Vegetables grown in high temperature season include celery, cabbage, broccoli, broccoli, Chinese cabbage, mustard, lettuce and autumn greenhouses, and solanaceae in greenhouse cultivation. The production practice shows that in addition to the selection of dry and well-performed seedlings in the high-temperature season, the seedlings should not be planted within three years of the same plot, but five defenses should also be implemented:
First, anti-high temperature. Lettuce and celery are difficult to germinate under high temperature. Seeds can be soaked for 6 hours and then wrapped with wet gauze in a well 10cm from the surface of the water, or placed in the refrigerator at low temperature: celery is 3-6°C/48 hours, lettuce For 8°C/72 hours, it can promote germination and increase germination rate. The temperature is too high at noon on sunny days in summer and should not be sown. After 4 o'clock in the afternoon or on cloudy days, sowing should be selected. After sowing, straw or straw curtains are used to cover the seedbeds. Grass awnings, shade nets, and non-woven fabrics can also be used to build awnings to prevent burning of young sprouts in the hot sun.
Second, prevent storms. Heavy rains in the summer cause the soil to clump, which is not conducive to seed germination and unearthing. The following measures can be taken: 1. Select a plot with high topography and dryness to build a seedbed; 2. Select sandy loam seedlings for frequent stormy areas; 3. Smooth drainage around the seedbed; 4. Use temporary coverage to reduce heavy rain hazards. After the rain should be shallow cultivator, small earth, righting seedlings.
Third, prevent drought. After doing a good job of seedbeds, first planting foot water and then sowing, or after the site preparation to make full water, sowing. Cover the film after sowing and immediately lift the film after emergence. Pour water in the morning and in the evening and sow it. The method of seeding seedlings by instant opening is adopted. The method is: after the first hole is sown, it will not cover the soil temporarily. When digging the second hole, the wet soil that is excavated will be used as the cover for the first hole.
Fourth, anti-adults. High temperature season seedlings, easy to grow, should be early and late ground watering with a watering can, timely sub-miao seedlings, expand seedlings nutritional area. When the seedlings are sprayed at 2-4 leaves, they are sprayed with 800 times solution of ethephon or sprayed with 1000 times of paclobutrazol; the greenhouse solanaceous vegetable seedlings can also be sprayed with 1000 times liquid of chlormequat, so as to prevent the internodes from being slender and the stems and leaves thin. The seedlings are thick, dark green leaves, thick leaves, and promote flower bud differentiation.
Fifth, pest prevention. High temperature season vegetable nursery susceptible virus disease, can take the following measures to prevent pests and diseases: 1, select anti-virus varieties; 2, the mustard, tomato seeds, available 10% trisodium phosphate 1000 times soaking for 10 minutes, and then rinse with water Or vaccinate tomatoes with attenuated vaccine; 3, use nylon net yarn to prevent scorpion; 4, use silver-gray membrane to avoid scorpion; 5, promptly eliminate scorpion.
Some traditional Chinese medicines are processed from insects. These kind of insects have high medicinal value, and we collect them when they are dead and use the medicinal way to process the whole body. They also plan an important role in traditional Chinese medicine area. Such as CICADAE PERIOSTRACUM and SCORPIO.
Chinese Medicinal Herbs Animal
Chinese Medicinal Herbs Animal,Periostracum Cicadae,Traditonal Chinese Medicine Scorpio,Chinese Medicine Galla Chinensis
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