Focus on the R & D and production of plant fill light
The five essential pillars of plant growth are temperature, moisture, nutrition, air and light. As the saying goes, everything grows by the sun. What should we do in case of bad weather such as haze and rainy days? Plant growth lights can help us to replace the sun's environment for plant growth and development.
However, plants, like people, need exercise, work and rest. Therefore, when using LED plant lights to supplement light to plants, it is also necessary to control the time. It is generally recommended that the lighting time of plants be controlled between 12-16 hours, so as to leave sufficient time for plants to rest, so as to ensure the work efficiency of plants at work every day.
The quality of light also has a very obvious impact on all stages of plant growth. For example, flowering and fruiting plants need sufficient red light during the period of flowering and fruit setting. If the red light is not enough, the light intensity can not reach the ideal effect, which will affect the flowering and fruit setting rate of plants.
If all kinds of light can be matched in proportion according to the needs of plants, the effect will be completely different. It can not only shorten the plant growth cycle, but also improve the yield and quality of plants. This is also the reason for the emergence of plant lights. It is also the reason why LED plant lamps replace traditional plant growth lamps.
When the time and light quality are reasonable, it is necessary to use LED plant lights to control the light intensity. If the light intensity is not enough, the photosynthesis and respiration of plants can not even reach the same level, and it is even more impossible to grow plants.
If the light intensity is too strong and exceeds the light saturation point too much, it is a waste of electric energy and unnecessary. 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.
Influence of spectral range on plant physiology, light source ratio parameters required by 14 common vegetables:
(1) Lettuce: the light source of 5 ∶ 1 and 7 ∶ 1 of red and blue light is the most suitable for its growth.
(2) The plant height, stem diameter and leaf width of leek in red / Blue 7 ∶ 1 treatment were significantly higher than those in other treatments.
(3) Cucumber: 7 ∶ 2 is the best ratio of red and blue light for the growth of cucumber seedlings, and 7 ∶ 1 is the best ratio during the growth period.
(4) Green vegetables and water spinach: 7 ∶ 1 is the best ratio of red and blue light for the growth of green vegetables and water spinach leaves.
(5) White radish: the most suitable light quality for growth: the ratio of red and blue light is 8:1.
(6) Lettuce: the ratio of red to blue light is 9 ∶ 1, which is conducive to the growth of lettuce.
(7) Strawberry and tomato: red and blue light 9:1 is the most favorable for the growth of strawberry and tomato, and the fruit is full and nutritious.
(8) Holly: the red and blue light is configured according to the ratio of 8:1. Holly has the best growth, strong and well-developed roots.
(9) Sprouts: the ratio of red, green and blue light of 6 ∶ 2 ∶ 1 is the most obvious.
(10) Calla Lily: the best growth condition is the ratio of supplementary red and blue light 6 ∶ 2.
(11) Anthurium scorching sun: comprehensive analysis shows that the treatment of red and blue light 7 ∶ 3 is better, which is conducive to morphology, root growth and dry matter accumulation.
(12) Dendrobium candidum: red and blue light 7 ∶ 3, its proliferation effect is the best; 6 ∶ 4 was more conducive to photosynthesis and material accumulation.