Chongqing Qing Cheng Agricultural Science And Technology Co., Ltd.
Development,Innovation,Specialty,Concentration
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Glass Agriculture Greenhouse For Tomato lettuce and strawberry growing
Product Description
Glass greenhouse is a greenhouse with glass as transparent covering material. In foundation design, in addition to meeting the strength requirements, it should also have sufficient stability and ability to resist uneven settlement. The foundation connected to the support between columns should also have sufficient horizontal force transmission and spatial stability.
The bottom of the greenhouse should be located below the frozen soil layer. The heating greenhouse can consider the effect of heating on the freezing depth of the foundation according to the climate and soil conditions.
The bottom of the foundation should be more than 0.5 meters below the outdoor ground, and the distance between the top of the foundation and the outdoor ground should be greater than 0.1 meters to prevent the foundation from being exposed and adversely affecting cultivation. Except for special requirements, the distance between the top surface of the greenhouse foundation and the indoor floor should be greater than 04 meters
How to lower the temperature?
1. Exterior Sunshade System
It is to shield the excess sunlight outside the glass greenhouse and form a shade to protect the crops in the greenhouse.The temperature in the greenhouse is maintained at a suitable temperature.
Suitable temperature. This can effectively block direct sunlight from crops without affecting natural ventilation in the greenhouse.The cooling effect is better than internal shading, but external covering is required.Positive material is sturdy, durable, small stretch, anti-aging.
2. Natural Ventilation
There are three main advantages to using the natural passage method: one is to eliminate the residual heat in the shed and reduce the temperature; the other is to eliminate the excess moisture in the shed and reduce the humidity; the third is to adjust the indoor air content and increase the carbon dioxide content in the air. To increase photosynthesis. At the same time we must pay attention to increasing the ventilation area, continuous butterfly-type windows that can be used at the top of the greenhouse and increase the ventilation area of the side windows around. In this way, in the season when the spring and autumn are not too hot, the natural convection ventilation of the air through the side window and the top window can reduce the temperature. Groundwater resources can be used, coupled with heating and cooling units, which can not only cool down and heat up, but also environmental protection and energy saving, but the cost is currently too high.