Features greenhouses: the greenhouse air component. Because simple mulch of Greenhouse construction, greenhouse air flow and exchange restrictions, tall plants in the vegetable, leafy, the change in the concentration of carbon dioxide in the air shed very intense. Before sunrise the morning due to the release of crop and soil respiration simple multi-span greenhouse, shed carbon dioxide concentration is 2-3 times higher than that outside, (about 330PPM); 8-9 later when the cost of a simple multi-span greenhouses, with leaf photosynthesis Enhanced ease of Greenhouse construction company, can be reduced to below 100PPM. Features greenhouses: the greenhouse air component. In the low season, often confined greenhouse insulation, it is easy to accumulation of toxic gases, such as ammonia, nitrogen dioxide, sulfur dioxide, ethylene and other harm. When the ammonia reaches 5PPM greenhouse, the plants will produce water-soaked spots on the blade tip, and then black dead; when nitrogen dioxide reached 2.5-3PPM, the occurrence of irregular green and white leaf spots, in addition to serious vein, the whole Leaves are bleached. Easy to build multi-span greenhouse, Chengdu simple multi-span greenhouse, 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_42392215.html), for more information about the company.