RICTRON Industrial Co., Ltd is a hight-tech OEM/ODM enterprise, we are specialized to produce the products such as fire smoke alarm, carbon monoxiede alarm, gas alarm, water alarm, smoke&co or gas&co combined alarms, and other products of R&D, manufactring and sales since 2008. Combo Smoke Co Detector,Co And Smoke Detector Combo,2 In 1 Smoke And Carbon Monoxide Alarm,Combo Smoke And Carbon Monoxide Detector Rictron Industrial Co., Ltd , https://www.szrictron.com
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When to vent and vent moisture in the greenhouse in winter
Most of the greenhouse ventilation and dehumidification takes place in the early morning, noon and evening. When the haystack is uncovered on cloudy morning, if the temperature in the greenhouse is not less than 12 degrees Celsius, it can be ventilated for 30 minutes, then the air outlet can be quickly closed to increase the room temperature, and it can be discharged for 1 hour at 12 noon; if the humidity in the greenhouse is high, it is outside. When the temperature is higher than 2 degrees Celsius, the night wind can be released. In the evening, a film slit of 10 to 15 centimeters wide can be opened, the grass canopies can be put down, and then the waterproof paper can be covered. The humidity in the greenhouse is dispersed from the gap and inhaled grasshoppers. The next day After the sun came out, the paper was removed and the hay was dried up.