In the process of plant growth and development, light has two functions. One is an indirect function, which is the aforementioned photosynthesis, and the other is a direct function, which is photomorphogenesis. The wavelength types of LED plant production lamps are rich, which coincides with the spectral range of plant photosynthesis and light morphology.
The spectrum has a narrow half-width and can be combined as needed to obtain pure monochromatic light and compound spectrum, which can concentrate light of a specific wavelength to irradiate crops in a balanced manner; not only can adjust the flowering and fruiting of the crop, but also control the height of the plant and the nutrient composition of the plant; The system generates less heat and occupies a small space. It can be used for multi-layer cultivation and three-dimensional combination system, which realizes low heat load and miniaturization of production space.
The external environment affects the growth and development of plants, of which light is the most affected. The characteristics of full-spectrum LED plant lights: rich in wavelength types, just in line with the spectral range of plant photosynthesis and light morphology; the half-width of the spectral wave width is narrow, and pure monochromatic light and compound spectrum can be combined as needed.
Plant growth lamp organic planting is a kind of production that does not use chemically synthesized fertilizers, pesticides, growth regulators, genetic engineering and ion radiation technology, but follows the laws of nature, and adopts agricultural, physical and biological methods. To fertilize the soil, prevent and control diseases and insect pests, to obtain a safe agricultural production system for organisms and their products.
The effect of light on plants (function: foil and setting off the main scenery) objects is mainly in two aspects: on the one hand, light is necessary for photosynthesis of green plants; on the other hand, light regulates the entire growth and development of plants in order to better adapt to the external environment . This reliance on light to control cell differentiation, structure and function changes will eventually inherit the formation of tissues and organs, and become light morphogenesis.
In the case of insufficient sunlight, LED plant lights simulate the most favorable wavelength of sunlight for plant growth. There are two main spectral regions absorbed by plant chlorophyll, one is the red part of wavelength 620~660nm, and the other is wavelength 430~ The blue part of 450nm, and the absorption spectrum of lutein and carotene is the blue part of wavelength 400~500nm. Lutein and carotene absorb blue light and transfer energy to chlorophyll for photosynthesis. Therefore, the main spectral regions that can be utilized by photosynthesis are the red part with a wavelength of 620 to 660 nm and the blue part with a wavelength of 400 to 500 nm.
