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About LED Grow Lights Knowledge, How Much Do You Know?

 
The five important factors for plants growth are temperature, water, nutrients, air and sunlight. As the saying goes, all things grow up by the sun, what should I do if I encounter bad weather such as fog, rainy days? LED Grow Lights can help us replace the sun's light for plants growth and development.
 
However, plants, like people, need exercise, work, and rest. Therefore, it is necessary to control the time when using LED Grow Lights to fill the plants. It is generally recommended that the plants illumination time be controlled between 12 and 16 hours. Allow plenty of time for plants to rest to ensure that plants work efficiently every day.
 
The quality of light is also very obvious for various periods of plants growth. For example, the flowering result plants need sufficient red light during the flowering and fruiting period. If the red light is not enough, the light intensity will not reach the ideal effect, which of course affects the flowering and fruiting rate of plants.
 
If the plants various light can be matched to the plants according to the needs of the plant, the effect will be completely different, which not only shortens the plants growth cycle, but also improves the plants yield and quality. This is also the reason for the emergence of plant lights, and the reason that LED Grow Lights replace traditional grow lights.
 
When the time and light quality are reasonable, it is necessary to control the light intensity of LED Grow Lights. If the light intensity is not enough, the photosynthesis and respiration of the plants are not even enough, and it is even more impossible to grow plants.
 
If the light intensity is too strong and exceeds the light saturation point, it is purely wasted energy, and it is not necessary. Therefore, the most ideal state is to control the light intensity around the light saturation point, so that the plants can grow healthily at the fastest speed.

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Light source matching parameters required for 14 common vegetables:
 
(1) Lettuce: The light source of the colonization and seedlings is red and blue, respectively. The 6:1 and 7:1 light sources are most suitable for their growth.
 
(2) Chives: Red/blue 7:1 The ratio of plant height, stem diameter and leaf width of amaranth was significantly higher than other treatments.
 
(3) Cucumber: 7:2 is the best red-blue ratio for cucumber seedling growth, and 7:1 is the best ratio in the growth period.
 
(4) Green vegetables and water spinach: 7:1 is the best red and blue light ratio for the growth of green vegetables and water spinach leaves.
 
(5) White radish: the most suitable light quality for growth: red and blue light ratio 8:1.
 
(6) Oil wheat vegetables: The ratio of red and blue light is 9:1, which is conducive to the growth of oil wheat.
 
(7) Strawberries, tomatoes: red and blue light 9:1 is most beneficial for the growth of strawberries and tomatoes, and the fruit is full and nutritious.
 
(8) Holly: Red and blue light are arranged in a ratio of 8:1. The holly grows best, is strong and has a very developed root system.
 
(9) Sprouts: The most effective effect is the ratio of red, green and blue light at 6:2:1.
 
(10) Calla Lily: The growth ratio is best with a ratio of red and blue to 6:2.
 
(11) Anthurium Sun: Comprehensive analysis, red and blue light 7:3 treatment is better, which is conducive to morphology, root growth and dry matter accumulation.
 
(12) Dendrobium candidum: red blue light 7:3, its proliferation effect is the best; 6:4, it is more conducive to photosynthesis and material accumulation of seedlings.
 
Taking lettuce as an example, the required planting environment parameter values ​​are:
 
Illumination above the plant: 2600-2900lx (purity red and blue spectral illuminance value, non-white illuminance value), no natural illumination, complete artificial lighting system, pre-illumination cycle 6 h on, 2 h off, 3 cycles per day; late 14 h on , 10 h off, cycle 2 times a day;
Ambient temperature: 28-30 ° C (post-air conditioning starts to add, maintain 28 ° C)
Relative humidity: 50%-70% (post-air conditioner opening to 60%)
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