Cultivation light environment and method of leaf vegetables

Abstract

The invention discloses a cultivation light environment of leaf vegetables. In the light environment, the proportion of the number of light quanta with the wavelength being 380 nm to 399 nm is smaller than or equal to 0.1%, the proportion of the number of light quanta with the wavelength being 400 nm to 499 nm ranges from 13% to 15%, , the proportion of the number of light quanta with the wavelength being 500 nm to 599 nm ranges from 17% to 19%, the proportion of the light quanta with the wavelength being 600 nm to 699 nm ranges from 50% to 55%, and the proportion of the light quanta with the wavelength being 700 nm to 780 nm ranges from 13% to 17%. In the wave band of 400 nm to 499 nm, the proportion of the number of the light quanta with the wavelength being 436 nm is larger than or equal to 1.2%, and the proportion of the number of the light quanta with the wavelength being 480 nm is larger than or equal to 0.85%. In the wave band of 600 mm to 699 nm, the proportion of the number of the light quanta with the wavelength being 630 nm is larger than or equal to 0.78%, and the proportion of the number of the light quanta with the wavelength being 660 nm is larger than or equal to 1.35%; the proportion of the number of light quanta with the wavelength being 730 nm in the wave band of 700 nm to 780 nm is larger than or equal to 1.35%.

Description

technical field [0001] The invention relates to a plant cultivation light environment, in particular to a cultivation light environment of leafy vegetables. Background technique [0002] In artificial light-type closed plant factories, artificial light sources are used instead of sunlight as the power source for plant growth to provide a light environment for plant growth. At present, traditional fluorescent lamps are mainly used in the cultivation of leafy vegetables, and their spectrum is based on the selection of light by the human eye. The product design meets the "photometric system" evaluation system, but it is not suitable for plants. Some bands in the spectrum are not needed for plant growth, which greatly wastes light energy and increases the operating costs of plant factories. At the same time, fluorescent lamps have high energy consumption and short lifespan. Short, easy to break and many other shortcomings. With the development of semiconductor technology, many ...

AI Technical Summary

Problems solved by technology

[0002] In artificial light-type closed plant factories, artificial light sources are used instead of sunlight as the power source for plant growth to provide a light environment for plant growth. At present, traditional fluorescent lamps are mainly used in the cultivation of leafy vegetables, and their spectrum is based on the selection of light by the human eye. The product design meets the "photometric system" evaluation system, but it is not suitable for plants. Some bands in the spectrum are not needed for plant growth, which greatly wastes light energy and increases the operating costs of plant factories. At the same time, fluorescent lamps have high energy consumption and short lifespan. Short, fragile and many other disadvantages

With the development of semiconductor technology, many scientific research teams have carried out related research based on the advantages of LED technology, such as CN201320601030.9 "vegetable growth lamp", CN201510560130.5 "a kind of LED composite full spectrum that promotes plant growth", CN201510769588.1 "has Continuous-spectrum LED plant growth lamps", CN102084793A "A LED lamp spectrum ratio method for promoting or controlling plant growth", CN102210239A "Plant growth regulation lamps", etc., all disclose related achievements of plant light sources, mentioning the use of LEDs with different wavelength bands Chips or combined with phosphor technology to prepare plant growth spectra, but for practical applications, there are still problems: 1. The "light quantum measurement system" is not used for plant lighting sources or spectra, which misleads users; 2. Specific spectra are not proposed for specific plant species Energy distribution; 3. No specific light intensity is proposed for specific plant species

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