The shed is the basis for the production of vegetable vegetables. With a strong shed, the vegetables in the shed can be sheltered from the wind and rain. However, with the increase of the service life, the aging degree of the shed is aggravated, and many sheds have collapsed after the wall, the column sinks or even breaks, which is not conducive to the normal growth of vegetables. At present, most of the sheds have entered the shed period, and the vegetable farmers are busy with the sheds in the clearing of the garden. It is recommended that the peasants should make a “physical examination†for the sheds during the period to prepare for the cultivation of fruits and vegetables.
Protect the shed wall
Most of the winter-heated vegetable greenhouses built in the northern region are earthen walls. Although the insulation is good, the structural strength is low, and improper maintenance is prone to collapse and affect the service life of the greenhouse.
For the newly built shed, it should be covered in time after the wall is built, especially when it is rainy in summer. If the wall is not properly protected, the soil on the wall is easily washed away by the rain, making the wall thin, even because the rain will The shed was all wet, causing the wall to collapse. At present, in order to prevent the wall from being washed away by rain, vegetable farmers often use measures to cover the film, non-woven fabric or use cement or brick to protect the wall. In order to save costs, some farmers use large old films to cover the walls, so that the rain will flow down and not soak the walls. However, the film ages quickly and is easily scratched. Even if the layers are covered, there is a possibility that the film may have a hole, and once the rainwater enters, the wall is not easily restored to dryness.
It is recommended that the vegetable grower choose the anti-aging film and put a layer of sunscreen material on the plastic film to reduce the exposure of sunlight. Usually pay attention to check whether the film is damaged, and repair it if it is damaged. After the shed wall is covered with non-woven fabric, in rainy weather, although the rain can wet the non-woven fabric, in the fine weather, the wall and non-woven fabric can be dried. The number of years of use of the nonwoven fabric is longer than that of a cover material such as a film. Some vegetable farmers use cement or brick to cover the wall on the back wall, so that it can be protected from rain and heat. It can be said that it is a better method, but because it is relatively labor-intensive and expensive, it is relatively applied. less.
Check column
At present, the higher the height of the greenhouse, the more than six meters of new large-scale pillars, the weight of the pillars and the weight of the insulation on the shed are also getting larger and larger, and it is easy to build a column to sink, thus affecting the performance of the greenhouse. The collapse of the shed column and the excessive weight of the shed cover are an external cause. The most important reason is that the backfilling soil in the shed is loose during the construction of the shed, and it is caused by downward settlement after being pressed.
When the shed is found, the vegetable grower can completely remove the soil from the base of the pillar, and then the two men hold the column and lift it up, so that the top of the column is in contact with the steel pipe accurately, and then immediately fill the bottom of the column and fill the brick. In order to prevent the column from sinking again, the soil around the column is finally backfilled. If this is the case, it is best to check if the bottom of the column is covered with bricks. If there is no brick immediately after the column is lifted, it can effectively prevent the column from sinking.
Inspection film
For old sheds, always check for leaks in the back slope. In places where water leakage has been found, it must be handled in time to repair damage and ensure that no water leaks into the wall.
After the vegetables are pulled out, most vegetable farmers will carry out high temperature shacks. In order to achieve the desired high temperature shack effect, the closed shed is the premise. Once the shed film is damaged, the shed effect will be greatly reduced. In recent times, many areas have suddenly dropped hail and heavy rainfall, and the shed film has been cut out. The vegetable growers can use the scotch tape or special shed film adhesive to repair the shed.
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