Strengthen management. 1) vegetable greenhouse production management process must strengthen the management of light, in favor of holding the premise covering mortgage as soon as possible, common light. 2). Adding carbon dioxide. Application of carbon dioxide fertilization, increased levels of carbon dioxide, but also help enhance the plant's resistance to cold. 3) It should be noted vegetable blight, gray mold incidence and spread. 1. For the timely replacement of damaged bamboo because bamboo thatch grass to bear the weight, in the face of heavy snow, bamboo will increase by gravity, causing part of the film prop split bamboo is pressed or crushed. 2. To the front of the roof surface and the insulation was the turning point of the agricultural, try rag mat, hoses, PVC pipe insulation and other protective tool shed dishes were, rope and plastic film laminated to avoid direct contact. 3. Replace the time to grasp the plastic film. Now farmers are more than a partner of the plastic film to be replaced, we will be ready to replace the bamboo supply insulation was, ready in advance, and then the new plastic film in front of the shed a good stretch, the new plastic film covering on top. 4. For those of poor quality plastic film, there are those old plastic film, in the winter when the insulation is, anti-fogging drip bad, prone to dew when leaked, causing the greenhouse air humidity, so that is very conducive to Diseases. Farm insulation was, Hainan insulation was widely St. agricultural machinery provided by Shouguang Agricultural Machinery Co. St. Canton. Shouguang City, Canton St. Agricultural Machinery Co., Ltd. (www.sdguangsheng.com) strong, credible, Weifang in Shandong agricultural machinery industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead the broad St. agricultural machinery and you hand into the brilliant, for a better future!