Design and Implementation of Artificial Grow Light for Germination and Vegetative Growth

The purpose of this research is to build artificial grow light using LED for growing leafy vegetables from germination to harvesting (vegetative growth). Plants need to capture photons as energy for photosynthesis in 400nm - 780nm spectrum. Different plant species will respond differently to specifi...

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Bibliographic Details
Published in:IOP conference series. Earth and environmental science 2020-02, Vol.426 (1), p.12144
Main Authors: Pratama, Bagus Wira, Glenn, Fabian, Atmadja, Wiedjaja, Liawatimena, Suryadiputra, Susanto, Rudy
Format: Article
Language:English
Subjects:
Artificial grow light
Environmental conditions
Flowers & plants
Germination
Graphical user interface
LED
Light
Light distribution
Light emitting diodes
Luminous intensity
MQTT
PAR
Photons
Photosynthesis
Plant growth
Plant species
Plants (botany)
Species
Ultraviolet spectra
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Summary:The purpose of this research is to build artificial grow light using LED for growing leafy vegetables from germination to harvesting (vegetative growth). Plants need to capture photons as energy for photosynthesis in 400nm - 780nm spectrum. Different plant species will respond differently to specific light spectrum. Many studies have been done to find optimal light spectrum for plant growth, but there are still many researches to be done because there are still many combinations of light and plants species to be discovered. Specific light spectra combination is called light recipe. This research will help botanist to discover new light recipe for plant species by mixing 6 light spectra with individual intensity and time control. The developed grow light system has graphical user interface that run in Android tablet, and uses MQTT protocol for communication between android application and grow light system. Light recipe and setting are stored in database and the system also has light sensor to monitor light environmental conditions. Grow light consists of 6 types of 3W high power LED with specific color spectrum: Royal Blue, Deep Red, Ultraviolet, Full Spectrum, Far Red, and Natural White. Testing result shows that the system can produce uniform light distribution across the 50 x 50 cm grow area on average 22.6 µmol m-2s-1 using 60° lens. Germination result of lettuce using grow light shows good results compared to sunlight.
ISSN:1755-1307
1755-1315
DOI:10.1088/1755-1315/426/1/012144