Extend the lifespan of plastic greenhouses

First, the shed distance should be reasonable. The distance between the north and south sheds is not less than 1.5 meters to 2 meters, and the distance between the front and rear rows is not less than 3 meters to 3.5 meters. Second, ensure the quality of greenhouse production. Self-made simple tube shed should ensure the quality of the production, assembly should be carried out according to regulations, the longitudinal rod must use steel pipe, can not be replaced with fine bamboo or coarse wire, arch should be based on the shed width of the use of thicker black iron pipe. Third, fixed. The fixed lamination line should not use a single stake. It is better to pull a number 8 -10 rough wire or a fine wire rope with a diameter of about 6 mm on both sides of the greenhouse, in addition to opening the hole at both ends to tie the stone and tighten the rope. , On every 3m to 4m, bricks are also used as small anchors for fixing. If using stakes, coarse iron wire is used to join the stakes together and then fixed. Fourth, use anti-aging polyethylene or polyvinyl chloride film. In the strong wind area, the greenhouse membrane must be compacted with a lamination line. If cracks or holes occur in the film, repair it in time. When the polyvinyl chloride film ruptures, it can be repaired with cyclohexanone, and the repair film must also be polyvinyl chloride. Fifth, the film layering. Apply a special nylon lamination line or No. 10 to No. 12 iron wire, and the lamination line should be tied to a special thick wire or fine steel wire rope. Sixth, steel tube maintenance. Non-galvanized steel pipe should be painted once every two years to prevent rust. Greenhouses equipped with galvanized pipes should always inspect the fixtures in various places to prevent them from falling off. Seven, bamboo structure shed. It is generally 1.8 meters high and 2 meters high, 4 meters wide and 5 meters wide, and 20 meters to 30 meters long. The arches are made of two to three centimeters in diameter and 4 to 5 meters in length, and the bamboo rafts are bent into semi-circular ropes, and the distance between the arches cannot exceed 1 meter. Generally, the distance is 50 centimeters to 60 centimeters. In order to enhance the fastness, one or two pillars should sometimes be added in the middle of the shelter.

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