What should we pay attention to in the usual maintenance of greenhouse film?

Release time:2023-12-19 Number of views: 83

Most of the crops planted in the greenhouse, so the light temperature of the greenhouse film is very important, so usually to maintain the greenhouse film, then the greenhouse film in the maintenance should pay attention to a few points?

One is to prevent breakage.

The materials used to build greenhouses are mostly iron wire, aluminum wire and so on. These hard, sharp materials tend to puncture the film. Therefore, the material of the shelf must be smooth, and the rod tip and bamboo joint must be shaved and polished. Tie frame should use soft materials such as twine, do not use hard materials such as iron wire and aluminum wire.

The second is to prevent off seam.

The greenhouse film is composed of a number of narrow film splicing, if the joint is too narrow, the bonding area is small, and the pulling force will cause the break. Therefore, in the joint to increase the bonding area, improve the bonding strength, to avoid the use of crack.

Third, the wind blows.

The thin and light greenhouse film is easy to be blown under the attack of winter winds, so after the film is covered, it should be pressed with the film line immediately. Generally every 1-2 trellises pull a film line, and the tightness of the line should be moderate. In areas with frequent high winds, simple wind barriers can be set up on the windward side to reduce wind damage.

Fourth, anti-aging.

After the end of the production of greenhouses, the film should be washed, cooled, rolled, and placed in a ventilated, dry, and dark place, so that aging can be delayed and service life can be extended. In addition, during the collection, special care should be taken not to allow the film to be exposed to the sun, smoke and fire.

Fifth, repair frequently.

Agricultural film should be repaired immediately if it is damaged during use. Repair methods are (1) water repair: scrub the damaged area clean, cut a piece of non-broken film that is slightly larger than the damaged place, dip in water and stick to the hole, drain the air between the two films, and press flat. (2) Glue: wash all sides of the hole, apply with a brush dipped in special glue, after 3 to 5 minutes, take a film of the same texture and stick on it, the glue can be affixed after dry. (3) Hot repair: wash the damaged area, cover the hole with a slightly larger film, and then cover 2 to 3 layers of newspaper, gently iron along the interface, the two films are heated and melted, and will stick together after cooling.

Six is to remove water droplets.

During the cultivation of vegetables, due to the large temperature difference between inside and outside the shed, a layer of water droplets is often attached to the inside of the ordinary film covered. Even if the film is drip-free, water droplets will appear over a certain period of use. These water droplets seriously affect the light transmittance of the shed film, reduce the temperature in the shed, and easily cause disease when the water droplets drop on the crops. Water droplets can be removed by (1) purchase special water droplets remover. (2) Pay attention to daily exhaust ventilation.