Tomato winter warming light
After entering the winter, as the light time becomes shorter, the night temperature is lower, the humidity in the shed will gradually increase, and some low temperature and high humidity diseases are very likely to occur, which adversely affects the normal growth of tomato. Winter tomatoes should pay special attention to temperature and light control during management.
1. Temperature management. After entering the winter, the greenhouse tomato should be treated with heat preservation and temperature increase. The low temperature is likely to cause the tomato to fall into the fruit and even cause frost damage, and the fruit setting rate will be greatly reduced, thus seriously affecting the yield. Therefore, it is necessary to scientifically control the temperature in the shed. Generally, the daytime temperature is maintained at 23 °C ~ 28 °C, and at night 15 °C ~ 18 °C, the above temperature is the optimum temperature for tomato growth. In case of heavy snow or windy weather, you can use coal stove, heating or artificial light to warm up.
2. Light and ventilation. Tomato is a light-loving crop. When the light is sufficient, the plant grows vigorously and has strong disease resistance. On the contrary, it will cause the plants to grow and grow weak, and will also create conditions for the infection of the disease. It is possible to increase the light in the shed by using a method of hanging a reflective screen on the back wall, regularly cleaning dust or dirt on the shed film, and removing mist droplets in the shed film. Ventilation can achieve the purpose of moisture removal, ventilation and temperature regulation. Ventilation time should be adjusted according to the weather conditions, but a certain ventilation time must be guaranteed every day, which is conducive to the normal growth of plants.
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