A follow up to Indoor Farming from May. LedsMagazine.com has published a new article that reviews the basics:
“The narrow spectrum of LEDs in different colors can be selected to enhance the photosynthesis process while also offering energy savings relative to broad-spectrum HID or fluorescent lights used in commercial farming.”
There is practical knowledge from a number of test farms in the U.S., Japan, and Europe. There is also research taking place at two Universities. Purdue University is looking at LED light with bedding plants. And McGill University (Quebec) is studying tomato production under a mixture of different light sources.