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一、改变温度 根据大棚中湿度变化的特点,如需增减相对湿度时,可在不影响温度要求的前提下,适当改变棚中的温度,从而达到改变湿度的目的。方法是:棚内湿度为100％,棚温为5℃时,每提高1℃气温,湿度降约5％;在5～10℃时,每提高1℃时,湿度则降3％～4％,提高20℃时,湿度为70％。温度30℃时,湿度为40％。相反,如果温度下降到18℃时,相对湿度则可升到85％;温度下降
First, change the temperature According to the characteristics of the humidity in the greenhouse, if you need to increase or decrease the relative humidity, can not affect the temperature requirements under the premise of appropriate changes in shed temperature, so as to achieve the purpose of changing the humidity. The method is as follows: when the humidity in the shed is 100% and the shed temperature is 5 ° C, the humidity is decreased by about 5% for every 1 ° C temperature increase; when the temperature is increased by 1 ° C, the humidity is reduced by 3% to 4% , Increase 20 ℃, the humidity is 70%. When the temperature is 30 ℃, the humidity is 40%. Conversely, if the temperature drops to 18 ° C, the relative humidity can rise to 85%; the temperature drops