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  • From: robert schuler <sunnfarm AT bellatlantic.net>
  • To: market farming <market-farming AT franklin.oit.unc.edu>
  • Subject: Re: Lowering PH
  • Date: Mon, 03 Apr 2000 12:19:00 -0400


Peter, If you soils are traditionally low in Ph, then the Ph will come
down over time, I used to farm on limestone soil before an interstate
highway came throw it, and the Ph was 7.8 to 8 and I had the best
production ever, watch out for hi ph mineral deficiencies...Bob.


Peter Worsley wrote:
>
> I just completed some soil tests on my 1 acre market vegetable plot, and
> discovered that the PH of my soil has been climbing for the last 2
> years. It has reached around 7.2. I haven't had any problems yet, but
> this seems too high for most vegetables, especially potatoes. I think
> what's caused this is that all the oyster shell flour I added 2 years
> ago to correct a calcium deficiency (I'm now using gypsum instead) has
> kicked in and caused the soil to become slightly alkaline. I've heard
> that adding sulfur will bring the PH down. I'm a little reluctant to add
> sulfur because I don't like adding unnecessary amendments, and I don't
> want the PH to start bouncing up and down like a basketball. Also, I'm
> an organic grower. Any suggestions?
>
> Thanks- Peter Worsley in Northern CA
>
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