How to use warm quilts in vegetable greenhouses to cope with weather changes? What problems should we pay attention to?

In fact, in the face of cold weather, we should be prepared in advance. For example, in the coming winter, we need to prepare this kind of insulation film and insulation pad in advance. In this way, when cold weather comes, we can solve this temperature problem more quickly. Because many vegetables grown in our vegetable greenhouses are actually vegetables that can't stand this frost. If they are exposed to cold weather, they may be frostbitten and freeze to death. How to use greenhouse insulation to cope with weather changes,

The south mainly has the following points. In winter, the opening time of ventilation side membrane in greenhouse is generally after 9: 10, and it can be opened when the temperature rises. Generally, it should not be opened too early, so as not to freeze the plants at low temperature. After four o'clock in the afternoon, this breathable film will be closed for heat preservation. Secondly, artificial auxiliary heating can be used. Thermal insulation quilt is a kind of greenhouse cover. Cold areas are generally covered with double layers. After the bottom layer is covered with shed film in turn, the upper layer is covered with half pressure.

In rainy weather or extremely cold areas, an old shed film can be covered. In early winter or late spring, only one layer of insulation quilt can be covered. Even only half of the insulation quilt is covered to adjust the temperature in the shed. In case of continuous rain and snow, we should still insist on uncovering the insulation quilt. However, when the weather suddenly clears up, half of the flower curtains should be placed around noon to form shading to prevent vegetables from "flashing seedlings" in the shed. After about a day or two, normal uncovering will be resumed.

Building a shed is very hard work. Need to monitor temperature, humidity and light in real time. Staying in the shed for a long time will reduce production if you are not careful. It is suggested that everyone can be equipped with a small device to monitor the temperature, humidity and illuminance in the greenhouse. This "shed doctor" developed by Yi Kai Internet of Things is cheap and convenient. It can be directly fixed in the greenhouse, and the monitoring data can be viewed remotely through the mobile phone without wiring. Very convenient. If the temperature and humidity in the shed are abnormal, the system will automatically give an alarm, and there is no worries. Solar charging can be said to be a necessary shed-watching artifact for shed friends.