The greenhouse film can be used to increase life.
The main reason for the cracking of the shelving material on the surface of the shelving material is that the shelving material such as bamboo poles, iron wire and aluminum wire are hard and pointed to poke the film. Therefore, use a smooth surface scaffolding material. Sharpen and sharpen bamboo poles and bamboo. Tie racks should be made of soft materials such as hemp ropes and string ropes.
Patchwork is too narrow film is composed of a number of narrow film splicing, in the stitching to increase the patchwork area, increase the bond strength. If the seam is too narrow, the bond strength is small, and the seam will be pulled when the force is applied.
After pressing the film on the cover of the film house with a lamination line, it should be pressed with a laminating line immediately. In general, every 1 to 2 scaffolds pull a laminating line, and the elasticity of the line should be moderate. At the same time, a simple windbreak is set up on the windward side. Otherwise, the thin and light film of the greenhouse can easily be blown under the strong winds of the winter and even be blown up by strong winds.
Damage to the film The repair film is easily damaged during use and storage, and temporary repair can be used during breakage. One is the water-supplemented method. Scrub the damaged area, cut a piece of film that is slightly larger than the damaged area, stick it on the hole after the water is dripped, drain the air between the two films, and press the level. The second is the paper-making method. The film is slightly damaged. The paper after the drowning is wetted and dampened at the damaged place. Generally, it can be used for about 10 days. The third is the paste method, using flour and water to make the paste, and then add the brown sugar equivalent to 1/3 of the weight of the flour. After heating it slightly, it can be used to make up the film.
When disused, the buried film must be protected from sun exposure, smoke, and roasted during collection. Otherwise, the service life of the film will be greatly shortened. Practice has proved that the best storage method for greenhouse films is digging and burying. After the production of greenhouses is completed, the removed membranes should be washed and dried first, stacked or rolled up, wrapped in old membranes, and then a pit should be selected where the dryness of the soil is moderate, and the wrapped membranes should be buried in the pits. Note that the upper layer of the film should be more than 30 cm from the ground. This method can prevent the film from shortening the service life due to its aging and brittleness.
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