Tomato planting techniques: what should be prevented from growing tomatoes in summer?

What should be prevented from growing tomatoes in summer? Please introduce the following two situations to prevent tomato planting in summer: if the temperature of anti-falling flowers and fruits is too high in the daytime, more than 34 ℃, higher than 20 ℃ at night, or a continuous high temperature of 40 ℃ for 4 hours during the day, the style elongation is obviously higher than that of the anther cartridge, resulting in ovary atrophy, so that the female and stamens can not be pollinated and fertilized normally and drop flowers and fruits. Prevention and treatment: ① uses sunshade net to cover to reduce the temperature. ② adopts formula fertilization technology to prevent and control the use of nitrogen fertilizer, watering should be watered frequently with small water, avoid flooding and ensure the coordination of water and temperature. When ③ pollination is poor, auxin spray can be used, such as 2mai 4Mel D, etc., spray flowers or wipe flowers as required. It has become a common method for people to wipe flowers with 2mem4murD to prevent drug damage, but some vegetable farmers often suffer from drug damage due to poor concentration. The concentration ratio is: the temperature after planting is 15 ℃ ~ 20 ℃, the concentration is 10~15ppm. When the temperature rises, it can be reduced to 6~8ppm. When in use, prevent direct dipping on young branches or leaves, do not spray, such as a large amount of flowers in the field can be changed to anti-falling element 25~40ppm spray. Click to get more tomato planting techniques click to get more vegetable planting techniques