sawtooth greenhouse with window
- Jianda greenhouse
- Qingzhou,China
- 10000 sqm,10days
Multi span greenhouses with Windows are better ventilated than other greenhouses, and the air circulates and flows, increasing the yield and quality of vegetables
sawtooth greenhouse
A sawtooth greenhouse is a greenhouse with windows ventilation system at the top that look like sawtooths, usually a multi span greenhouse.
Greenhouse Cooling Methods
1. Ventilation and dehumidification. Ventilation is a good way to reduce humidity. Ventilation must be carried out when the temperature is high, otherwise it will cause the indoor temperature of the multi-span greenhouse to drop. If the temperature drops too quickly during ventilation, close the vents in time to prevent the sudden drop in temperature from harming the vegetables.
2. Mulch covering. Covering with plastic film can reduce the evaporation of soil moisture and is an important measure to reduce indoor air humidity.
3. Raise temperature and lower humidity. This method can not only meet the temperature needs of vegetables, but also reduce the relative humidity of the air. When the plants grow to be resistant, water the closed shed to raise the temperature to about 30°C for 1 hour, and then ventilate and drain the moisture. It can be repeated once after 3-4 hours when the shed temperature is lower than 25℃.
4. Use thermal insulation curtain materials with good hygroscopicity. Insulation curtain materials with good moisture permeability and moisture absorption, such as non-woven fabrics, can prevent dew condensation on the surface of the greenhouse and prevent dew from falling on the plants, thereby reducing the air humidity of the multi-span greenhouse.
5. Natural moisture absorption. Materials such as straw, wheat straw, and quicklime can be used to spread between rows to absorb water vapor or fog to achieve the purpose of dehumidification.
