(1) Choose the nursery where the terrain is high and cool, easy to ventilate and ventilate, in order to control the humidity of the seedbed. (2) Soil disinfection: Carbendazim can prevent and treat a variety of fungal diseases, and has a good prevention and control effect against Ascomycetes and Deuteromycete. Soil disinfection with 50% wettable powder, mixing 1.5 grams per square meter, can prevent root rot, stalk rot, leaf blight, gray spot disease, etc., can also be formulated as 1:20 ratio of toxic soil Sprinkle on seedbeds, can effectively prevent seedling disease. (3) Seed disinfection: Soaking in hot water and seeding with 0.3% seed weight of carbendazim or seed dressing after dressing. (4) Strengthen seedbed management: After sowing, keep seedbed temperature above 25 degrees Celsius and ground temperature above 16 degrees Celsius to prevent ground temperature from being low for a long time; strengthen seedbed light to prevent crowding between seedlings, causing hypocotyls to grow too fast and over tender. Enhance the disease resistance; After the watering, the seedbed surface is evenly covered with a layer of dry fine nursery soil to absorb the excess moisture on the bed surface and reduce the surface humidity. (5) Chemical control: Close the seedbed before the onset of disease, smoke or kill with chlorine bleach or use chlorothalonil dust spray evenly on the bed to prevent disease. At the early stage of the disease, metalaxyl, precore, aluminum phosphonium, antivirus, and other agents were sprayed and sprayed. The spray was focused on the base of the shoot. Potassium permanganate 1000 times can also be used with irrigation. Objective To evaluate the methods and the effects of an Airway Management nursing team in clinical practice Airway Devices,Laryngeal Mask Airways,Extraglottic Airway Devices,Supraglottic Airway Devices Zhejiang Haisheng Medical Device Co., Ltd , https://www.hisernmedical.com