The latest construction standard and cost of vegetable greenhouse

Vegetable greenhouses generally use bamboo structure or steel structure skeleton, covered with a layer or multi-layer insulation plastic film, so as to form a greenhouse space, the outer film is very good to prevent the loss of carbon dioxide generated by the growth of internal vegetables, so that the shed has a good insulation effect, below Oh, let's take a look at the vegetable greenhouse construction standards and costs!

Construction standard of vegetable greenhouse

We should choose the right place to build vegetable greenhouses. We should build them in places where they are sheltered from the wind and sunny. The soil is fertile, the lighting and ventilation conditions are good, and there are no buildings around them. are the specific requirements for

1, site location conditions: greenhouse is a fixed facility with large investment, the application period is long, in order to facilitate management, should be concentrated construction.

2, lighting and ventilation conditions: the sun is the main light shed. Heat source, must choose the site with sufficient lighting conditions to build a shed.

3. Water level measurement: Different areas are suitable for different greenhouse construction modes, and areas with too shallow water level are not suitable for digging greenhouses.

4, soil measurement: the initial stage of the shed needs to measure the soil composition in advance, so as to facilitate the selection of varieties and formula fertilization in the later stage.

5, soil and water conditions: greenhouse vegetable cultivation, generally multi-crop three-dimensional planting, therefore, requires good soil and water conditions.

Vegetable greenhouse construction cost

1, 6 meters wide assembled steel frame greenhouse: this shed type has been implemented for many years, is mainly 22 mm in diameter, 1.2 mm thick galvanized thin-walled steel pipe for the greenhouse skeleton data steel shed type, shed width 6 meters, top height 2.2-2.5 meters, shoulder height 1.2 meters, soil day rate 80%, service life of more than 10 years, cost per square meter 10-30 yuan, each mu built this 7000-20000 yuan. Suitable for planting vegetables, flowers, etc., defects are small shed width, low operation management efficiency, weak winter heat preservation.

2, simple bamboo frame greenhouse: is a variety of commonly used, shed type general width 5-6 meters, top height 2-3.2 meters, side height 1-1.2 meters, arch spacing 1-1.1 meters. The advantages are low cost, easy to obtain materials, easy to build, cost about 3000 yuan per mu (even film), defects are that there are many columns in the greenhouse, high shading rate, inconvenient operation, short service life, poor wind resistance and snow performance. One of them is commonly known as "ground rolling dragon" type shed type, span width 4-6 meters, top height and shoulder up and down, using a film to the bottom cover way, more cost-saving than ordinary bamboo vegetable greenhouse, suitable for climbing crops cultivation, greenhouse watermelon cultivation is widely used.

3, steel and bamboo mixed greenhouse: shed structure and simple bamboo shed the same distance with steel pipes and bamboo poles do arch, with the advantages of saving steel, reducing cost, convenient operation, etc., has a certain application area; performance and cost between steel frame greenhouse and bamboo shed.

4, 8 meters wide progressive steel frame greenhouse: increased the height and width of the shed body, improved the height and width of the shed side ventilation window, increased the space inside the shed, improved the management efficiency and winter insulation, and improved the soil utilization rate. The shed is built of galvanized pipes with a diameter of 28-32 mm and a thickness of 1.5 mm; the top height is 3.2-3.5 meters, the shoulder height is 1.8 meters, and the shed body space is large, suitable for planting tall vine vegetables. However, the construction of this vegetable greenhouse has greatly improved, with a cost of about 20-45 yuan per square meter and a cost of 1.5- 30,000 yuan per mu, which is mainly suitable for agricultural demonstration parks and vegetable farmers with certain economic strength.

5, ordinary multi-story greenhouse and simple bamboo frame multi-story greenhouse: ordinary multi-story greenhouse structure similar to steel frame multi-story greenhouse, with large space, high soil utilization rate advantages, but the cost is reduced a lot, 50-100 yuan per square meter.

Vegetable greenhouse construction process

The vegetable greenhouse construction process is relatively simple and the technology is relatively fine. Vegetable greenhouse is the main way to supply vegetables in China. Therefore, the construction quality and design structure of vegetable greenhouse directly affect the yield and quality of vegetables in China.

Theme design: It is mainly to set the length, width and height of the vegetable greenhouse, and design and manufacture according to the planting area. Our country's ordinary greenhouse is about 120 square meters.

2, choose materials: vegetable greenhouse construction is divided into column type and steel frame type. The steel frame type adopts all steel frame welding production, only needs to carry on the construction reinforcement to the foundation. Column type vegetable greenhouses should be made of cement columns or bamboo. Steel frame greenhouses have a long service life, up to 25 years, column type vegetable greenhouses can be used for 3-5 years.

3, matrix construction: the use of pillar-type vegetable greenhouses to build weighing back wall, wall width is not less than 50 cm. And set up special ventilation openings.

4. Arch frame: The vegetable greenhouse with steel frame body does not need to be erected with arch frame, and the vegetable greenhouse with bamboo pole or column type shall be erected with arch frame. To use more than 2 cm diameter uniform bamboo pole erection, bamboo pole in the large end inserted in the back wall, and both ends fixed. Keep the arch consistent and the height balanced. and erect upright posts at the highest points of the arches for support.

5, plastic film laying: to choose a good transparent plastic film laying, with no drop film or purple Mo as the first choice. Deep plastic burial should be carried out on both sides of the greenhouse. The depth of burial shall not be less than 20 cm.