Every year, many vegetable farmers renovate the old vegetable sheds that have been planted for many years. However, the renovation of the old sheds will generally increase. Due to the restrictions of the plots, the distance from the adjacent sheds will be narrowed, which will bring various problems. In this regard, the following three points should be noted when constructing a greenhouse in the same place.

First, pay attention to drainage

After the renovation, the new shed is tall, and the distance between adjacent sheds will naturally be narrow. For example, the distance between some newly built sheds and the former sheds is less than 3 meters, so that the drainage ditch cannot be set up, and it is likely to flood the shed if there is more precipitation.

It is recommended to dig a drainage ditch in front of the shed. The width of the drainage ditch depends on the distance between the front face and the front shed, but it must be deeper than the ground in the shed. If there are deep ditches around the shed area, it is recommended that the drainage ditch be dug and connected to the surrounding ditch with a drain pipe. If the front of the shed is deep, you should also prepare a drainage pump such as a water pump to prevent the water from being discharged after the rainstorm.

Second, pay attention to the installation and use of the roller blind machine

Due to the small distance between the shed and the shed, the installation of the pole roller blind or the bridge roller blind is very crowded, such as the use of the pole roller blind machine, after the straw curtain is lowered, due to its small angle, the whole The struts may tilt south and are in a dangerous state. Therefore, when the old shed is rebuilt, it is recommended to install a light and short drum type roller blind machine when the shed spacing is not suitable for the installation of the pole roller shutter or the bridge roller blind.

Third, pay attention to the front face shading

In order to improve the insulation capacity of the shed, some vegetable farmers will dig deep into the shed to ensure the soil for the wall. As a result, the planting level in the shed is low, which is unfavorable for the growth of vegetables at the front face. In addition, it is closer to the neighboring shed, and the vegetables at the face before the deep winter season will be insufficiently illuminated.

It is recommended to keep the low front face after the shed is rebuilt, and try to avoid the front face shading. If the front shed is shaded, special care should be given to the vegetables, such as installing the fill light and the temperature supplement lamp in the first two rows of columns to improve the light temperature condition of the front face. In addition, the canal can be placed at the front face, which is also a good solution.

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