The yellow peony root is rooted in suitable conditions of temperature, humidity and darkness, relying on its own storage of nutrients to grow, in the absence of chlorophyll, produce a fat and delicious, excellent flavor, light yellow color, very little cellulose The tender texture of leeks. Ordinary leek varieties can produce glutinous yellow, sowing time from late March to early June, but also in the late autumn September to October sowing. The amount of seed per acre ranges from 1.5 kg to 2 kg. When the seedlings grow to 4 to 6 leaves, they can be transplanted. 1. The root strains were cultured with a healthy biennial root, and only 1 to 2 knives were harvested in open field, so that the roots accumulated more nutrients, which was beneficial to increase the yield of alfalfa. Replanted manure and urine should be re-applied when the barley is not harvested before being covered, and a small amount of urea is used as a base fertilizer to fertilize the roots; 2. The area covered by plastic sheds and awnings is usually 15 to 20 meters long. , 1.5 meters wide is appropriate, with 10 fine steel stents, each cut 2.4 meters long, curved into a round arch on the pole, both ends of the ground about 20 cm into the ground, every 50 centimeters, the vault away from the The face is 50 cm thick, and the arch is covered with black plastic film and fixed. The sun visor is inserted at both ends so that the air is blocked. Shade nets are also prepared to adjust the temperature. Before we cover the film, we must remove the dead leaf weeds and use a spade shovel to shovel the green part of the ground. After the wound has healed, it will be irrigated and covered for 2 to 3 days. 3. After the management of black film is different from other films, it has strong light absorption, rapid temperature increase and high temperature. Therefore, winter and spring coverage, pay attention to cooling, ventilation management. Cover the air vents at both ends of the initial enthalpy to prevent sunlight from entering the retort. In order to prevent high temperature and high humidity and avoid rot of the leaves, it is also necessary to bury a tile every 3 meters on both sides of the shed to strengthen ventilation and ventilation. The growth of the first yellow plant is in the cold season in winter, and the temperature in the greenhouse is low. The grass can be covered in the roof, and the cover in the morning can be removed to increase the temperature of the greenhouse. After the second day, the temperature gradually increased, and the temperature and humidity in the shed increased. The density of the drums on both sides should be increased. One was added in the middle of the original lining to extend the time for the air release at both ends. When the sunlight is strong at noon during the daytime, it can be covered with grasshoppers to cool down, so that the temperature inside the shed can be maintained at about 20°C, and the humidity can reach 60% to 70% to meet the needs of vigorous growth of yellow peony. The cultivation of black plastic sheds can shorten the growth period of yellow pods, and the number of harvests can be increased. For example, timely top dressing and watering during the harvest period to avoid premature degeneration of deferred plants can yield higher yields.
Medical protective clothing refers to the protective clothing used by medical personnel (doctors, nurses, public health personnel, cleaning personnel, etc.) and people entering specific medical and health areas (such as patients, hospital visitors, personnel entering infected areas, etc.). Its function is to isolate germs, harmful ultrafine dust, acid and alkaline solutions, electromagnetic radiation, etc., to ensure the safety of personnel and keep the environment clean.
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