After watering, the greenhouse should be defogged

Everyone knows that watering in winter can cause a dramatic drop in the temperature of the greenhouse. Therefore, after watering, you should try your best to raise the temperature of the greenhouse as soon as possible so that the normal growth of vegetables can be promoted. But when reporters went to the countryside recently, they discovered that some vegetable farmers attach great importance to the warming work after watering, but due to improper methods, the greenhouse temperature can not be brought up after watering, causing the vegetables to be watered. Can not grow normally for a long time.
So, what factors will influence the speed of warming after watering? After a thorough understanding, the reporter found that after the watering, there was too much fog in the shed and there were too many dewdrops on the shed. However, the vegetable growers only paid attention to the temperature in the closed shed after watering, but they did not pay attention to evacuation and dehydration. This was an important reason for the slow temperature. Why do you say that? Because the fog in the shed and the dew on the shed blocked and weakened the sunlight, the sunlight was weak and the temperature in the shed was naturally slow. Therefore, in order to quickly raise the temperature of the greenhouse after watering the vegetables, measures must be taken to eliminate fog and dew in the greenhouse.
Under normal circumstances, the moisture in the shed cannot be excluded within a short period of time only after the water is discharged. The right approach is to combine warming and dehumidification. After the vegetables are watered, they should first close the greenhouse to raise the temperature. The temperature increase is an important measure for reducing humidity. When fog occurs in the shed, the air outlet is pulled open for a short time. Then close the shed to raise the temperature, and then release the fog for a short time. After repeating this several times, when there is no more fog in the shed, the tuyere can be closed for a longer period of time. At this time, the temperature of the greenhouse can be increased to 2-3°C in order to promote temperature rise as soon as possible.
At the same time, it is necessary to do a good job of removing the shed film before raising the temperature. Jie Meili and bean flour can be sprayed on the shed to eliminate dew from the shed as soon as possible to increase the transparency of the shed film. In addition, the dewdrops in the small arch shed on the planting line must also be shot in time to facilitate the injection of sunlight and increase the ground temperature as soon as possible.

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