treatment

After screening, the self-retained seeds need to be stored in warm sand at room temperature for a period of about 25 to 30 days. Then after the warm sand treatment, the seeds are treated at low temperature, which can promote the budding speed of the seeds. The temperature of low temperature treatment is generally about 3 to 5 degrees, and the storage time is about 25 to 30 days. In the process of treatment, it is flipped about once a week to check for mildew. After low temperature treatment, the seeds were soaked with chemicals to improve the rooting speed of seeds. Finally, the seeds are placed at a constant temperature of about 20 degrees to promote germination. In the process of accelerating germination, appropriate water spraying is required to maintain the humidity of the seeds, and the seeds can be sown after about one and a half months.

3. Sowing and reproduction

There are generally two ways to sow the seeds of Rhizoma thunbergii, which are strip sowing and spreading. Strip sowing is beneficial to the later field management, while sowing is relatively simple in the process of sowing. The daily distance is usually about five centimeters, then the seeds are evenly scattered in the ditch, and finally covered with soil to cover the seeds. Sowing is to level the ground first, sow the seeds evenly, and finally gently fear the seeds into the soil, so that the seeds can not be exposed to the ground.

4. Seedling stage management

After sowing, you can cover it with a layer of dead leaves and add water, and you can add an appropriate amount of nutrient solution to the water, which is conducive to the seed absorbing nutrients and sprouting quickly. Water should be irrigated at least three or four times before emergence, and shade should be set up before emergence. There is also reasonable fertilization, mainly organic fertilizer. Finally, we should do a good job in the prevention and control of diseases and insect pests, the most important of which are underground pests, root rot and sudden collapse. Underground pests are mainly ground tigers and grubs, which can be poisoned by trichlorfon, while root rot and quenching can be controlled by carbendazim.

The reproduction method of Rhizoma Polygonatum seed is not only the most traditional breeding method, but also the most practical breeding method. This is the end of the editor's sharing, hoping to help more friends who like to plant heavy buildings. If you have any other questions to consult, remember to leave a message for the editor.