Basic Info.
Department
Plastic Greenhouse
Suitable
Vegetables, Seedling Cultivation, Overwintering of Poultry and Livestock, Mixed Farming, Herbal Medicine, Fruit, Flower, Aquaculture, Forage Planting
Roofing Shape
Arched Roof
Heating Method
Temporary Heating
Cultivation Method
Hydroponics
Building Materials
Steel-Plastic
Usage
Commercial Greenhouse
Transport Package
Customized Packaging of Each Accessory
Product Description
Vertex Agriculture specializes in the manufacture of modern greenhouse| Plastic film greenhouse is a greenhouse covered with plastic film. It is mainly composed of a skeleton and plastic film. The skeleton is generally constructed of hot-dip galvanized steel pipe, which plays a supporting role and can withstand the weight of the film and the pressure exerted by the external environment (such as wind, snow, etc.). Its shape is common single-slope greenhouse, double-slope greenhouse and so on. The roof of the double-slope greenhouse has two sloping surfaces, similar to the chevron roof of a house, which facilitates drainage and lighting. |
Product Description
Skeleton material:
Commonly used are hot-dip galvanized steel pipes, which have good strength and corrosion resistance. It can withstand the weight of the film and a certain amount of snow pressure. The specifications of the steel pipe vary according to the size and design requirements of the greenhouse, generally small greenhouses may use steel pipes with a diameter of 20-30 mm, and large greenhouses may use steel pipes with a larger diameter.
Plastic film:
In addition to the previously mentioned polyethylene (PE), polyvinyl chloride (PVC) and ethylene-vinyl acetate copolymer (EVA) films, there are some functional films. For example, diffuse reflective film, which can make the sunlight more evenly distributed in the greenhouse, to avoid local light is too strong. There are also anti-fogging films, which prevent the formation of water droplets on the inner surface of the greenhouse, because the water droplets affect the light transmission and can drop on the plants, causing disease.
Other accessories:
The slot and the spring are used to fix the plastic film. The slot is generally made of aluminum alloy, and the spring is made of spring steel wire. They cooperate with each other to fix the film tightly on the skeleton.
Film winder is a device used to roll and drop film for easy ventilation operation. Manual film winders are simple to operate, but electric film winders may be used in large greenhouses to improve work efficiency.
Product characteristics
Insulation performance:
The thermal insulation performance of the film greenhouse is relatively weak, and the heat loss rate is faster than that of the glass greenhouse and the PC board greenhouse. However, through reasonable design and taking some insulation measures, such as increasing insulation quilt, setting double layer film, etc., can effectively improve the insulation effect. The double-layer film greenhouse is covered with a film on the basis of the original film, and an air sandwich is formed in the middle, and the heat insulation performance of the air can slow down the heat transfer. | Light transmission performance:
Its light transmission performance mainly depends on the quality and use time of the plastic film. The initial transmittance of high-quality film can reach more than 85%-90%, but with the use of film aging, surface pollution and other factors will cause the transmittance to decline. For example, ultraviolet radiation will break the molecular chain of the film, make the film brittle, yellow, and reduce the transmittance | Ventilation performance:
Ventilation is an important means to regulate the temperature, humidity and carbon dioxide concentration in the greenhouse. The ventilation methods of film greenhouse mainly include natural ventilation and mechanical ventilation. Natural ventilation is achieved by setting vents on the top and sides of the greenhouse, using the temperature difference and wind pressure between the inside and outside of the greenhouse to allow air to flow. Mechanical ventilation is the use of devices such as exhaust fans to force ventilation, which can more accurately control the amount of ventilation and ventilation time. |
The cost of thin-film greenhouses is relatively low. The cost of its skeleton material and plastic film are relatively affordable, in general, the cost of building a small film greenhouse per square meter may be about 5-20 US dollars, while the cost of a large film greenhouse per square meter may be about 15-50 US dollars. In contrast, the cost of a glass greenhouse per square meter may be about $150-300, and the cost of a PC board greenhouse per square meter may be about $100-200. This cost advantage makes the film greenhouse widely used in agricultural production, especially for some small and medium-sized growers and cost-sensitive agricultural projects. Product application
1. Quality and safety of agricultural products:
The film greenhouse provides a good environment for the quality and safety of agricultural products. Because the greenhouses are relatively enclosed, the use of pesticides and fertilizers can be better controlled. By using a combination of physical control methods (such as insect nets, light traps, etc.) and biological control methods (such as natural enemy insects, etc.), the residue of chemical pesticides can be reduced.
At the same time, irrigation and fertilization can be accurately controlled in the greenhouse, using drip irrigation, micro-sprinkler irrigation and other methods, combined with formula fertilization technology to ensure that plants get the right amount of nutrients, and improve the quality and safety of agricultural products.
2. Agricultural industrialization:
The large-scale application of thin film greenhouse has promoted the industrialization of agriculture. In some large vegetable planting bases, annual production and supply of vegetables can be achieved by building a large number of film greenhouses. For example, by rationally arranging planting stubble, taking advantage of the growth cycle and seasonal adaptability of different varieties of vegetables, it can achieve uninterrupted picking and selling of vegetables.
Moreover, the film greenhouse is closely integrated with agricultural product processing, cold chain logistics and other industries. After picking, vegetables can be processed and packaged quickly, and then transported to local markets through cold chain logistics, extending the shelf life and sales radius of agricultural products.
Address:
N/a, Weifang, Shandong, China
Business Type:
Manufacturer/Factory
Business Range:
Manufacturing & Processing Machinery
Company Introduction:
Different kinds of products are available in our company. We′re pleased to get your Inquiry and we will reply you as soon as possible. We stick to the principle of "quality first, service first, continuous improvement and innovation to meet the customers" for the management and "zero defect, zero complaints" as the quality objective.
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