Chongqing Qing Cheng Agricultural Science And Technology Co., Ltd.
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Single Tunnel Plastic Film Covered Greenhouses For Seed Breeding / Beans
Product Description
Its durability must be considered in the construction of film greenhouse. Its durability is affected by the aging resistance of greenhouse materials and the bearing capacity of the main structure of greenhouse. In addition to its own strength, the durability of transparent materials also shows that the transmittance decreases with time. The service life of general steel structure greenhouse is more than 15 years.Especially in the plastic shed in winter, this work is very important in early spring and low temperature season. The film should be cleaned at noon and in the afternoon when the temperature is high. The paint film dyeing and cleaning in multi span greenhouse can be completed with self-made long soft brush, and the pressurized dyeing water can be sprayed on the roof of greenhouse with hose, and the cleaning can be conducted in sections, and triangle ladder or scaffold can be used. In the use of greenhouse
Professional Design
Two types of multi span greenhouse
1. Double layer film greenhouse
It is an improved type of 8430 film greenhouse widely used in North China. A layer of arch and double-layer membrane are added under the outer arch, which has good heat preservation performance and poor light transmittance, and is suitable for flower breeding. The investment cost is 160-200 yuan / m2.
2. Single layer film greenhouse
Conventional 8430 multi span greenhouse, common film greenhouse, with a span of 8m, an opening of 4m and a column height of 3M. This kind of greenhouse has low cost and can be equipped with electrical equipment such as sunshade and ventilation. Widely used in the south. The northern area is used as a shed (spring and autumn shed). The investment cost is 100-150 yuan / m2 / m2.
3. Chemical products
In particular, some pesticides and fungicides containing sulfur or chlorine will destroy the stability of agricultural film quality. If sulfur fumigation is used in the greenhouse, sulfide generation by gas combustion must be prevented. Because sulfide will seriously reduce the service life of agricultural film. When burning sulfur, pay attention not to let the temperature exceed 160 ℃, so as to effectively prevent the generation of sulfide.