The multi-span greenhouse is an upgraded version of a greenhouse, essentially a large greenhouse. It connects the original independent single-room greenhouses using scientific methods, rational design, and materials, transforming them into a continuous structure.

Features:

Compared to traditional greenhouses, the interconnected greenhouse structures and large sheds offer a significant advantage in space utilization, far exceeding the area of traditional greenhouses.

Management-wise, more unified than traditional greenhouses, scientifically operated, and time-saving.

Method:

Ventilation and Air Exchange. Ventilation is an effective method to reduce humidity. It should be done during high temperatures to avoid lowering the indoor temperature of the greenhouse. If the temperature drops too quickly during ventilation, promptly close the ventilation openings to prevent a sudden drop in temperature that could harm the vegetables.

Mulching. Using mulch can reduce soil moisture evaporation, an important measure to lower indoor humidity.

Heating and dehumidifying. This method not only meets the temperature requirements of vegetables but also reduces the relative humidity of the air. When the plants reach a resistant stage, water them, close the greenhouse, and heat to around 30℃ for about an hour, then ventilate to expel moisture. Repeat this process if the greenhouse temperature drops below 25℃ after 3-4 hours.

Utilize moisture-permeable and absorbent insulation curtain materials. These materials, such as non-woven fabric, prevent condensation on the interior surface of the greenhouse and stop dew from falling onto the plants, thereby reducing the air humidity inside the connected greenhouse.

Naturally absorbent. Straw, wheat chaff, quicklime, and other materials can be spread between rows to absorb moisture vapor or mist, achieving the purpose of reducing humidity.