1. Rotation is carried out in rotation with the solanaceous crops, preferably on paddy-upland rotation for 1 to 2 years. 2. Cultivate disease-free strong seedlings and increase plant disease resistance. With seedling-free seedlings, the former seedlings were not planted on land plots of the Solanaceae crop, and 50 percent of the carbendazim was sprayed on the seedbed 1000 times before sowing. It is best to use nutritious cups or nutritional bags for seedlings to reduce the risk of colonization. The day before transplanting, the seedlings should be sprayed with 100% methylthioammonium 1000 times to reduce the spread of diseases to Daejeon. 3. Planting garden soil to deepen the sun, in the past, the incidence of heavy plots, ammonium bicarbonate can be used for soil disinfection, the specific method: After the first wet dishes, per acre with 50 kg of ammonium bicarbonate evenly sprinkled in the soil surface, and then with the film Coverage, after 5 to 7 days, lift the film and set aside. In combination with site preparation, 50 to 100 kg of lime per acre is used for soil improvement and disinfection. 4. Strengthen field management. Irrigation should be diligently poured into small water to prevent flooding. Apply enough basic fertilizer to apply organic manure to fully decompose and balance topdressing nitrogen, phosphorus and potassium fertilizers. After the first fruit harvest, apply 0.2% potassium dihydrogen phosphate or other foliar fertilizer. And timely cultivating, soil cultivation, and promote root growth. 5. Diseased plants should be removed in a timely manner. The diseased plants should be brought out of the vegetable field and buried deep or burned. The soil around the diseased plants should be removed from the lime to prevent the disease from spreading. 6. Chemical control: At the beginning of the disease, use 72% of agricultural streptomycin sulfate 400 times, or agricultural resistance "401" 500 times, or 50 percent DT500 times and 14% ammonia solution 300 times Liquid, 0.3 to 0.5 liters of liquid per plant, every 10 days, continuous irrigated roots 3 to 4 times. Desktop Type Dental Milling Machine The chair side CAD / CAM repair system has obvious advantages in aesthetic effect, operation time, patient participation and operation convenience. Discussion: traditional repair method: after the model is transferred, it will be sent to the technician's room for processing and making the final prosthesis. About one week, the final prosthesis will be tried on, grinded and bonded. The prosthesis was made in the technician's room. The patients need to accept the aesthetic effect of the prosthesis passively without any sense of participation. The implant repair method of chair side CAD / CAM system: obtain computer three-dimensional model by blue light scanning method, design and make personalized abutment and all ceramic restoration on computer, dye, glaze and bond after trial wearing, the whole restoration is made by chair side, patients can directly participate in the restoration design, and feel more involved. Conclusion: in the implant area of the anterior teeth, compared with the traditional implant repair method, the chair side repair system can get more satisfactory results, which is worthy of clinical application and promotion. Dental Equipment For Lab,Dental Implant Milling Machine,Titanium Dental Milling Machine,Glass Ceramic Dental Milling Machine Shandong Carved Intelligent Technology Group Co.,Ltd , https://www.demetdent.com
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