Re: [compost_tea] ACT bubble size

From: <soilfoodweb_at_aol.com>
Date: Sun, 29 Aug 2004 17:20:45 EDT

Typically a compsot tea machine will come with set size for bubble
production.

All the tea makers that SFI works with (see the website) have made sure their
bubble sizes are not the MICRO sizes.

If your bubbles move upward in the water column at a normal rate, then you
can be pretty sure your bubble size is not too small.

On hte other hand, you don't want huge bubble sizes either, because then your
don't get enough surface area for significant air exchange to occur. So,
bubble sizes in the range of 1 mm to 1 cm would probably be the best.

And the way to test is to assess teh biology in the brew. Get a small
microscope, or find a Soil Foodweb Advisor near you who can test for you, or send
the samples into the SFI lab for the qualitative assessment. Two days from end
of brewing is the max time to get teh sample in to be assessed. your choice
how you want to do it.

Right now the SFI website does not list the qualitative assay, but just write
that on your submission form, and we'll do it for you - bactreia, fungi,
protozoa, nematode qualitative assessment (bad, ok, good, excellent categories,
plus what that means) on your report. Cost? $25 per sample.

OK?

Elaine R. Ingham
Soil Foodweb Inc., Corvallis, Oregon
Soil Foodweb Inc., Port Jefferson, New York
Soil Foodweb Institute, Lismore Australia
Soil Foodweb Institue Cambridge, New Zealand
Soil Foodweb Inc., Hilversum, The Netherlands
Laboratorios de Soil Foodweb, Culiacan, Mexico
Soil Foodweb Inc., Jerome, Idaho




Received on Sun Aug 29 2004 - 19:06:32 EDT

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