Lux at canopy

Here are a couple of the latest charts from Fluence which provides decent guidelines:

And, CO2

where the 400 PPM is essentially no supplementation (it is the average normal atmospheric concentration for CO2).

Now, most argri light measurement is in PPFD using the umol/m2/s unit for the photsynthetically active region. You could probably estimate the LUX to umols conversion but it’s hard to know what spectra is being measure with a generic LUX meter. If you get into this in more detail, you may want to consider obtaining a PPFD meter since it’ll be easier and more accurate over the long haul.

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