What is green house?

With the production of high molecular polymers - polyvinyl chloride and polyethylene, plastic films are widely used in agriculture. 

What is green house?

Greenhouse refers to a room with facilities such as cold protection, heating and light transmission for cultivating plants in winter. In the season that is not suitable for plant growth, it can provide growth period and increase yield, and is mostly used for plant cultivation or seedling raising of warm vegetables, flowers, forest trees and so on in low temperature season. Greenhouses are buildings that control or partially control the environment in which plants grow. Mainly used for non-seasonal or non-regional plant cultivation, scientific research, addition breeding and ornamental plant cultivation, etc.

In the early 1950s, Japan, USA and some European countries successfully applied plastic film to cover the hotbed, and then covered the shed with good results. The greenhouse was originally a special equipment for vegetable production. With the development of greenhouses, the application has become more and more extensive. At present, greenhouses have been used for potted and cut flower cultivation. For example, greenhouses are used for cultivating fruit such as grapes, strawberries, watermelons, melons, peaches and citrus, etc. In forestry production, used for tree seedlings, ornamental trees cultivation, etc. 

Why is a greenhouse called a greenhouse?

Greenhouses originally mean botanical gardens. But with the spread of the term "greenhouse effect", this word has been given a new meaning. As we all know now, greenhouse effect describes the way a portion of the sun's heat is absorbed by the earth's atmosphere and keeps our planet warm at night. And the same process that warms up the earth also takes place in a greenhouse, where the glass (or plastic film) structure will capture the sunlight and the area under the glass/film will heat up. That is why now greenhouse is the widely used term to describe these sheds of plastic film, glass or polycarbonate structures.