Recently, continuous low-temperature and rainy weather in Dongyang City is extremely unfavorable to vegetable production. Many vegetable diseases are heavy, especially gray mold and sclerotia, and some of the fields are slow to grow due to waterlogging. In order to take advantage of the recent favorable weather and warmer temperatures, households should carry out field management and disease prevention of vegetables. (1) The open-season vegetables should focus on strengthening the drainage of the ditch, minimizing the accumulation of water in the field and preventing the waterlogging of crops. (b) greenhouse vegetables take the following measures: 1. Strengthen the scaffolding, add pillar support in the greenhouse, and strengthen the night duty to avoid the loss of the scaffolding. At the same time, it prevents the storms caused by the local strong convection weather caused by the cold and warm air flow from damaging the scaffold. Strengthen the shed support, cover the shed film, tighten the film line, and strengthen the watch on duty. 2, strengthen the insulation. When the temperature drops below 3-5 °C, three layers of film (greenhouse + middle shed + small shed) should be covered. When the temperature drops to 0°C or below, at night, straw or shade nets, non-woven fabrics and other heat-insulating materials shall be placed on the small arch shelters to prevent the temperature in the shed from falling to 0-2°C. 3, pay attention to disease prevention. In the current unfavorable weather conditions, the plants are weakening and are prone to disease. To use Suo Ke Ling's fumigant to prevent disease, foliar nutrient solution can also be sprayed to enhance plant resistance. 4. Strengthen drainage. Clearance of the ditch around the greenhouse, smooth drainage, reduce the groundwater level as much as possible and keep the soil dry inside the shed, and prevent the accumulation of water in the shed. 5, heat preservation seedlings. Seedlings in seedbeds are mainly kept in heat and disease-preventing, and can be prevented by fumigants. When the seedlings are crowded, the seedling spacing should be appropriately increased to prevent the seedlings from becoming leggy. To protect the seedling root system from low temperature and high humidity damage. Don't transplant when the weather is bad. After the weather is getting better, grab it and transplant it.
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