What are the important roles of side windows in multi-span greenhouses?
When building multi-span greenhouses, a fan and water curtain ventilation and cooling system is usually installed at the end face. As for the side of the greenhouse, if it is a multi-span film greenhouse, it is generally reasonable to set up an electrically operated vent for ventilation. However, if it is a multi-span glass greenhouse, the two sides are usually completely closed without side windows, which is an unreasonable design.
This leads to the article I am going to write today. Side windows in multi-span greenhouses play an indispensable role, mainly reflected in the following aspects.
Firstly, it can effectively regulate the temperature inside the greenhouse. When the temperature is too high, the side windows can be opened to allow the hot air to be quickly expelled, thereby lowering the temperature inside the greenhouse and preventing the crops from being harmed by high temperatures, such as leaf burns and affecting flower bud differentiation. Secondly, the side windows are beneficial for ventilation and air exchange. During the growth of crops in the greenhouse, sufficient carbon dioxide is needed. By opening the side windows, fresh air from the outside can enter, ensuring an appropriate concentration of carbon dioxide and promoting photosynthesis. At the same time, it can also remove the harmful gases accumulated in the greenhouse, such as ammonia, creating a healthy environment for the growth of crops.
Furthermore, side-opening windows can regulate humidity. When the humidity is high, opening the side windows can reduce the humidity inside the greenhouse, decrease the possibility of pests and diseases breeding, such as reducing the occurrence of diseases like downy mildew and powdery mildew, and ensure the normal growth of crops.
In conclusion, side-opening windows in polyethylene greenhouses are very economical and practical. Whether building a single-story plastic greenhouse or a multi-story glass greenhouse, side-opening windows must be installed. Electric or manual sliding windows are both acceptable. Especially in spring and autumn, there is no need to constantly operate the ventilation and cooling system with fans and water curtains. Simply opening the side-opening windows will do, which is also more energy-efficient and environmentally friendly. Furthermore, the side-opening windows can also regulate the intensity of light to some extent, preventing excessive light from causing adverse effects on the crops and providing suitable light conditions for their growth.
