Glass greenhouses are a type of facility agriculture with a long service life. However, in the process of growing crops in glass greenhouses, the key challenge lies in controlling humidity. How to regulate the indoor humidity and reduce the occurrence of pests and diseases is crucial. Today, we will share several dehumidification solutions for glass greenhouses.

One, cleverly utilize top-hinged windows for regular ventilation and air exchange

The glass greenhouse roofs are equipped with interlaced natural ventilation openings, positioned at the peak of the roof but at a higher side point. The size of the glass roof vent is 2 meters by 1 meter, while the polycarbonate roof vent measures 4 meters by 1 meter. Proper ventilation at the right time is an effective way to reduce humidity.

Increase light transmission.

By opening the exterior shading system and interior shading system of the glass greenhouse, we can enhance the indoor lighting. Increasing the amount of light can raise the room temperature, which is essential before normal ventilation and air exchange can take place.

Heating and Humidity Control

This method meets the temperature requirements for vegetables while also reducing the relative air humidity. Once the plants have developed resistance, water the greenhouse and raise the temperature to around 30°C for an hour, then ventilate to expel moisture. Repeat this process three to four hours later when the greenhouse humidity drops below 25°C.

Four: Proper watering to reduce humidity sources

Moisture is the primary factor causing increased humidity in glass greenhouses. During winter and spring production, sunny furrow irrigation or individual plant watering can be chosen. For those using mulch, sub-mulch drip irrigation is recommended. It is essential to control the amount of water carefully, and after each watering, allow for proper ventilation. Timely weeding and soil loosening can reduce both soil and air humidity.

Five: Film Covering

Using mulch covers can reduce soil moisture evaporation, which is an essential measure to lower the humidity inside glass greenhouses.

Section VI: Selecting Appropriate Insulation Screen Materials

Highly breathable and moisture-absorbent thermal curtain materials, such as non-woven fabric, can prevent condensation on the inner surface and stop dew from falling onto the plants, thereby reducing air humidity.