Writer：Jane Time：2019-07-04 Browse：65
As the fourth generation of new lighting source, LED has many characteristics different from other electric light sources, which also makes it the first choice of energy saving and environmental protection light source.
LEDs used in the field of plant culture also show the following characteristics: a variety of wavelength types, just in line with the spectral range of plant photosynthesis and photomorphogenesis; Spectrum width of half width, can be combined according to the need to obtain pure monochromatic light and composite spectrum; It can focus the light of specific wavelength to illuminate crops evenly. It can not only regulate the flowering and setting of crops, but also control the plant height and plant nutrients. The system produces less heat and takes up less space, which can be used in multi-layer cultivation stereo combination system to achieve low heat load and miniaturization of production space. In addition, its strong durability also reduces operating costs. Because of these remarkable characteristics, LED is very suitable for plant cultivation in controlled facility environment, such as plant tissue culture, facility horticulture and factory seedling breeding, and aerospace ecological life protection system.
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