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Old 11-23-2012, 11:01 AM
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Think Green Think Green is offline
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Join Date: Jan 2009
Location: Arkansas--Mississippi flood plains
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I can't believe I allowed myself to fall for Ric's tricks.
Below my post RIC......obviously not by better judgement I said--Nickel, Selenium,etc. as a secondary answer instead of iodine.
The answer is NI--Nickel.

The 5 cent answer!!!
Funny to say the least because when you are looking for an answer it is right before you!

Nickel is a key component of selected enzymes involved in N metabolism and biological N fixation. Plants suffering from Ni deficiency show necrosis initiating from the tip of the leaf.
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