Tomato winter attention temperature control
First, temperature management. After entering the winter, greenhouse tomatoes should be managed with heat preservation and temperature increase. Low temperatures will cause tomatoes to fall and fall, and even freeze damage will occur. The fruit setting rate will be greatly reduced, which will seriously affect the production. Therefore, it is important to control the temperature in the sheds scientifically. The daytime temperature is kept at 23°C~28°C and nighttime at 15°C~18°C. The above temperature is the optimum temperature for tomato growth. In the event of heavy snowfall or high winds, the temperature can be increased by using coal stoves, heating, or artificial supplemental lighting. Second, light and ventilation. Tomatoes are hi-light crops. When the light is sufficient, the plants grow vigorously and have strong resistance to disease. On the contrary, it will cause the plant to grow in length and grow weakly. It will also create conditions for the infection of diseases. Can be used to hang a reflective screen on the back wall, regular cleaning of the dust or dirt on the film, remove the fog droplets within the film and other methods, do everything possible to increase the light in the shed. Ventilation can achieve the purpose of dehumidification, ventilation and temperature adjustment. Ventilation time should be adjusted according to the weather conditions, but a certain amount of ventilation time must be guaranteed every day, which is conducive to normal plant growth. Disposable Pen Injector,Injection Pen,Disposable Injection Pen,Pen Injector Shanghai Enjosim Medical Technology Co., Ltd , https://www.enjosimmedical.com