January 13, 2012

Germination trials: measuring light



How much light is actually reaching the inside of the greenhouse?
How much light gets through the low tunnel coverings?

To answer these questions we use watch dog weather trackers.  They measure:
    ~ average daily temperature
    ~ daily high and low temperature and the time at which they     
       happened
    ~ amount light in moles/day

Pretty useful little things.  

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