Adopting this method can not only meet the temperature needs of vegetables, but also reduce the relative humidity of the air. When the plant grows to be resistant, watering and closing the shed to raise the temperature to around 30 ℃ can last for 1 hour, and then ventilation and dehumidification can be carried out. After 3 to 4 hours, it can be repeated once when the greenhouse temperature is below 25 ℃. Thin film multi-span greenhouses belong to the upgraded existence of greenhouses, usually super large greenhouses. The original independent single room greenhouses are connected using scientific methods, reasonable design, and materials to connect the original independent single room mode greenhouses.
This type of plastic film can be used for the cultivation of flowers, vegetables, and seedlings in multi span greenhouses. The diversity of covering materials determines the applicability of these greenhouses. In addition to being suitable for units with different requirements, it is also suitable for different climatic regions.
