Wind protection is Umbelliferae. Alias ​​is used for wind protection and wind protection in the east and roots are used as medicine. Sweet, sweet, warm. There is a solution of sweating, dehumidification and dehumidification, attending cold, cold, headache, fever, joint pain, and tetanus. In addition, windbreaks and windbreaks are also available for medicinal use.
Morphological characteristics: perennial herb, plant height 30-100 cm, all hairless. The main root is thick and long, grows vertically, and the surface is light in laurel color. The flowering period is from August to September and the fruiting period is from September to October. Wild in hilly areas, hillside grass.
Cultivation management
Selection
Wind protection is not very strict with the soil requirements, but the land should be selected to be sunny and dry, and the soil with loose, fertile soil, deep soil and well-drained sandy loam is most suitable. Clay, alfalfa, acid or heavy saline soil should not be planted.
Site preparation
The windbreak is a deep-rooted plant, which can grow up to 50-70 cm long in two years. Therefore, in the fall, it is required to deepen the land by more than 40 cm. In the early spring, the land should be leveled and polished, and the roots and debris should be picked up to create good basic conditions for wind-proof growth.
Fertilizer
In order to meet the needs of perennial windbreak growth and development on nutrient composition, base fertilizer must be applied, and 3,000-4,000 kilograms of high-quality farmyard fertilizer should be applied per acre, and superphosphate 20-30 kilograms or ferric phosphate 8-10 kilograms should be added. It is best to apply to the surface of the ground before the deep fall, and then turn into the plough. It should be administered before the site preparation. Fertilization should be uniform.
Seed treatment and sowing
The well-selected seeds are soaked in warm water for 3-5 days before sowing. Immerse them in warm water (35°C) for 24 hours and soak in warm water (40°C-50°C) for 8-12 hours to make the seeds fully absorb water to facilitate germination. When soaking, do it while stirring, sprinkle the seeds, remove the seeds and impurities floating on the surface of the water, and soak the full seeds of the bottom, and soak them after sowing.
When the seedlings are planted in the shed, the whole surface of the seedlings shall be well-sprayed and sprayed with water, and then the seeds shall be sown by hand and the seeds shall be sown at 2.5-3.0 kg per mu. After the sowing is even, use a bamboo sieve or iron sieve to sieve 2.0 cm of fresh wet soil, cover the seed, and then insert the bow tie membrane.
The seedlings of the open earthworm seedlings are drilled, drilled artificially to open the furrows, spaced 15 to 20 centimeters apart, and ditched 2-3 centimeters deep (slightly sandy loam and slightly deeper sandy soil). Seeds are evenly spread in the furrows with the on-demand device. 1-1.5 cm thick, to be a little dry to press and hold.
Live production of the field, the sowing method is basically consistent with the open field nursery method. However, the row spacing should be increased to 25-30 centimeters, the amount of seed per acre fell to 1.0-1.5 kg.
Field management
Seedling management deduction plastic film arched nursery, sowing until the emergence stage of the closed period, should always check, control the temperature within the shed, generally 20 °C -25 °C as the appropriate temperature, such as the weather is too hot, the temperature inside the shed is too high, to Cover grass and shade for cooling. When the seedling seedlings see green, the temperature inside the tent can be adjusted by removing the film and releasing the air. With the growth of the seedlings, the vent holes are gradually enlarged and the seedlings are kept until the plastic film is removed. Weeds occur within the plant and weeds must be removed in time.
Drought protection, and strive to fully seedlings open field nursery fields and production of live fields, sowing to the emergence of management is very important. In this period, we must take all drought protection measures. Pressing, stepping, boring, rolling, and stone sculpting should be used in combination with the time, so as to ensure adequate soil moisture in the sowing layer to meet their germination needs and prevent the soil from “drying up†and seeds. The phenomenon of "buds dry" occurs, and strive to achieve full seedlings, Miao Zhuang.
Weeding and loosing soil, preventing weeds and growing weeds in the field will affect the growth of seedlings. At the same time, it is necessary to carry out 2-3 times of cultivating loose soil, improve the environment for the growth of roots of seedlings, promote deep rooting and achieve the effect of strong seedlings.
Sapling seedlings, seedlings, insect protection and seedlings 15-20 days after emergence, seedlings up to 3-5 cm when the thinning seedlings to prevent over-crowding seedlings, small growth. When it grows to about one month, the seedlings will be as high as 10 cm or more, and the final seedlings will be planted. The seedlings will be planted 2-3 cm from the seedlings, and the field seedlings will be 8-10 cm away from the seedlings. At the same time, soil pests and seedling pests occurred in succession at the seedling stage, and field investigations and prevention work must be done.
Water purification is the process of removing undesirable chemicals, biological contaminants, suspended solids, and gases from water. The goal is to produce water fit for specific purposes. Most water is purified and disinfected for human consumption (drinking water), but water purification may also be carried out for a variety of other purposes, including medical, pharmacological, chemical, and industrial applications. The methods used include physical processes such as filtration, sedimentation, and distillation; biological processes such as slow sand filters or biologically active carbon; chemical processes such as flocculation and chlorination; and the use of electromagnetic radiation such as ultraviolet light.
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