What about the humidity in the greenhouse in winter?

Now the economic development of our country is getting better and better, and there are many modes of agricultural planting. Now the most popular is the greenhouse planting, greenhouse planting can achieve out-of-season cultivation, many vegetables can also be produced in winter. However, when growing vegetables in the greenhouse in winter, the growth of vegetables is often affected because of the excessive humidity in the greenhouse. So what should we do with the high humidity in the greenhouse in winter? Let's take a look at it with the editor.

1. Rational watering

When planting in the greenhouse in winter, it is necessary to do a good job of watering, and be careful not to water too much. When the soil water content is sufficient, it is best to postpone the watering time. If the soil is too dry, it should also be watered at the end of cloudy and sunny mornings. If it is continuously cloudy, it is best not to water it, and not to water it in the afternoon. It is easy to lead to a decrease in ground temperature, resulting in an increase in humidity. In addition, we should also choose appropriate watering methods, mainly drip irrigation, not flood irrigation, otherwise the humidity is also very easy to rise.

2. Ventilation management

Although it is necessary to do a good job of heat preservation in winter, it is also necessary to strengthen ventilation management to stabilize the humidity in the greenhouse. To prevent excessive humidity in the greenhouse. When the temperature condition is suitable, the ventilation should mainly be early ventilation, or delay the time of closing the vent as far as possible to prolong the ventilation time. Reasonable ventilation can effectively reduce the humidity in the shed. Therefore, even in cloudy days, lack of natural light, noon should also be reasonably ventilated. However, it should be noted that if the temperature is high at noon on a sunny day, the low wind is impassable, which can easily lead to seedling fumigation.

3. Covering plastic film

Plastic film mulching is an indispensable work for growing vegetables in greenhouse when overwintering. Covering plastic film can not only achieve the purpose of heat preservation, but also reduce the humidity in the greenhouse and ensure that the seedlings can survive the winter safely. Then we should also put an appropriate amount of grain straw and other substances in the work line. To avoid the rapid evaporation of surface soil, at the same time, straw can also play the role of moisture absorption, which can also reduce the humidity in the greenhouse and prevent seedlings from affecting their growth because of excessive humidity.

4. Raise the temperature

Increasing the temperature in the greenhouse is one of the most effective ways to reduce humidity. After professional time, it is found that when the temperature in the greenhouse increases by one degree, the humidity can be reduced by about 3%. In winter, because of the shortening of the natural light time, we should pay attention to often clean the ash layer on the greenhouse film to improve the light intensity. Then every morning and evening should pay attention to uncover the cover, improve the lighting time. Then we can increase the light intensity and time in the greenhouse by increasing the reflective screen, so as to increase the temperature and reduce the humidity.

The above is a brief introduction to how to do the humidity in the greenhouse in winter. That's all for today's introduction. This article is for reference only. I hope it can help you all.