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[compost_tea] Re: standard testing procedures



---For instance I'm looking for standard testing methods to see 
whether I've got 10 to 150 micrograms active bacteria per ml of tea. 
and to see that the tea doesn't drop below 6 ppm DO. And to check it 
later. And to check total bacterial biomass and active fungal biomass 
etc. I want to identify ciliates, fungi etc using direct microscopic 
methods whether high and dry or under oil immersion or by plating 
total plate counts if applicable. I didn't say anything about one 
single nutrient medium though. Thank you .   Dennis

 In compost_tea@yahoogroups.com, "Jeff Lowenfels" <jeff@g...> wrote:
> Dennis,
> 
> Are you looking for tea making standards or testing standards? 
> 
> I am missing something here. There is lots on SFI's site about how 
to read their tests. 

<>>>>>>>>>>>>>>>>>>>>>>>>>>>I only looked for testing methods not 
interpretation of the tests.  I only looked at her tea stds. on pages 
37 -40. To obtain those numbers there has to be some testing 
procedures and I'm looking for those.  AOAC has standardized many 
analytical procedures and even analytical labs don't get the same 
answer when given split samples. Hopefully they're close though.






Those are the standards for testing compost teas........plate counts 
don't work because you have to have all the foods for all the 
critters and that doesn't happen in petri dishes with one single 
nutrient medium. 
> 
> There is no home test that anyone has discussed here or in the 
literature. Dr. Elaine is working on one or two or 100 ideas, as are 
lots of us who would love for a home test. Right now you can only 
test your teas on your plants or with SFI, IMHO.
> 
> 
> That doesn't mean we all wouldn't love you to develop one, and a 
cheap one at that!  My strong advice, however, is to send in your 
teas for a test to the SFI lab near you. This is particularly 
important for those new to making aerated compost tea. In addition to 
knowing what you are getting and learning how to fix it if it is not 
the best tea is really best for your plants and, as important, best 
for the  aerated compost tea movement: we don't want bad teas out 
there creating horror stories.
> 
> Too manhy people on this list haven't tested. For your sake and 
ours, don't be one of them!  It is worth it to know what you are 
making, especially the first few times. It isn't that expensive.
> 
<><><><<><><><<>Which tests do you have run?  Dennis





> Cheers and welcome,
> 
> Jeff
> 
> Old microbiology books probably won't help either. You need a new 
one! :)

Maybe a really old one!!!! Dennis




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