The history of a vegetable greenhouse construction, greenhouse building greenhouse production development history of our country is an old agricultural country, not only vegetable cultivation has a long history, and people long ago started to use natural resources, and environmental regulation. Greenhouse construction According to historical records, about 2,000 years ago, China had protected cultivation of vegetables, but the regulation was very backward technology and poor results. 2. Construction of greenhouse vegetable production in greenhouses utilized in the twentieth century from the 1930s. Our founder Mr. Wu Gengmin horticulture set Browse bridge in Hangzhou market gardening glass-covered wooden frame hotbed, creating a summer vegetable glass hotbed breeding techniques, later changed to a wooden frame for the wall. Greenhouse construction management on the one hand to pay attention to different ventilation camber, leaked mouth sizes, the size of the air spring can not be completely defined by a particular data because of the different structure of the greenhouse, cooling time and speed is different. Larger crown greenhouse, greenhouse construction because Roof camber suitable, hot air is easily discharged along the upper part of the greenhouse films, even if the leaked small mouth sunlight greenhouse construction, but also to achieve better leaked results. The planting years longer low old shed, because camber smaller greenhouses greenhouse construction manufacturers, construction of greenhouses greenhouse construction, shed surface is relatively flat, hot air from the shed leaked discharge port speed is slow, greenhouse construction on the greenhouse temperature high. Under normal circumstances, such greenhouses leaked mouth open top to 40 cm wide, only with a higher altitude, greenhouse construction. Same camber large greenhouses open to 30 centimeters of air leaked effect. Greenhouse construction on the other hand the spring should pay more attention graded airy studio one hour after morning and opened the greenhouse construction facilities, open the vent 3-5 cm put Small wind, the purpose is to shed moisture to escape, adding shed carbon dioxide. Professional greenhouse construction, greenhouse construction in Macau, Guang-sheng by Shouguang City Agricultural Machinery Co., Ltd. Guang-sheng. Professional greenhouse construction, greenhouse construction Macao, Guangzhou City, Canton St. St. Shouguang Agricultural Machinery Co., Ltd. (www.sdguangsheng.com) this year introduced a new upgrade, the above picture is for reference only, please call the contact or pictures on this page phone, for the latest information, contact: Mr. Wang.