In recent days, high temperature and high light intensity have led to the closure of some vegetable farmers. The use of greenhouses such as straw curtains, automatic roller blinds, and thermal insulation has been suspended. The frequency of use of greenhouse drip irrigation and electric sprayers has also been greatly reduced. However, the summer sun and rain have greatly accelerated the aging of various facilities, seriously affecting its service life. Remind the vegetable farmers to use the shed break to do the maintenance and moisture protection work of all kinds of greenhouse equipment, and prepare for the normal use of autumn and winter.
Shed cover
In the summer, the quilt coverings such as thermal insulation and straw curtains are often rolled up and covered on the roof. However, in the case of extreme weather, it is often the case that the cover is scratched by the wind or scraped off the roof, and is easily wetted by rain. Remind the vegetable grower that it must be stabilized when storing the shed cover. The cover can be fixed on both sides of the cover with a short rope and a soil bag. One end is attached to the film rope or skeleton on the tuyere, and the other end is on the other end. Attached to the soil bag, the soil bag is hung on the north side of the cover, or the soil bag is placed on the bottom of the north side of the cover to serve to compress and support the cover.
Whether it is straw or non-woven fabric, foamed polyethylene and other materials, the cover should be well protected from sun and water. In summer, the light is strong, and the insulation is mostly black or dark brown, which is easy to absorb heat. If the material is not covered with light, only the film is used for wrapping, the dark color is slowly released after being absorbed by heat, and the internal temperature can even rise above 70 °C, which obviously accelerates the aging speed. Sun protection can be covered with light oxford cloth or non-woven fabric. It is best not to cover it with black objects to avoid high temperature inside the cover and cause excessive aging. After sun protection, apply a film on the outermost side of the cover to ensure that the film has no holes and prevent moisture from entering the cover. Vegetable farmers should also pay attention to check every time after the rain and wind, especially after the strong wind, it is necessary to check the preservation of the insulation in time. Once the cover is blown off by the wind, the rainwater is soaked and insulated, it should be dried and re-covered in time. . In addition, it is necessary to pay attention to the prevention of rodent damage. Regularly check the two ends of the seal of the covering, and inspect the middle position several times. Once the bite is found, it should be dealt with immediately.
Rolling machine
In the rainy season, if the roller blind machine is still exposed, it will cause rust on the surface of the machine or the bare leak. Therefore, for the roller blind machine that is no longer used, it is best to disassemble the fuselage for cleaning work. Store in a cool, cool place. When storing, the machine should be placed more than 0.2 meters away from the ground, and covered with waterproof materials to prevent rust, bending and deformation, and then install before winter comes, which can extend the service life of the greenhouse roller blind machine. If you do not want to remove the roller blind, the roller blind should be wound up to the upper limit and sealed with plastic film. For the track of the track type roller blind machine, it is also necessary to protect the track. First, cover the inner layer with a new film, and then remove the old film without obvious cracks and damage on the outside, and then place it along the roller blind bracket. Packed one by one. During use, the anti-rust paint on the outer casing of the greenhouse roller is easy to be damaged and detached, the casing is easy to rust, and there is more rain in summer, so it is necessary to apply anti-rust paint in time to avoid rust.
The nose of the rolling machine is the core component of the complete set of roller blinds. In the summer, the waterproofing of the nose must be done. At present, the head of the rolling machine is various, and the position of the switch and the head are also greatly different when it is installed. It is recommended that the vegetable farmer should be waterproof for the switch near the machine head and the machine head. Once the machine head enters the water, it may cause internal rust and abnormal lubrication, which may cause the machine head to be unusable. Serious corrosion may cause an accident.
Drip irrigation
During the shed period, drip irrigation is not used for a long time. The vegetable farmers use water to wash them and put them in the shade. In general, the material used to make the drip irrigation belt should avoid high temperature and strong light, in order to achieve sufficient service life, while some vegetable farmers will put the drip irrigation with straw in the change of the shovel, some piled up in the corner of the shed, and some directly hang in the greenhouse wire Above, high temperature and strong light have a serious impact on the life of the drip irrigation belt. It is recommended that the vegetable grower should gently roll up the drip irrigation belt when not in use, and should not be pressed or dragged on the ground, and placed in a shade away from light.
Electric sprayer
In general, electric sprayers have a service life of more than 10 years. However, most of the chemicals are corrosive and easily damage the sprayer body, especially some rubber and plastic seals. Therefore, the remaining liquid should be poured out in time for the end of each operation, and the liquid medicine barrel, rubber hose, spray bar and other parts should be washed and stored in a cool dry place. Many vegetable farmers directly put the sprayer in the greenhouse for direct drying. Due to the high temperature and humidity in the greenhouse, the metal parts are prone to rust, and the plastic and rubber parts are aging quickly, which affects their service life and should be placed in a cool and ventilated place. For electric sprayers that rely on battery power, be sure to maintain the battery. When the vegetables are closed, the vegetable farmers often do not use sprayers for several months. It is necessary to pay attention to charge and discharge once every month, which can greatly extend the battery life.
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