The Effect of Different Light Wavelengths on Plant Nutrient Quality in a Microcontroller-Controlled Greenhouse
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https://doi.org/10.5281/zenodo.14970105Keywords:
Microcontrollers, greenhouse automation, greenhouse lighting, chlorophyll, BarleyAbstract
Increasing the global population and decreasing urban and rural agricultural land make satisfying food demands critical. Greenhouses for growing plants in inappropriate conditions have been studied to improve agriculture in recent years. Based on technical advances, microcontroller systems have concentrated plant growth and development study. This research created a prototype greenhouse with compartments with different-wavelength LED lights and a microprocessor to manage light, humidity, and temperature. In the greenhouse, barley (Hordeum vulgare L.) was grown for animal and human sustenance. Plant growth and chlorophyll concentration were tested with various wavelength LEDs. In an experiment with red (35lm), blue+red (35lm+20lm), and blue (20lm) LEDs, the root and nutrient values measured from green leaves grown under blue or red light wavelengths were insufficient for the expected amounts on the 14th day, while the compartment with red and blue light showed statistically significant differences from all other lights. However, root growth was lower than the control group. This study intends to examine microcontroller-controlled artificial lighting systems in plant agriculture.
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