After pollination and fertilization (arma or use of ancillary agents), the fruit will enter its first rapid expansion, which is one of the key stages in determining the size of the fruit. If it is not carefully managed, it is very likely that There is a phenomenon of fruit drop, which in turn causes a reduction in production or quality. Therefore, in the management of greenhouse sweet cherry, the use of temperature and humidity recorder to monitor the temperature and humidity changes in the greenhouse during the sweet cherry expansion, the purpose is to create a good growth conditions for its growth and development, and promote its healthy growth through precise regulation. . In the greenhouse sweet cherry during the expansion period, when the daytime temperature can be maintained at 21 ~ 23 °C, the night temperature of 8 ~ 10 °C. The relative humidity is better than 30%, which is good for young fruit enlargement. Throughout the process, we can monitor with the help of temperature and humidity recorders, which can also liberate manpower to a certain extent and reduce the risk of greenhouse planting. Once the temperature and humidity exceed the required indicators, we can also discover the temperature through the temperature and humidity recorder. Changes in humidity, take effective measures to regulate temperature and humidity, for example, can be appropriate to spray water to increase greenhouse humidity. In addition, in the greenhouse sweet cherry expansion management, how to prevent the night temperature is too high, but also need to pay special attention to the thing, because the night temperature is too high, the new shoot growth is vigorous, will produce nutritious competition for young fruit. The past night is the time when managers are relatively relaxed about greenhouse management. Because this time is exactly the time of sleep, people will feel very tired and it is difficult to monitor the temperature and humidity changes in the greenhouse for 24 hours, but through the temperature and humidity recorder. , Can easily help manage the sharing of warm temperature and humidity in the field of supervision, for the control of temperature and humidity at room temperature, reduce the greenhouse risk of sweet cherry, and increase greenhouse production and quality, etc., have a very important significance. Therefore, it can be said that the application of the temperature and humidity recorder in the management of the greenhouse sweet cherry during the expansion period can effectively help the farmers to save time and labor, increase production and increase efficiency. Steam Superheater,Superheater In Boiler,Convection Superheater,Electric Steam Superheater Jinan Boiler Group Co., Ltd. , https://www.jinanboilergroup.com