Seedling cultivation light environment and seedling cultivation method of leafy vegetables

Abstract

The invention discloses a seedling cultivation light environment of leafy vegetables. In the light environment, a ratio of the number of optical photons with a wavelength of 380 to 399 nm is less than or equal to 0.1 percent, a ratio of the number of optical photons with a wavelength of 400 to 499 nm is 21 to 25 percent, a ratio of the number of optical photons with a wavelength of 500 to 599 nm is 14 to 15 percent, a ratio of the number of optical photons with a wavelength of 600 to 699 is 46 to 50 percent, and a ratio of the number of optical photons with a wavelength of 700 to 780 nm is 12 to 17 percent; in a wave band of 400 to 499 nm, a ratio of the number of the optical photons with a wavelength of 436 nm is greater than or equal to 1.3 percent, and a ratio of the number of the optical photons with a wavelength of 480 nm is greater than or equal to 0.79 percent; in the wave band of 600 to 699 nm, a ratio of the number of the optical photons with a wavelength of 630 nm is greater than or equal to 0.8 percent, and a ratio of the number of the optical photons with a wavelength of 660 nm is greater than or equal to 1.35 percent; and in a wave band of 700 to 780 nm, a ratio of the number of the optical photons with a wavelength of 730 nm is greater than or equal to 1.35 percent.

Description

technical field [0001] The invention relates to a light environment for growing seedlings of plants, in particular to a light environment for raising seedlings of leafy vegetables. Background technique [0002] The development of facility agriculture and modern agricultural factories has promoted the development of artificial light sources required for plant growth, which can replace sunlight as the power source for plant growth and provide a light environment for plant growth. The plant nursery stage plays an important role in the entire growth process of plants. It plays a very important role. For commercial seedling producers, neat and strong seedlings without chemical hormones are the common pursuit and the best choice for production practitioners; specific light quality conditions have great influence on plant morphology, leaf chlorophyll content, photosynthetic characteristics, yield and quality. All have an impact, and according to these, the light quality that is con...

AI Technical Summary

Problems solved by technology

The spectrum of traditional lighting sources is based on the selective design of human eyes to light. The product design adopts the "photometric system" evaluation system. Some bands are not needed for plant growth and cannot meet the needs of plant seedlings. operating costs, currently fluorescent lamps are mainly used in the seedling cultivation stage of leafy vegetables

In order to solve the above problems, many scientific research teams have developed special spectra for seedlings, such as CN201210172694.8 "a seedling lamp", CN201310533053.5 "seedling lamps", etc., all involve seedling spectra, but the life of rare earth phosphors is short and the emission spectrum is half High and wide, inflexible spectrum matching and many other shortcomings; such as CN201511034939.0 "a full-spectrum seedling lamp" involves LED to achieve the target spectrum, but for practical applications, there are still problems: 1. No "photon quantum light" is used for plant lighting source or spectrum 2. No specific spectral energy distribution is proposed for the seedling stage of specific plant species; 3. No specific light intensity is proposed for the seedling stage of specific plant species; 4. The intelligence of plant lighting sources is low

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