Multi-span greenhouse features and dehumidification methods

Multi-span greenhouse features and dehumidification methods

Multi-span greenhouse is an upgraded existence of greenhouse. Or understood as an extension.

Multi-span greenhouse features:

1. Utilized space Compared with traditional greenhouses, the utilization space of greenhouses and greenhouses in the form of continuous buildings is a bright spot, and the utilization area is much larger than that of traditional greenhouses.

2. Compared with the traditional greenhouse, the management is more unified, the operation is more scientific, the time is saved, and the efficiency is improved

Multi-span greenhouse dehumidification method:

1. Ventilation and dehumidification. Ventilation is a good way to reduce humidity. Ventilation must be carried out at high temperature, otherwise the indoor temperature of the multi-span greenhouse will drop. If the temperature drops too fast during ventilation, close the vents in time to prevent the vegetables from being harmed by the sudden drop in temperature.

2. Mulch cover. The use of plastic film mulching can reduce the evaporation of soil moisture and is an important measure to reduce indoor air humidity.

3. Warm up and dehumidify. This method can not only meet the temperature requirements of vegetables, but also reduce the relative humidity of the air. When the plants grow to be resistant, water the closed shed and heat up to about 30 ℃ for 1 hour, and then ventilate and dehumidify. After 3-4 hours, when the shed temperature is lower than 25 ℃, it can be repeated once.

4. Adopt the insulation curtain material with good hygroscopicity. Thermal insulation curtain materials with good moisture permeability and moisture absorption, such as non-woven fabrics, can prevent dew condensation on the inner surface of the shed and prevent dew from falling on the plants, thereby reducing the air humidity in the multi-span greenhouse.

5. Natural moisture absorption. It can use straw, wheat straw, quicklime and other materials to spread between the rows to absorb water vapor or fog to achieve the purpose of dehumidification.