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Amber light LED narrow wavelength plant growth system

琥珀色LED窄波长植物生长系统

基本信息

批准号：
523346-2018
负责人：
Lefsrud, Mark
金额：
$ 4.37万
依托单位：
McGill University
依托单位国家：
加拿大
项目类别：
Idea to Innovation
财政年份：
2020
资助国家：
加拿大
起止时间：
2020-01-01 至 2021-12-31
项目状态：
已结题

来源：
https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=696768
关键词：
Amber light LED narrow wavelength

项目摘要

Light-emitting diodes (LEDs) are slowly becoming the primary lighting source in controlled environments. However, high pressure sodium (HPS) are still preferred by most growers as they result in higher yield and better plant quality for most plants when compared to LEDs. The advantage of LEDs over HPS lamps and other conventional lighting sources is the ability to select specific wavelengths of light, but most manufactures provide red (620 nm to 680 nm) and blue (420 nm to 460 nm) LEDs with limited wavelengths outside of this spectrum with nothing in the amber range where HPS is highest. Optical filters are tools that can be used to control LED wavelength characteristics. The goal of this proposal is to target specific wavelengths of light that impact plant growth and filter the light to 5 nm of precision with an ultimate goal to reach 1 nm and use this light to design light recipes to enhance plant growth. Our project objective is to construct and test a LED narrow wavelength plant growth (LED-NWPG) optical filter system that can be used to select the wavelengths of amber light, mimicking and surpassing the plant growth rate of the HPS lamps through improved biomass, leaf width and photosynthetic rate. This technology has been of interest to multiple end users including LED manufacturers (U Technology), growers (Choice North Farms), and grower groups (Quebec Farmers' Association).

发光二极管（LED）正逐渐成为受控环境中的主要照明光源。然而，高压钠（HPS）仍然是大多数种植者的首选，因为与LED相比，它们可以为大多数植物带来更高的产量和更好的植物质量。LED相对于HPS灯和其他传统光源的优势在于能够选择特定波长的光，但是大多数制造商提供红色（620 nm至680 nm）和蓝色（420 nm至460 nm）LED，其具有在该光谱之外的有限波长，在HPS最高的琥珀色范围内没有任何波长。光学滤波器是可用于控制LED波长特性的工具。该提案的目标是针对影响植物生长的特定波长的光，并将光过滤到5 nm的精度，最终目标是达到1 nm，并使用这种光来设计光配方，以促进植物生长。我们的项目目标是构建和测试一个LED窄波长植物生长（LED-NWPG）滤光系统，该系统可用于选择琥珀色光的波长，通过改善生物量，叶宽和光合速率来模仿和超越HPS灯的植物生长速率。这项技术已经引起了多个终端用户的兴趣，包括LED制造商（U Technology）、种植者（Choice North Farms）和种植者团体（魁北克农民协会）。