1. Ventilation and Dehumidification: Ventilation is an effective way to reduce humidity. Ventilation should be done at high temperatures; otherwise, it will cause a drop in indoor temperature. If the temperature drops too quickly during Greenhouse ventilation, close the vents promptly to prevent a sudden drop in temperature from harming the vegetables.
2. Reasonable Watering: Watering is a major factor leading to increased indoor humidity. In winter and spring production, choose sunny days for furrow irrigation or watering by dividing the plants. For mulched greenhouses, use drip irrigation under the film. Strictly control the amount of water used for Greenhouse irrigation to prevent excessive indoor humidity. After each watering, ventilate appropriately and loosen the soil promptly to reduce both soil and air humidity.
3. Mulching: Mulching reduces soil moisture evaporation, a crucial measure for lowering indoor air humidity. The mulch prevents water evaporation, thus preventing a significant increase in humidity after watering.
4. Heating and Dehumidifying: This method for Polycarbonate Greenhouse satisfies the plants' temperature requirements while reducing relative humidity. 5. When the plants have grown to a resistant level, water, close the greenhouse to raise the temperature to around 30℃ for 1 hour, then ventilate to remove moisture. Repeat this process once the humidity drops below 25℃ after 3-4 hours.
6. Use highly absorbent insulation materials: Insulation materials with good moisture permeability and absorption, such as non-woven fabric, can prevent condensation on the inner surface and prevent dew from falling onto the plants, thus reducing air humidity and crop moisture.
7. Natural moisture absorption: Polycarbonate Greenhouse can utilize materials such as straw and quicklime laid between rows to absorb water vapor or mist, achieving dehumidification.
8. Increase light transmittance: Increasing light transmittance can raise the greenhouse temperature. After the temperature rises, frequent ventilation can help reduce humidity.