North American Fruit Explorers mailing list at ibiblio

["William Freels" <w.freels@worldnet.att.net>]

Friends:

Cation Exchange Capacity ??????????

Try  WIKIPEDIA
and
Ask   WHAT IS CATION EXCHANGE CAPACITY

My idea is that  sand would have a low exchangecapacity
and
clay would have a higher exchange capacity.

Let me know if this is "sort-of"  correct.

Best regards,  Bill Freels, Paducah, Ky
----- Original Message ----- 
From: "Mark or Helen Angermayer" <hangermayer@isp.com>
To: "North American Fruit Explorers" <nafex@lists.ibiblio.org>
Sent: Wednesday, October 18, 2006 11:21 PM
Subject: [NAFEX] Soil test


> I recently had my soil tested and had some questions about it.  I wonder
if
> some of you would be interested to look over the results below and offer
any
> comments.  I don't know diddly about agronomy.
>
> The soil sample was taken from 10 holes.  In a post, Jerry recommended A&L
> labs several months ago and it turned out they were the cheapest lab I
could
> find for the amount of testing done.  The lab had a very fast turn around
> time.  Here are the results:
> All numbers are in PPM unless otherwise noted.  Also, they rated the
amount
> of each element as either (Very Low-VL; Low-L; Medium-M; High-H; Very
> High-VH)
>
> Organic Matter=4.8%;  Phosphorus-Bray P1 ppm-P=5(VL);  K=101(M);
Mg=330(H);
> Ca=2900(H);  S=11(M);  Zn=3.5(M);  Mn=33(H);  Fe=24(H);  Cu=1.7(H);
> B=1.0(M);  Soil pH=6.9;  CEC-meq/100g=17.8;  Percent Base
> Saturation-(%K=1.5; %Mg=15.5; %Ca=81.6; %H=1.5)
>
> I also asked for fertilizer recommendations for peaches.  Here they
> are(lbs/acre):
>
> Lime=0;  N=65;  Phosphate-P205=100;  Potash-K20=95;  Mg=0;  S=0;  Zn=2.5;
> Mn=0;  Fe=0;  Cu=0;  B=1
>
> Here are some questions I have.  Any help would be appreciated, as well as
> any comments.
>
> -Zn, B, K, and S are all listed as Medium in amount, but the
recommendations
> only call for adding Zn, B, and K(Potash).  What about S?
>
> -I thought peaches require a pH of 6.5.  I can't see that the fertilizer
> recommendations would lower the pH.  Is 6.9 OK for peaches?
>
> -What in the world is Cation Exchange Capacity (CEC)?  Is it very
important?
>
> -I only have about one acre of land and am growing fruit trees on about
1/2
> of it.  Am I likely to find a Coop that will mix such a small amount of
> fertilizer?  If so, any idea on what would be a fair price?  I would
> probably need it bagged.  If they won't mix it for me should I just try to
> buy some raw phosphate since it's most lacking in the soil?
>
> -I've read P only moves down about 1 inch per year.  Will I likely have to
> put it on every year?  Would it help to put a little extra on the first
year
> since it's so low?
>
> Thanks,
> Mark Angermayer
> Zone 5 Kansas
>
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