To: North American Fruit Explorers <nafex@lists.ibiblio.org>
Subject: Re: [NAFEX] sources potassium or magnesium?
Date: Sun, 9 Jul 2006 19:26:15 -0400
On Jun 27, 2006, at 8:53 AM, Thomas Olenio wrote:
Hello,
What are good, available natural sources of potassium
I'm not a soil scientist, but here are some possibilities: greensand; granite meal; kelp; wood ash (if you also want to raise pH; also be sure wood ash is not from sources contaminated with heavy metals, etc.)
and magnesium for
plants/trees?
Some types of limestone are high magnesium. Again, this will also raise your pH, of course.
Sul-Po-Mag is high in both and I think is still considered permissible.
--Rivka
Finger Lakes NY; zone 5 mostly
Re: [NAFEX] sources potassium or magnesium?,
road's end farm, 07/09/2006