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Greenhouse PAR Lighting Requirements

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gepman

Electrical
Joined
Mar 26, 2007
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364
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US
Does anyone know of any good references for PAR lighting requirements for different plants, photoperiod requirements for different plants, and general technical references on greenhouse lighting? I am particularly interested in edible plants. This isn't exactly my specialty!
 
The ASHRAE books have data on watts/ area for various species, also hours duration, not sure if it was in fundamentals or systems, have you tried the IES ?
 
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