Greenhouse Tomato Growing w Supplementary High Pressure Sodium Vapor Lighting Iceland
Iceland's agriculture industry consists mainly of potatoes, tomatoes and green vegetables (in greenhouses), mutton and dairy products. A greenhouse is a structure with a glass or plastic roof and frequently glass or plastic walls; it heats up because incoming solar radiation from the sun warms plants, soil, and other things inside the building. Air warmed by the heat from hot interior surfaces is retained in the building by the roof and wall. These structures range in size from small sheds to very large buildings. Greenhouses can be divided into glass greenhouses and plastic greenhouses. Plastics mostly used are PEfilm and multiwall sheet in PC or PMMA. Commercial glass greenhouses are often high tech production facilities for vegetables or flowers. The glass greenhouses are filled with equipment like screening installations, heating, cooling, lighting and may be automatically controlled by a computer.
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Photo credit: © Phil Degginger / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: agriculture, artificial, crop, food, greehouse, greenhouse, growing, high, hot, house, hydroponic, hydroponics, iceland, light, lighting, pressure, sodium, supplementary, tomato, tomatoes, vapor
