Development potential of agricultural lighting

Abstract: with the rapid development of LED technology, the low power consumption, high light source can be used in the field of agriculture.

As the saying goes "all living things depend on the sun light is the foundation of biological growth, survival and reproduction of the earth, photosynthesis of crops without light illumination, the illumination condition directly affects the yield and quality of crops. For a long time, the use of lighting in the field of artificial light in agriculture are high pressure sodium lamp, fluorescent lamp, metal halogen lamp, incandescent lamp, highlight the shortcomings of these sources are high energy consumption, high operation cost, energy costs accounted for about 40% to 60% of the cost of running the system. With the rapid development of LED technology, the low power consumption, high light source can be used in the field of agriculture.

LED is considered to be the most promising artificial light source in the field of agriculture in twenty-first Century. LED can emit monochromatic light needed for plant growth, and the red and blue LED combination, but also the formation and morphology of photosynthesis and plant morphogenesis spectra coincide, the light use efficiency of 80%~90%, energy saving effect is remarkable. Greenhouse, plant tissue culture, plant plants and edible fungi production and many other occasions can use LED instead of traditional light source.

Development potential of agricultural lighting

Since 1994, Japan began to try LED as lighting source plant factory, using the combined light source wavelength is 660nm red LED and 5% blue LED artificial plant plant cultivation of lettuce and rice crops, success. Since 1990s, all countries in the world are actively using LED as tissue culture light source. The artificial light is a common means of greenhouse environment control, artificial light especially indispensable equipment in greenhouse.

At present, the world's greenhouse area of 2 million 835 thousand hectares, of which China accounts for more than 86% of the total area of the world. Artificial lighting and lighting is the most important application of LED in agricultural field, using LED as the light source of the greenhouse, not only energy saving effect is remarkable, it is estimated in the range of 50%-60%, but also can improve the spectral distribution of the greenhouse, promote plant growth, increase yield and quality, the market is extremely optimistic about the prospects.

According to statistics, the annual output of more than 10 million enterprises at present, tissue culture seedlings have more than and 300, there are more than 5000 small tissue culture workshop and laboratory, the total area of the plant tissue culture in more than 20 million square meters, the annual output value of 20 billion yuan. LED in the field of tissue culture started earlier, the technology is more mature, with the further reduction of the cost of LED, the comprehensive popularization of LED.