The temperature inside the glass greenhouse changes in response to the relativity of the temperature outside the glass greenhouse. The general trend of change is that the higher the temperature outside the glass greenhouse, the greater the temperature increase in the glass greenhouse; the outside temperature of the glass greenhouse decreases, and the value inside the glass greenhouse rises. Not big; the display time of the maximum and minimum temperatures in the glass greenhouse is about 2 hours later than the outside of the glass greenhouse. The daily temperature difference is very large on a sunny day, and the daily temperature difference on a rainy day is small; the higher the temperature, the greater the daily temperature difference; the lower the temperature, the smaller the daily temperature difference. According to the temperature change trend of the glass greenhouse and the suitable growth and development temperature requirements of mature vegetable types, improve the temperature maintenance and management aspects of the glass greenhouse. After the seedlings are transplanted, natural ventilation is generally not used before the slow seedlings, in order to develop a soft domestic temperature in the glass greenhouse. In early spring, due to the weak sunlight, the actual effect of increasing temperature in the glass greenhouse is weak. A large glass greenhouse can be used to cover agricultural mulch and a small plastic greenhouse to develop the actual effect of temperature increase and heat insulation, and promote the rapid return of green to the survival and growth of seedlings. .
