Blast disease from the seed germination to seedling emergence before soiling, easy to cause bad species, bad buds; seedlings unearthed, the incidence of young stems near the ground, diseased organizations were light brown water stains, softening, contracture, The seedlings were folded, but the folded seedlings were still green in the short term. When the temperature was high, the diseased part had white cottony molds. Seedlings are most susceptible to disease before and after the appearance of the first true leaf. The pathogenic bacteria spread along with the irrigation flow, and can also be spread by the bed soil, seeds, agricultural implements, etc., which are easily infected by high humidity and low temperature in the seedbed.
Prevention:
1. Use early-maturing or low-temperature resistant varieties to do seed disinfection. Before sowing, soaking in warm water at 55°C for 10 minutes or soaking in 10% trisodium phosphate for 20 minutes, and then using 0.3%-0.5% 50% carbendazim WP to control damping off.
2. Strengthen the management of seedbeds to see if the seedlings release moderate amounts of air at proper times to avoid the occurrence of low-temperature and high-humidity conditions. Do not raise the seedlings in the greenhouse to water in rainy days.
3. Spraying 0.1%-0.2% potassium dihydrogen phosphate, 0.05%-0.1% calcium chloride during seedling period to improve disease resistance.
4. bed soil disinfection. For each square meter of nursery bed, 9-10 grams of pentachloronitrobenzene can be used, and 4-4.5 kilograms of fine soil can be mixed well. Before sowing, the bottom water can be soaked. In the above, sow the seeds of the buds to sow, and then cover the remaining 2/3 of the medicinal soil so that the seeds will be caught in the middle of the medicinal soil.
5. After the emergence of the seedlings, the diseased seedlings shall be removed timely in the early stage of disease, and 72.2% Preclosure 400 times solution, 96% Hymexazin powder 3000 times solution or 64% antiviral 400-500 times solution may be sprayed. According to the condition, it is administered once every 7-10 days, and it is controlled 2-3 times continuously. The spraying of medicaments should be carried out at noon on a sunny day. Do not spray too much liquid so as to avoid high humidity, but cause diseases.
Hospital Chair is Hospital Equipment(Operating Table For Medical), which is used for hospital and Hospital Chair For Patient. Its unique structural design is helpful for the requirements of various angles and orientations of the body in the process of beauty and body care, and it is convenient for beauticians to perform corresponding operations.
structure and material(Orthopedic Operating Tables)
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