[NAFEX] Manganese in Greensand

Ernest Plutko ernestplutko at wiktel.com
Tue Jun 23 12:23:55 EDT 2009


Use manure or ground fish guts.  Soil chemistry is complex.  

---- Original Message ----
From: jimfruth at charter.net
To: nafex at lists.ibiblio.org
Subject: RE: [NAFEX] Manganese in Greensand
Date: Tue, 23 Jun 2009 09:56:03 -0500

>Mathew Waehner asked, "It seems that a lot of people use greensand
>without 
>ill
>effects.  Any documentation, beyond your own soil tests?"
>
>   My information mainly comes from what my soils people tell me when
>I send 
>in a soil sample from my raspberry beds.  I've got raspberry plants
>that 
>exhibit the chlorosis normally seen in plants that were sprayed with
>Round 
>Up.  Some time in the past, greensand was broadcast in that area.  I 
>normally would not expect manganese to be a problem until the pH
>drops below 
>5 but some other, unknown, mechanism seems to be at play.  Removing
>the 
>spent canes away from that area is slowly lowering the incidence of 
>toxicity.
>    I'm glad you asked the question because, after checking online,
>it 
>appears there are two compounds called "greensand", greensand and
>manganese 
>greensand.  The person who broadcast "greensand" here bought his
>product 
>from a water filtration business, a company that uses manganese
>greensand. 
>Checking my Handbook of Chemistry, I learned that the other greensand
>does 
>not contain manganese.  So it is me that was confused and if you
>hadn't 
>asked the question, I'd still be confused.
>
>Jim Fruth
>Brambleberry Farm
>Pequot Lakes, MN  56472
>For jams, jellies, syrups and more:
>www.jellygal.com
>1-877-265-6856 (Toll Free)
>1-218-831-7018 (My Cell) 
>
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