Saturday, June 21, 2014

Locavore and Organic

Technology Review has a piece on LED lights in greenhouses.  Includes this surprising factoid:
Consequently, the number of commercial greenhouses and the area they occupy is rocketing. In the Netherlands, for example, greenhouses occupy around 0.25 per cent of the land area of the entire country.
 It reports on a study showing LED lights would be much cheaper than sodium lights, with the interesting possibility of tailoring the color spectrum output to match plant characteristics--certain plants use some parts of the spectrum and not others, etc.

I wonder whether greenhouse plants can be organic, if grown under unnatural lights.

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