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.

Features:

Compared to traditional greenhouses, the interconnected greenhouse structures and hoop houses offer a significant advantage in terms of usable space, boasting a much larger area than traditional greenhouses.

Management-wise, more unified than traditional greenhouses, operation is scientific, and time-saving.

Method:

Ventilation and Air Exchange. Ventilation is an effective method for reducing humidity. It should be done during high temperatures to avoid a drop in 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 essential measure to lower indoor air humidity.

Heating and Dehumidifying. This method meets the temperature requirements of vegetables while also reducing the relative air humidity. Once the plants have developed resistance, water the plants, 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 greenhouse surface and stop dew from falling onto the plants, thereby reducing the humidity in the air of the connected greenhouse.

Naturally hygroscopic. Straw, wheat straw, quicklime, and other materials can be spread between rows to absorb water vapor or mist, achieving the goal of reducing humidity.