How to select Eucommia ulmoides seeds? What are the methods of raising seedlings?

Euonymus ulmoides is a deciduous tree of Eucommiaceae, which is a special precious tree species in China. As one of the traditional Chinese medicinal materials, Euonymus ulmoides has been valued by many growers. At present, Eulex ulmoides planting areas have spread all over the country, and in recent years, research and development of Eulex ulmoides rubber extracted from peel, bark and leaves make its comprehensive utilization value more extensive and its development prospects are very broad.

How do you select seeds?

Choose new seeds that are new, full and have few impurities, and master the method of distinguishing whether they are new seeds or old seeds. The seed coat of the new seed is shiny, and the seed is plump after peeling, yellow in color, and slightly flexible when broken. But the old seed outer skin color hair dark, the seed kernel assumes the black or the deep yellow, the quality crisp easy to break. In addition, it is necessary to prevent the mixing of new seeds and old seeds. The seeds used for spring sowing should be selected from the seeds collected in the autumn of the first year.

What are the breeding methods?

1. Seed treatment

Eulex seeds germinate difficult, this is because the seeds contain Eulex gutta, affecting seed water swelling. In addition, seed germination requires a period of low temperature dormancy to germinate normally. Therefore, seeds must be treated before sowing to improve the germination rate of seeds. Euonymus ulmoides sown in autumn, winter and early spring. It is better to sow seeds before freezing in late autumn, and the seed germination rate is high.

2. Sowing method

Before sowing, deeply plow the soil, rake it fine, irrigate enough water, and sow when the topsoil is loose under the water infiltration. The sowing method of Euonymus ulmoides is generally used as drilling method. Ditches were furrows 3-4cm deep and row spacing 30 - 35cm. Then sow the treated seeds evenly into the ditch and cover it with 2-3cm thick fine soil or fine sand soil.

3. Seedling management

After seed emergence, pay attention to intertill weeding, watering and fertilizing. Seedlings avoid the sun, to appropriate shade, dry season to timely sprinkler drought, rainy season to pay attention to waterlogging. Combined with intertillage, weeding and topdressing for 4-5 times, urea is applied 1-1.5 kg per mu each time, or double medicinal materials are sprayed to protect leaves and strengthen stems.

4. Pest control

The main pest types are: withered branches disease, brown spot disease, tea wing bug, ginkgo silkworm moth, mole cricket and so on. In winter, it can be combined with cleaning the countryside, cleaning the dead leaves, centralized treatment, tightly covered with soil, so that it can be fermented and decomposed, which not only reduces the pollution of diseases, but also accumulates fertilizer. At the same time, the whole garden was sprayed with scott garden antiseptic film to prevent the propagation and spread of germs.

Generally speaking, Euonymus ulmoides is a good economic tree species, which has medicinal, greening, timber and environmental protection purposes. If you want to plant Eulex ulmoides and improve the planting income, you must master the seed selection and seedling skills to assist the later management and growth and development.

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