[Market-farming] pH testers

bcluton at aol.com bcluton at aol.com
Mon May 12 12:51:06 EDT 2008


I'd also be interested in hearing more about folks experiences with hand held meters.  We've been using the colorimetric solutions type testers for checking our potting soil blends.  I haven't done a lot of sampling of field soils this way and typically rely on any annual laboratory testing we send out.  I've been considering a meter for some time but haven't decided on any particular types.  The standard cheapo probe types don't seem to be worth a lick.  There are some interesting options for handheld meters but most are most suited to liquid analysis.  For soils you'd be required to use a buffering solution and extract.  Still these are probably the most accurate and most can be calibrated after each analysis with a standard Ph solution.  Hanna Instruments are pretty well know.  But like I said I'm just exploring options as well.



Brian 


-----Original Message-----
From: Richard Robinson <rrobinson at nasw.org>
To: Market Farming <market-farming at lists.ibiblio.org>
Sent: Mon, 12 May 2008 11:20 am
Subject: Re: [Market-farming] pH testers








 On Mon, 5 May 2008 10:36:55 -0400, Richard Robinson wrote:
> What do you all recommend for pH testing? Hand-held meters? colorimetric
> solutions? sending off to a lab? I like the immediacy and simplicity of a
> meter, but wonder if I am getting the accuracy I hope for.

Hearing no replies...

Does nobody test pH? Or does no one like the method they use? ;)


 --
 Richard Robinson
 http://www.nasw.org/users/rrobinson/
 



 





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