Re: [compost_tea] compost tea and biodynamics

From: Mike Harvey <mharvey_at_westnet.com.au>
Date: Thu, 18 Sep 2003 07:57:33 +0800

Lynton,
This is facinating and I have observed this effect of the different
vortices. Do you have a reference for this information that we could look
at??
Regards Mike Harvey.

----- Original Message -----
From: "rlbct" <rlbct_at_clear.net.nz>
To: <compost_tea_at_yahoogroups.com>
Sent: Thursday, September 18, 2003 7:40 AM
Subject: Re: [compost_tea] compost tea and biodynamics


> Hi Elaine -
> (Sorry to have missed you in NZ recently)
> I'm not an expert in BD, but may be able to contribute something to this
> topic.
> (BTW, I am more inclined to think of the preps as innoculant, tho I can't
> rule out other effects).
> "Stirring"
> There are two basic methods of stirring, each of which has a distictive
> "look":
> 1. stirring the circumference - this produces a wide, low V (called a
> crater by some).
> 2. stirring the center - this produces a deep vortex (like an inverted
> tornado). I have read that such vortices charge the water electrically -
> positively for one direction of stir, negatively for the opposite. (I
don't
> know if method 1 above charges the water to any extent).
>
> There is also the length of time spent stirring in a direction before
> reversing direction. This could affect the oxygen uptake? since the
> reversal causes lots of bubbles (and eddies/vortices).
> And there is the speed at which the water is stirred.
>
> It might be that the stir is required to "wake up" organisms - I don't
know.
> Who knows what effect electrical charging might have on them?
>
> "Spraying"
> generally BD preps are splashed around in droplets, and are meant to
affect
> the soil, except for one that is meant to be sprayed in a fine mist on the
> vegetation.
>
> I must emphasise that this is my take on it.
>
> I'm impressed with the effect of the flowform, because the water seems to
> stay in the chamber for only a brief time. It would be very interesting
to
> compare the rate of oxygenation with a flowform (what sizes?) with that of
> CT brewers, and BD stirring...
>
> Lynton


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Received on Wed Sep 17 2003 - 20:19:21 EDT

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