The Proportion of Red and Blue Lights Needed for 14 Kinds of Vegetables

Sunlight is composed of many different wavelengths of light, and only a tiny fraction of the solar radiation spectrum affects photosynthesis, about 5 percent of the sunlight. The optimal ratio of red light at 620-680nm and blue-violet light at 400-500nm was obtained through the study and LED plant lamp was successfully developed.
 
LED grow lamps can not only emit monochromatic light with narrow light waves, such as red, orange, yellow, green, blue, infrared, etc., and can be combined randomly according to different needs of plants, but also be a cold light source with low heat properties, and reduce the use of chemicals such as pesticides and hormones to ensure food safety.
 
Below is the ratio of 14 kinds of vegetables needs light source parameters:
 
(1) Lettuce: red and blue light sources 6:1 and 7:1 respectively are the most suitable for planting and seedling growth.
 
(2) Leek: red/blue 7:1 under treatment of leek plant height, stem thick, leaf width and other mass ratio were significantly higher than other treatments.
 
(3)Cucumber: The best red-blue ratio in the growth period of cucumber seedlings is 7:2, and the best ratio is 7:1 in the growth period.

(4) Green vegetables and water convolvulus: the best red and blue light proportion suitable for the growth of green vegetables and water convolvulus leaves is 7:1.
 
(5) White Radish: the most suitable light quality for growth: red and blue proportion: 8:1.
 
(6) Rapeseed: the proportion of red and blue light is 9:1, which is conducive to the growth of rapeseed.
 
(7) Strawberry and tomato: red and blue ray 9:1 is most beneficial to the growth of strawberry and tomato, and the fruit is full and nutritious.
 
(8) Holly: red and blue are arranged in proportion to the ratio of 8:1. Holly grows best, is strong and has very developed roots.
 
(9) Budding vegetable: the most significant effect is 6:2:1 red, green and blue.
 
(10) Calla Lily: growth condition to supplement the red and blue ray ratio of 6:2 is the best effect.
 
(11) Hot sun in the palm: comprehensive analysis showed that the treatment of red and blue ray was better, which was conducive to morphology, root growth, and dry matter accumulation.
 
(12) Dendrobium: red and blue ray: 3, with the best proliferation effect; At 6:4, it is more conducive to photosynthesis and material accumulation of seedling plants.
 

Lettuce, for example, they need planting environment parameter values for:
 
Illumination above the plant: 2,600-2900lx (pure red and blue spectral illumination value, non-white illumination value), no natural illumination, complete artificial lighting system, the early irradiation period is open at 6h, closed at 2h, and circulates three times every day; Open at 14h and close at 10h, circulating twice a day.
 
Ambient temperature: 28 to 30 ℃ (late start adding air conditioning, maintain 28 ℃);
 
Relative humidity: 50%-70% (late air-conditioning down to about 60%).
 
 

Of course, the above data can only be used as a reference. In the actual planting process, it is necessary to set the specific plant according to the specific plant. In order to provide customers with the best plant lights, Xinjia especially sets up customized services to provide the best lighting for plants.