Features greenhouses: humidity conditions. Without ventilation, the shed up to 60-80% relative humidity during the day, at night often yin and greenhouse cost about 90% up to 100%. Shed suitable relative humidity varies depending on the type of crop, generally during the day and required to maintain 50-60% of yin and yang in the construction of greenhouses night at 80-90%. In order to reduce disease hazards yin and greenhouse construction company, nighttime humidity should be controlled at about 80%. Features greenhouses: humidity conditions. Due to the large greenhouse air temperature, soil evaporation is small, so in the winter cold season to reduce the amount of irrigation. However, the greenhouse temperature, ventilation when needed or excessive temperature, humidity would cause decline accelerated crop transpiration, causing water plants transpiration rate of decline, or cause physiological disorders. Therefore, according to the requirements of the crop must be shed, to maintain proper humidity. Yin and greenhouse construction company Shijiazhuang yin and greenhouses _ _ Communications Technology provided by Anyang City Communications Technology Limited. Anyang City Communications Technology Co., Ltd. (www.aytlkj.com) (www.aytlkj.com) strong, credible, in Anyang, Henan agricultural supplies industry has accumulated a large number of loyal customers. The company better work attitude and continuous improvement of innovative ideas and Communications Technology will lead you into the brilliant work together for a better future! You can also access (www.aytlkj.com/supply_details_42612020.html), for more information about the company.