GREENHOUSE DEFINITION

A more accurate definition of a greenhouse is "a frame or inflatable structure covered with transparent or translucent material in which crops are grown in an environment that is at least partially artificially controlled and in which the size of the space is such that it can be maneuvered and operated by human hands" This definition encompasses not only unheated structures for protection from the rain and for nighttime insulation, but also awnings for shade and protection from the wind. This definition encompasses not only unheated structures for rain protection and nighttime insulation, but also awnings for shade and wind protection.
Sunlight is the main source of light for greenhouses. If artificially regulated, artificial supplemental light will be the most expensive production input in a greenhouse. In my opinion, an important part of the definition of a greenhouse is "transparent or translucent material" because this phrase includes all common coverings such as plastic film, rigid plastic sheets, glass, open roof greenhouse coverings, and shading screens.
The degree of complexity and integration of environmental controls in greenhouses is usually related to the climatic conditions of the place where they are built. For example, greenhouses in the south are usually less capable of environmental control than those in the north. However, this trend is changing. Most greenhouses constructed in the last five years, regardless of where they were built, are equipped with computerized control systems capable of precisely regulating greenhouse heating, ventilation, and cooling equipment. This is largely due to the fact that product quality and time-to-market accuracy are becoming increasingly important to growers