Wednesday, January 16, 2013

Vietnam: Plants grow rapidly, safely with LED lamps

Vietnamese scientists are trying to create LED lamp products which have the light spectrum suitable with every kind of plant, which can help save electricity, churn out clean and off-season products.                                                                                    
               
LED lamp


Use LED lamps in the farm would bring higher biology energy efficiency. Thus allowing to better stimulate the growing of the plants than other familiar lamps. Especially, LED lamps would help save electricity. And you will pay less for the electricity bills.

Fluorescent lamps used in tissue culture would consume 30 – 40 percent of electricity, and 82 percent in the plant breeding enterprises. Meanwhile, with LED lamps, the volume of power to be consumed would be much lower. At plantation enterprises, if using LED lamps, one square meter of plantation area would need 0.27 kwh of electricity, while it would need 0.5 kwh with other kinds of lamps.
Scientists have also affirmed that the use of LED lamps in agriculture production would help improve the quality of farm produce, increase the nutrition value and reduce the nitrate concentration in vegetables and fruits. This also allows creating clean off-season products with high economic values. The experiments have shown that after a short period of lighting with LED lamp, the toxic nitrate concentration has reduced to 44-64 percent.

And LED lights would produce less heat radiation than high-pressure sodium lamps, allowing the photosynthesis process to occur more intensity to reduce the concentration of nitrate, lasting just a short period instead of the whole growth cycle.

Now, China, South Korea, Japan and the US have invented in utilizing LED lights in agriculture production. Meanwhile, Vietnam is just at the very early phase of utilizing LED lamps. However, scientists have reminded that the LED lamps needed could be different in terms of the light spectrum, the B/R ratio, the lighting intensity and duration, depending on the different stages of the plants’ development.

The only barrier in using LED lamps is the high production costs of the lamps, but the barrier would be removed in the future because of the LED’s advantages.

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