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Old 04-09-2011, 09:13 AM
AustinA AustinA is offline
Junior Member
Join Date: Apr 2011
Posts: 5

I am super new, so take that for what you will, but is 1500 ppm a little high for spinach and certainly lettuce? Could the spots be nitrogen burn? What is the air temp at the grow? Have you grown this crop before? At the same EC?
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