Eggplant Verticillium wilt
Verticillium wilt is one of the main diseases of eggplant, and it is difficult to prevent and control. Verticillium wilt is more likely to develop after fruiting on the pod, and the number of diseased plants will increase sharply. In severe cases, the whole plant will die and the leaves will fall off, and the light bar will affect the eggplant yield. . To this end, prevention and control of verticillium wilt should be strengthened, and comprehensive prevention and treatment measures should be adopted, which mainly include agricultural control and supplemented by chemical control. The effect is better. API Powder is fully defined in ICH Q7A as any substance or mixture of substances intended for use in the manufacture of pharmaceutical products and, when used in pharmaceutical products, as an active ingredient of pharmaceutical products. Such substances have pharmacological activities or other direct effects in the diagnosis, treatment, symptom relief, management or prevention of disease, or can affect the function or structure of the body. The active ingredient of a medicine. Only when an API is processed into a pharmaceutical preparation can it become a medicine for clinical application. alprazolam api powder,pregabalin api powder,buy api powder,api ingredients Shaanxi YXchuang Biotechnology Co., Ltd , https://www.peptide-nootropic.com
First, use resistant varieties
Generally early-maturing and low-temperature resistant varieties have strong resistance to Verticillium wilt.
Second, rotation, grafting
Rotation of Verticillium wilt with non-solanum, such as onion and garlic, is very light. With Toruubam, Maofen 802 and other materials as the rootstock, the disease prevention effect is better.
Third, high temperature stuffy shed sterilization
During the summer leisure period of plastic greenhouses, continuous high-temperature weather was selected. After deep-turning the soil, water was poured through the evening and the 40% formaldehyde solution was sprayed the next morning. Specific usage: Each standard greenhouse (6 meters 30 meters) formaldehyde dosage of 1.5-2 kg, add 25 kg of water evenly spray, immediately after spraying cover film or greenhouse film, sealed 10-15 days, pay attention not to leak.
Fourth, strengthen field management
Eggplant is a thermophilic, heat-resistant, hi-fertility and fertilizer-tolerant vegetable. Therefore, we must do a good job of greenhouse insulation, scientific fertilization, adequate application of phosphate fertilizer and maturity of organic fertilizer at the seedling stage, increase the application of potash fertilizer during flowering, At the same time, carbon dioxide gas fertilizer was artificially added in the shed. After harvesting, the pepper seed was timely topdressed and sprayed with a 1.8% love lotion agent 4000-5000 times liquid, and a green leaf fertilizer with a green Fenwei No. 2 800-1000 times liquid to enhance the disease resistance of the plant.
Fifth, chemical control
One is liquid soaking. Before sowing, use 50% carbendazim wettable powder 500 times liquid soaking for 1-2 hours, then germination sowing. The second is the nursery bed application of soil control. After the seedbed is leveled, 5 grams of 50% carbendazim WP is used per square meter, and the fine soil is spread on the sorghum surface and then sown. The third is to prevent and cure roots. At the beginning of the disease, 86.2% of master copper wettable powder 1500-2000 times liquid, 50% carbendazim 500 times liquid, 75% zhimeiling wettable powder 500 times liquid can be used for irrigation. About 1 day irrigation, even irrigation 2-3 times. Severely ill strains should be removed in a timely manner.
According to its source, apis are divided into chemical synthetic drugs and natural chemical drugs.
Chemical synthetic drugs can be divided into inorganic synthetic drugs and organic synthetic drugs. Inorganic synthetic drugs are inorganic compounds (very few are elements), such as aluminum hydroxide and magnesium trisilicate for the treatment of gastric and duodenal ulcer, etc. Organic synthetic drugs are mainly made of basic organic chemical raw materials, through a series of organic chemical reactions and drugs (such as aspirin, chloramphenicol, caffeine, etc.).
Natural chemical drugs can also be divided into biochemical drugs and phytochemical drugs according to their sources. Antibiotics are generally produced by microbial fermentation and belong to the category of biochemistry. In recent years, a variety of semi-synthetic antibiotics are the combination of biosynthesis and chemical synthesis products. Among apis, organic synthetic drugs account for the largest proportion of variety, yield and output value, which is the main pillar of chemical pharmaceutical industry. The quality of the API determines the quality of the preparation, so its quality standards are very strict. All countries in the world have formulated strict national pharmacopoeia standards and quality control methods for the widely used APIS.
Specific API after processing -- pharmaceutical preparations
The term API is used mainly in relation to the finished product. Mainly raw materials obtained by chemical processing means, supply raw materials for the production of finished drugs. For example, cefpirome sulfate for injection is a drug, then cefpirome sulfate is an API