Transparent glass steel Greenhouse:
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A transparent fiberglass fiber reinforced plastic greenhouse in a transparent glass fiber reinforced plastic instead of glass, built a greenhouse. Practice has proved that in a transparent glass fiber reinforced plastic greenhouse cultivated plants and crops, can significantly improve the yield and quality to achieve results. For example, Wuhan University and Beijing Chinese holly leaf jointly built by the transparent glass fiber reinforced plastic greenhouse, using even the inter-frame structure, simple structure, easy construction and low cost. Greenhouse cucumber, tomato significantly increase production, the data show that glass fiber reinforced plastic greenhouse in winter cucumber yield under the same conditions than in glass fiber reinforced plastic greenhouse, high yield 55%, in the spring tomato yield 48%. In Europe, transparent fiberglass fiber reinforced plastic greenhouse cultivation of vegetables and flowers than the annual output of greenhouse fiberglass, steel 10% ~ 20%. Beijing FRP apple orchard louang nursery greenhouse was imported from America, and in nurturing seedlings, planting flowers, planting of rare trees and tropical plants has made great achievements.

Transparent fiberglass fiber reinforced plastic greenhouse structure:
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Transparent fiberglass and steel is light and the carrying capacity of multi-functional composite materials used to build greenhouses can simplify the design of building structures, save material, reduce costs and facilitate construction.

Many forms of fiberglass fiber reinforced plastic greenhouse, small greenhouse often used single-slope roof structure. The light side of this greenhouse is transparent fiberglass fiber reinforced plastic plates, in order to reduce the support structure, the use of transparent fiberglass, the strength of steel, light panels can be designed to build cross-section for waveform, curved, folded plate-shaped and trapezoidal and so on.

Large fiberglass-steel greenhouse can be used with cross-vaulted roof, or double-sloping roof, this greenhouse can be used load-bearing structure of aluminum, galvanized light steel and prestressed reinforced concrete structures. Greenhouse-span is generally 6 ~ 12m, can also be designed to be larger, such as Germany built for the 18m span steel fiberglass greenhouse, sloping transparent fiberglass roof is a two-wave cross-section three twisted steel arch plate, a transparent fiberglass side walls folded steel plate, arch seat and columns of steel.

In a greenhouse scale, done specifically statistics, greenhouse area to 300 ~ 400m2, 900 ~ 1000m2, and 1000 ~ 1500m2 up. Small area of greenhouse used for kinds of melon, nursery, 1000 m2 large area is mainly used for greenhouse cucumbers, tomatoes, eggplant and other vegetables growing. To save energy, farmers in northern China more than a single-slope greenhouse plus insulation cover.

A variety of sunlight on plant photosynthesis:
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In vegetables, flowers and crops, the growth process, the role of its light is only a part of the sun - visible light. Too much solar radiation the Earth's surface on the UV wavelength is 290 ~ 400um, visible light is 400 ~ 760um, infrared light and far-infrared light for more than 760um.

? It is an invisible ultraviolet short-wave light, the wavelength range of 290 ~ 390um, on plant growth would not achieve a positive role, but the metabolism of plant growth, as well as changes in flower color is essential. Therefore, planting eggplant, cherry, flowers, greenhouse, hoping ultraviolet light through a little bit more. For the Department of root and leaf vegetables, flowers, remove the UV light contribute to the growth of plants. Impervious to UV light in the greenhouse cultivation of vegetables, Komatsu dish, round pepper, their photosynthesis faster than in the open air cultivation large and Sclerotinia sclerotiorum on cucumber, tomatoes inhibit the toxic diseases.

? wavelength of visible light visible light range 400 ~ 760um, removing 500um below the wavelength, can improve the quality of tea. In a translucent membrane, under selective cultivation of soybeans, crude protein content increased; in the blue film under cultivation, increased water content; in pink under the crude fat content of films increased, while root systems are well developed. In the plant growth process, the visible light is very important, in which red-orange light on crops play a key role in photosynthesis, crops also depend on the formation of vegetative organs of blue, purple. Visible light transmittance and thus directly affect the production of vegetables and flowers, and quality.

? infrared wavelength 760um or more infrared light alone, 760 ~ 800um wavelength of light is necessary for bud formation and flowering of light. 800um above the light is not absorbed by crops, only reflected or transmitted.

In the radiant energy of sunlight, 740um or more near-infrared light accounted for 50% to 60%, this part of the light energy to maintain a constant greenhouse temperature.

Transparent optical properties of fiberglass fiber reinforced plastic greenhouses:
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As a greenhouse translucent material, transparent fiberglass, steel transmission and scattering the sun's ability to introduce the most attention. When the sunlight through the fiberglass plate, due to the refraction through the large number of fiberglass fiber, so that according to the sunlight into the greenhouse in uniform, soft, no shadows, sunshine hours and an average intensity of the actual than the fiberglass high. This uniform distribution of the sunlight flower yield and quality are improved.

Transparent fiberglass fiber reinforced plastic greenhouse advantages:
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1, which leads to comparison of CO2: The CO2 greenhouse pass into the flowers and vegetables can increase production. For example, the Mediterranean countries in the greenhouse which leads to CO2, 50 days, tomatoes, weight gain 20% to 25%, winter planting roses production increased by 25% ~ 30%. Many countries have also shown that in a transparent fiberglass fiber reinforced plastic greenhouses which leads to CO2, can yield 33 percent of vegetables, flowers, quality improvement, production increased by 70%. However, in the fiberglass greenhouse which leads to CO2, the increase is only 29% of vegetables, flowers, yield 24%, to pass a fiberglass greenhouse with non-CO2-pass CO2 greenhouse compared to the fiberglass fiber reinforced plastic, fiberglass and steel greenhouse flower quality not as good as fiberglass fiber reinforced plastic greenhouse.

2, Water consumption: in a transparent fiberglass fiber reinforced plastic greenhouse cultivation of flowers, the irrigation water consumption on average lower than the fiberglass greenhouse. To Dianthus hydroponics, for example, transparent fiberglass fiber reinforced plastic greenhouse in the amount of water consumption of less than 27% fiberglass fiber reinforced plastic greenhouse. The advantage in agricultural production very meaningful. In the experiment, it is also found in plants, water consumption rate of a direct impact on plant yield and quality. This shows that water consumption may not necessarily be able to train more high-quality flowers and vegetables.

3, transparent fiberglass fiber reinforced plastic light aging: transparent fiberglass fiber reinforced during use, the light transmittance and mechanical properties will increase with the use of time lowered. From the growth of greenhouse crop conditions require, the transmittance to 70% below, crop growth will be limited. In a transparent fiberglass fiber reinforced UV absorber can be added to extend the service life, but prevent ultraviolet light through. Practice has proved that, plus a UV-absorbent transparent fiberglass, steel, service life of up to seven years, fluorine plastic film covering the surface of transparent fiberglass steel, service life for more than two decades.