In greenhouse construction, when some construction is permanent in nature, such as pillars and so on. However, some products require from time to time we must re-laying, such as greenhouse film The products are often subject to the sun and rain, are susceptible to damage from special insulation, and through a lot of market research, the product's useful life is generally two to three years promotion insulation was, so to be changed frequently greenhouse film. Replacing the time to pay attention to some issues where these matters are introduced. Air humidity regulation: the greenhouse air humidity is too large, not only directly affect photosynthesis and the absorption of mineral nutrition of vegetables, but also conducive to spore germination and infection. Therefore, the need for ventilation insulation was to promote shed humid air with the outside air relative humidity exchange, can effectively reduce the relative humidity in the greenhouse. Industrial shed insulation was heated to the hotline, but also can reduce the relative humidity. Using drip irrigation technology, combined with mulching cultivation, reduce soil moisture evaporation, can greatly reduce the air humidity (about 20%). Industrial insulation was, Hubei insulation was widely St. agricultural machinery provided by Shouguang Canton St. Agricultural Machinery Co., Ltd .. 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!