Artificial radiation sources and solar radiation are the same in the wavelength and light color of radiation, and there is no difference. Therefore, there is no artificial radiation source to produce changes in the photosynthesis of plants. Unlike genetically modified plants, artificial radiation sources
Physically and chemically, it has exactly the same effect as solar radiation. Compared with solar radiation, artificial radiation sources have the only difference that the spectrum of artificial radiation sources cannot achieve continuous wavelength peaks like solar radiation.
In this regard, LED artificial radiation sources can be more effective for plant photosynthesis, because plant absorption spectra also have peaks and discontinuities. Of course, artificial sources increase the cost of plant cultivation.
Generally speaking, plant lights should be called plant artificial radiation sources (Plant Artificial Radiation).
Sources). We call it PARS, and we can apply the theory of electromagnetic radiation to the cultivation of plants correctly. However, most manufacturers of plant growth lights use the concept of light to express plant lights.
This may cause the user to make mistakes in the application of the plant light.
The rename of plant light as artificial plant radiation source--PARS was first proposed by us in this field. In fact, plant photosynthesis only receives electromagnetic radiation of different wavelengths instead of light.
The effective photosynthetic PPFD (PAR) value is the measurement unit of plant photosynthesis, and the lighting effect of the light source on the object is measured by the illuminance LUX. Add invisible light radiation to plant artificial radiation sources
At that time, the LUX indicator is basically invalid.
LED is the abbreviation of Light Emitting Diode (Light Emitting Diode). In the field of lighting, LED lighting is also called semiconductor solid-state lighting SSL (Solid
State Lighting), plant artificial radiation sources made of LEDs are called LED-PARS (LED Plant Artificial Radiation
Sources).
For different plants, according to the characteristics of their absorption spectrum, these LEDs of different wavelengths can be combined together in proportion to form a multi-band radiation source. The combination of wavelengths and mixing ratios are different from those of plant species.
The more important thing is that the LED radiation source is related to the radiation characteristics of the LED itself. The radiation characteristics of LEDs produced by different manufacturers are different, and physical analysis by professional instruments is required to determine the ratio combination. The effect of PARS
The result firstly depends on the professional analysis ability of the production plant for electromagnetic radiation. At the same time, the analysis of the absorption spectrum of the plant itself is also a key factor in the radiation effect.
The need for electromagnetic radiation of plants is only the need for electromagnetic radiation of specific wavelengths. Plants do not distinguish whether electromagnetic radiation of these wavelengths comes from solar electromagnetic radiation or man-made electromagnetic radiation sources. Taking advantage of this feature, we
We can develop an artificial electromagnetic radiation source PARS to provide to plants. Since the spectrum, radiation intensity and photoperiod of the artificial electromagnetic radiation source can be adjusted, plants can be in the environment of the artificial electromagnetic radiation source PARS.
Get the most effective growth, this is the greatest value of PARS in agricultural production.
PARAMETERS
