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  • From: "Bill Shoemaker" <wshoemak AT inil.com>
  • To: "market farming" <market-farming AT franklin.oit.unc.edu>
  • Subject: Re: S & pH
  • Date: Fri, 7 Apr 2000 14:12:26 -0500


To bring the pH of a sandy loam up from 6.0 to 6.5 requires approximately
1400 lb/acre of common limestone (95% CaCO3). To acidify a similar soil from
7.0 to 6.5 would only require about 100 lb/acre of elemental sulfur. This is
referenced from Knott's Handbook for Vegetable Growers, third addition.

-----Original Message-----
From: Peter Worsley <pwors AT svn.net>
To: market farming <market-farming AT franklin.oit.unc.edu>
Date: Friday, April 07, 2000 1:26 PM
Subject: Re: S & pH


>Alan Brant wrote:
>>
>> Can somebody tell me what quantity of Sulfur is needed to affect
pH
>> significantly? I know it would vary, but are we talking about quantities
>> akin to lime? Can we hear an example e.g. on a silt loam, to lower pH
>> from 6.5 to 6?
>
>I, too, am curious about this. I'd like to lower PH from 7.2 to 6.8 on
>sandy silt loam, for mixed vegetable production, including potatoes.
>Thanks- Peter
>
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