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And add dash of .....
Karen Randall wrote:
> I don't think there are any hobbyist grade tests for magnesium, but it's
> quite easy to test the hypothesis. Add a small amount of epsom salts and
> watch to see if the plants green up. That certainly is on the possibility
> list, since without adequate levels of magnesium, plant cannot properly use
> iron even when it is availbale to them.
For those of us who have not yet developed the judgement, what do you mean by a small
<harvsch at earthlink_net>