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Yellowing Seedlings/Plants


Dear List Members:

I posted this question previously and didn't get an answer, so here it goes
again.  My seedlings, which are little at all anymore, seem to be yellowing.
 I am giving them the appropriate fertilizer (very little).

This seemed to start happening when I changed from all "cool" bulbs to 1 cool
and 1 warm in each unit.  Can anyone address this issue?  Should I go back to
all cool?  Last year I only used cool and didn't have this problem.

I've also cut back on the hours the plants are receiving light-- 12 on 12
off.  This hasn't helped either.  Most of the plants are now potted in "Sam's
Magic Earth."

Any help would be appreciated.

Toni
Zone 5


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