After the current fall, more tomatoes have been sitting on 6 to 7 spikes. In order to promote fruit development, farmers have taken measures to top it out. After the topping of the tomato, management should pay attention to the following points. The first is to increase the brightness and promote fruit development. In case of frost and windy weather, cover floating membranes on top of covered grasshoppers. Generally around 7 o'clock in the morning after the sun came out, drafting was completed. Before 4 o'clock in the afternoon, the wind was kept warm and the grass was covered before 5 o'clock in the afternoon. Before the onset of the cold wave, hanging a light curtain on the back wall of the greenhouse to enhance the lighting in the shed. After the general topping of the tomato, the lower part of the fruit is in the period of enlargement or color change. By means of heat preservation and lighting, the daytime temperature is maintained at 28~30°C, and the night temperature is maintained at 15~17°C, which is conducive to the transport of photosynthetic products to tomato. Coloring is also good. The second is adequate supply of fertilizer and water to prevent premature aging of plants. As the temperature in the shed declines, it will affect tomato root water absorption and fertilizer absorption capacity. After topping the tomato, the nutrients needed for fruit growth and development increase. In order to avoid plant premature aging, the supply of fertilizer and water should be strengthened, and the functional fertilizer and water-soluble fertilizer in the conservation root system should be alternately flushed and sprayed with boron magnesium-zinc foliar fertilizer. Sodium nitrophenolate and other drugs, fertilizers. The third is to take various measures to prevent the occurrence of diseases. After topping the tomatoes, in addition to picking up the residual flowers, the prevention of diseases is indispensable. The emphasis is on the prevention of gray mold. It can be smoked at night with a mildew bactericide, or mist, dusting, etc. Ways to spray medicine control. The prevention of leaf mold and bacterial spot disease cannot be ignored either. For the control of leaf mold, polyoxins, difenoconazole, etc. are used to prevent and treat bacterial spot disease, copper citrate copper fertilizer, agricultural streptomycin sulfate, and eugenol are used. Dental Polishing Lathe Machine,Dental Centrifugal Casting Machine,Dental Lab Milling Machine,Dental Lab Milling Center Suzhou Escomedical Equipment Co.,Ltd , https://www.escodental.com