Now, plant growth lamps are basically LED, and variety, some say red basket light 8:1 is good, and some say white light contains all kinds of luminous flux, but the spectrum is discontinuous. The spectra of incandescent and halogen lamps are continuous. Can 50W halogen lamps be used when plants grow lamps? If you can, please explain the reason (save electricity for no reason, I don't use electricity for money)
The halogen tungsten filament heats up and emits a continuous spectrum of radiation from the black body, so it goes from red to violetCan not say no effect, but the effect is almost close, indeed, may burn plants.
The light environment is one of the most important physical environmental factors necessary for plant growth and development, through the quality control regulation, plant morphogenesis is an important technology field cultivation facilities.Effects of spectral range on plant physiology:The effect of 280nm ~ 315nm on morphology and physiological process is minimal315 nm~ 420nm has little chlorophyll uptake, affecting photoperiod effects and preventing stem elongation420, nm~, 500nm (blue) chlorophyll and carotenoid absorption ratio of the largest, the greatest impact on PhotosynthesisThe absorption rate of 500 nm~ 620nm pigment is not high620nm ~ 750nm (red) chlorophyll absorption rate is high, which has significant effects on Photosynthesis and photoperiod effects750nm ~ 1000nm uptake rate was low, stimulating cells extended, affecting flowering and germination of seeds>1000nm converts to heatFor most growers, plants, sodium lights, and metal halide lamps are the best sources of sunlight. Metal halide lamp with blue light suitable for initial plant foliage growth, sodium rich agricultural red orange light to promote flowering plants, have a positive effect.
When using artificial light sources, we have to select the closest natural light that satisfies the plant's photosynthetic conditions. The light source should have the following characteristics:1. efficient conversion of electric energy into radiant energy2. achieve high radiation intensity in the effective range of photosynthesis, especially low infrared radiation (heat radiation)3. the radiation spectrum of the bulb conforms to the physiological requirements of the plant, especially in the effective spectral region of photosynthesis.Compared with the intensity in the effective zone of photosynthesis, the energy conversion effect of sodium lamp is two times higher than that of mercury lamp in various artificial light sources with horizontal radiation. Sodium light is the most effective light source for greenhouse plants to affect photosynthesis and correct growth. The tubular lamp can achieve high efficiency radiation 150lm/w, is currently on the growth of various crops most favorable choice. Increasing the sodium vapor pressure in the ceramic arc tube can broaden the spectrum of blue and red light, which is a high range of wavelengths pursued. In high-pressure sodium lamps applied to horticultural products, we recommend PLANTASTAR (OSRAM), SON-T, AGRO (PHILIPS), LUCALOX, XO (GE). Their difference is to raise the higher 0-40% blue range and activate the chlorophyll of plants. To achieve maximum radioactivity, all sodium lamps are fitted with reflectors at the side of the lampshade. At present, the majority of factories in China generally use the sodium lamp as the street light, and use the sodium lamp on the spot. The export has caused a lot of losses to the customers.
