All gardeners know firsthand what a greenhouse is. For those who are not too versed in the terminology and think that the greenhouse is a complete copy of the greenhouse, this material provides detailed explanations. You will find out what a greenhouse can be made of, what types of structures there are for a personal plot by type of structure, heating and service life.
Greenhouses are a less perfect type of cultivation buildings with a removable cover and a small internal volume. For decades, up to the 60s of the last century, the main facilities for growing seedlings were single-pitch greenhouses with bio-heating. In the 60s, in connection with the development of mechanization of some labor-intensive processes and the use of technical types of heating, the modernization of greenhouses began. But so far, none of the modifications of the greenhouse has changed its essence as a structure in which the possibilities of regulating environmental factors and the use of mechanization are limited, and the timing and quality of work depend largely on the weather.
What Are Greenhouses: Types of Structures
To begin with, it is worthwhile to clearly understand why a greenhouse is needed and what are the designs of these simplest shelters for soil. Hotbeds are the oldest form of protected ground structures, primarily intended for growing seedlings. All scientific and technological progress in the protected pound was associated with the replacement of greenhouses with film greenhouses – structures that provide higher productivity and work culture, as well as better quality seedlings. However, at the present time, it is advisable to pay attention to greenhouses, which are the least energy-intensive facilities.
According to the design features, two types of greenhouses are distinguished: mono-gable and gable, which can be deep and ground. Ground structures are stationary and portable. And what are the most often made greenhouses forgiving? The translucent coating of the structure may be glass or film, and the latter – frame or curtain.
Greenhouses come in solar, biological and technical heating (water, air, electric).
And what are the greenhouses for the terms of operation? These structures are divided into early, middle and late.
The most widespread in production was a stationary gable greenhouse, deepened into the ground, covered with glazed frames and mats, with biological, electric and water heating. Single-pitch greenhouses in comparison with double-pitch ones, which are most often covered with plastic wrap, are more economical in terms of heat engineering.