How to Solve Dripping Water in Vegetable Greenhouses in Winter? A Detailed Guide to Practical Methods
When cultivating crops in winter, greenhouse cultivation is often chosen, but because of the large temperature difference between inside and outside the greenhouse, the humidity inside the greenhouse is high, and water droplets inevitably form on the inner side of the greenhouse film. The harm caused by dripping from the greenhouse film is also enormous. Let's take a look below at the harm of dripping in winter greenhouses and the solutions.
I. Harm of Greenhouse Dripping
1. Decreased light transmittance
Dripping from the greenhouse film will reduce light transmittance by at least 20%-30%, and it will also absorb a large amount of heat inside the greenhouse, affecting the increase in greenhouse temperature. In deep winter, light and temperature are already low to begin with, and dripping from the greenhouse film will reduce the light transmittance of the film, making the light inside the greenhouse even weaker, seriously affecting crop photosynthesis, and temperature will also be affected, causing great harm.
2. Causing cold damage
When water droplets on the greenhouse film splash onto the plants, cold damage is often caused because the water droplet temperature is too low, affecting the normal growth of vegetables.
3. Inducing diseases
The long-term presence of dew will induce many kinds of diseases, especially outbreaks and epidemics of bacterial and oomycete diseases, which require the presence of liquid water and wounds. Dripping happens to create these two conditions. Dripping inside the greenhouse or increasing the humidity inside the greenhouse is conducive to the occurrence of most fungi. Especially on cloudy and rainy days, when the temperature inside the greenhouse is low and the humidity is high, diseases occur severely.
II. Solutions
To solve the problem of dripping from the greenhouse film, multiple aspects such as the greenhouse structure and the quality of the greenhouse film should be considered. When building a new greenhouse, pay attention to improving the greenhouse body structure and increasing the greenhouse surface slope. Choose high-quality anti-drip film. When newly installing the greenhouse film, pull the film tight so that the greenhouse film is flat, which can also reduce dripping from the greenhouse film. You can also spray anti-drip agents on the inner side of the film, such as silicone adjuvants, to improve the surface extensibility of the greenhouse film and avoid the formation of water droplets.
The above is an introduction to how to solve dripping water in winter vegetable greenhouses. We hope it can help you. If you want to learn more related knowledge, please stay tuned to us.