- 蔬菜大棚:
- 大棚建设
- 塑料大棚:
- 大棚造价
- 连栋大棚:
- 大棚搭建
The double-layer skeleton arch shed is composed of two large and small arch sheds inside and outside. The span of the outer arch shed is meters. The height of the shed is 3 meters. The length depends on the plot. Generally, it is meters-meters. The main frame is one inch. .Thick hot-dip galvanized pipe. One meter per level. The span of the inner arch shed is meters. The height of the shed is meters. The main frame is six points. Thick galvanized pipe. One meter per level. The outer arch shed is covered with imported film. Thickness wire. Inner shed Cover it with membrane silk. The arch shed built in this way can increase the temperature inside the shed by -1°C. If an insulation quilt is added, some warm-loving vegetables can survive the winter smoothly
It must be insulated, moisturized and ventilated. This requires wall skin It should be thick. In northern winter, the morning temperature should be above ℃. The maximum temperature should be below 3℃
The construction direction should conform to the main wind direction of the local cultivation season to facilitate ventilation. Ventilation should be done front and back to form convection. The vents should not be on one side. One side should be blank. And prepare materials to seal the vents when ventilation is not needed. Install window screens on the vents to prevent insects from entering
Reserve devices for hanging shade layers inside and outside the shed
Vegetable greenhouses suitable for the southeastern coastal areas of my country are generally It is a plastic greenhouse. There are many types of greenhouses. According to the frame material, it can be divided into bamboo greenhouses and steel pipe greenhouses. According to the number of greenhouses, it can be divided into single greenhouses and multi-span greenhouses. At present, most farmers build bamboo and wood greenhouses. It has a low cost. The cost per unit is - yuan. However, the strength is poor and the life span is short. It is only about a year. It also has shortcomings such as weak disaster resistance and inconvenient operation and management. Multi-span greenhouses are made of steel pipes and have high strength (long life span). years). It has strong disaster resistance (generally can withstand typhoons), the shed is tall, has good ventilation and lighting conditions, and has high land utilization. It is easy to operate and manage. However, the cost is high (more than 1 yuan per construction cost). Farmers and ordinary enterprises cannot afford it. Single-span steel pipe greenhouses not only have the advantages of multi-span greenhouses, but also cost much less. Yuan per square meter. Farmers can consider using this to replace bamboo greenhouses
Vegetable greenhouses should be built on high and dry terrain (low groundwater level) ). Drainage and irrigation are convenient. On plots with fertile soil, greenhouses are generally required to run north-south. The air exhaust outlets are located on the east and west sides. In this way, firstly, it is conducive to reducing the humidity in the greenhouse, and secondly, it reduces the need for cultivating crops on racks in the greenhouse. . Mutual shading between tall stalk crops allows them to receive even light. Third, it avoids ventilation (cooling) of the greenhouse in winter. During ventilation operations, the temperature drops too quickly and the intrusion of north wind. At the same time, the amount of air exchange is increased
Consider increasing the amount of ventilation and light transmission in the greenhouse under the premise of resisting wind and snow. And taking into account the improvement of land utilization and the suitable environment for the cultivation of various crops. Here, I would like to remind every customer that you do not just The price is cheap, the quality of steel pipes is divided into many types, and the wall thickness of steel pipes can also be thin or thick. When it comes time to build a shed, it is best to go to the actual company and factory to see it in person!
Telephone: Mr. Wang