In winter and spring season, greenhouses and other facilities have high atmospheric humidity. If they are not promptly discharged, they will inhibit the normal water transpiration of the crop, slow down the normal water circulation of the soil, and induce and aggravate the occurrence of pests and diseases. And can easily cause the plants to fall and fall. So, how to reduce the humidity in the greenhouse? Ventilation and ventilation This method is the most basic and effective method for reducing humidity in greenhouses and other facilities. In the greenhouse, air ventilation should be used as much as possible, especially during the noon hours, even when the weather is cold, the membrane should be properly ventilated. The mulching film covers greenhouse crops covered with plastic film, which can not only effectively increase the ground temperature, promote crop growth, but also reduce ground water evaporation and irrigation times, so as to achieve the purpose of heat preservation and dehumidification. The coverless drape canopy is covered with dripless membrane covering, which can greatly reduce the amount of water on the surface of the thin film, and facilitate light transmission and increase the temperature in the booth. Large amounts of humidity have been used in the application of base fertilizer facilities. If soil rehydration and fertilization are used, soil and air humidity will inevitably increase. Therefore, the greenhouse crop must be fully applied before planting, and water and topdressing should be minimized during the growth period. If the crop lacks fertilizer and water, conditions can be used for new methods such as drip irrigation and micro-irrigation. Artificial Hygroscopic If the moisture in the greenhouse is too large, sprinkle some grass ash or dry fine soil on the ground, and put some piles of lime in the shed to facilitate moisture absorption and reduce the humidity in the greenhouse.
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