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A Few Notes about Different Types of Greenhouses.

Greenhouses differ in their thermal properties, their design and purpose.

According to the thermal properties the cultivating premises are subdivided into cold greenhouses, moderately cold greenhouses and moderately warm and warm greenhouses.

In winter in cold greenhouses the temperature is maintained at 5-7 C.

In moderately cold greenhouses a mean temperature is 8-12 C, and in moderately warm greenhouses - 12-15 C.

In winter in warm greenhouses for tropical plants the temperature must be between 18 and 22 C, in summer - higher. For instance, for "Victoria regia", a lot of tropical orchids and some palms during the summer growth period the greenhouses with a temperature of 25-30 and above are needed.

According to their design the greenhouses are divided into two major types:

1) Single greenhouses of larger or smaller sizes, and 2) separate greenhouses linked in a whole system (block), which lateral sides are replaced by poles. This is the so-called block greenhouses.

Among individual greenhouses lean-to and gable greenhouse are differentiated. The main difference between these greenhouses is skylights. In the lean-to greenhouse one slope of a roof is glazed, while in the gable greenhouse both the slopes are glazed.

Gable greenhouses have a lot of advantages over the lean-to. Light and thermal regime is better in them, they are more convenient for working, demand less expensive building materials per unit of floor space, and that is why more profitable from the economic aspect. Learn-to greenhouses have some benefits in early obtaining floral products, namely in February-March, when they capture the sun's rays better.

For the later receipt of flower production the gable greenhouses are more preferable.

Block greenhouses are the combination of gable greenhouses without sharing inner sides. Block greenhouses (the so-called Italian) operate on solar heating or bio heating (bio blocks). They are built of removable frames, mounted on a light carcass.

Article Source: GardenGap.com

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