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Summer is hot and winter is cold. Did you choose the right greenhouse screen?
2020-11-25
It’s hot in summer and cold in winter. Go to your greenhouse to see if you have the right shade and insulation screen?
BOMAN teaches you how to do a physical examination for the sunshade and thermal screen.
Physical examination items:
Does the surface of the curtain begin to drum?
Does the aluminum foil for the curtain start to fall off?
Has the curtain been shrunk or deformed?
Is the curtain too bulky after being folded?
Does the curtain save you energy?
Has the curtain reached its expected lifespan?
In view of the above problems, if one or more problems have occurred in your greenhouse, then you may consider replacing the shade and heat preservation screen!
Why do you say this? Let me take you through the phenomenon to see the essence: the disadvantage of surface bulging is that it will cause "air leakage". In winter, the hot air and energy inside the greenhouse will escape from here; in summer, the curtain The hot air at the upper part will mix with the cold air under the curtain to increase the temperature of the lower part of the curtain and weaken the cooling effect; at the same time, this kind of drum will also cause the lower temperature water droplets on the curtain to fall on the crop.
So let's take a look at the specific situation of the removed network, as shown in the figure: it was like this before installation:
One year after installation, the problem net looks like this:
Aluminum foil is an important guarantee for the realization of the screen function. The oxidation or corrosion of aluminum foil in the air will cause the loss of the screen function (cooling and heat preservation function); insufficient reflection in summer forces poor cooling effect; in winter or night, rely on aluminum foil reflection The desire for long-wave radiation to increase the temperature of the ground and crops cannot be achieved, and energy-saving and heat preservation cannot be discussed.
So let us look at the specific situation of the removed network, as shown in the figure:
The shrinkage of the curtain means that the insulation screen starts to lose its shading and heat preservation functions and can no longer be used, otherwise the problem will be more
Let us speak with facts, please look at the next set of pictures:
The shrinkage of the curtain will not only affect the shading effect and energy-saving sealing of the curtain, but also damage the curtain system and the greenhouse itself.
Are you still using such a shade net? Dare to use it?
Choosing bad products not only wastes your money, but also makes the opportunities and time that belong to you slip away unknowingly. You must be alert!
Please remember our advice
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E-mail: boman@czboman.com
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Add: Gongjian Industrial Zone, Xueyan Town,Changzhou City, Jiangsu Province. China
— News —
The 22nd Kunming International Flower and Horticultural Exhibition in China This year's Kunming Flower Show will continue the theme of "Elephant to Yunnan, World Garden", highlighting Yunnan's unique position as a global treasure trove of biodiversity and a major flower producing area, shaping the connotation of the "Cloud Flower" public brand of green ecology, superior quality, and ecological wealth, promoting the vigorous development of the flower industry and the flourishing of the beautiful economy, fully demonstrating the extraordinary charm of the "World Garden".
The Horti Asia International Flower and Horticultural Exhibition was first held in Bangkok, Thailand in 2012. Overview of display coverage from pre harvest to post harvest, including seeds, soil treatment, substrates, irrigation systems, greenhouses, fertilizers, tools, and equipment. This exhibition aims to provide solutions for the horticultural industry (fruits, flowers, and vegetables) to reduce production costs, improve quality and yield.
2020-11-25
The production and use of scattered light in greenhouses has become very common in greenhouses located near the equator. Growers use special plastic sheds that scatter light to increase planting yield while avoiding burns to crops. Scattered light means that the light is scattered in all directions while being evenly distributed in an area.
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