Re: [compost_tea] Rotary Pumps For Brewing

From: Mike Harvey <mharvey_at_westnet.com.au>
Date: Wed, 14 Jul 2004 10:24:54 +0800

How are you supplying aeration?
Are you using the rotary pump and a venturi for aeration and pumping the c=
t over over?

regards Mike Harvey
new life soils

  ----- Original Message -----
  From: Grant - Environmental Fertilisers
  To: compost_tea_at_yahoogroups.com
  Sent: Thursday, July 15, 2004 3:27 AM
  Subject: [compost_tea] Rotary Pumps For Brewing


  Hi Guys,
  Is there antone else compost/microbe brewing with a low pressure high vol=
ume rotary pump set up.
  Just reading all the problems with filters and screens,sounds like alot o=
f trauma.We use a presreened inoculi[27 depending on what we want as far as=
 ratios and diversity]This is then added to the pre aerated and warmed wate=
r with the apprpriate food.
  Brewed for 12-24hrs and then pumped into the sprayer and off we go[no fil=
tering or screening]
  We are doing 12000ltrs/day and are predominately apply to Dairy Farms or =
Kiwifruit Orchard.
  The SFI results are more than adequate with Fungi counts of 60[if require=
d]
  The criticism we initially got was the brewing system was too vigorous bu=
t the lab results and more importantly the on farm results speak for themse=
lves.
  Our key dairy farm operation has not used nitrogen for 3yrs now and the f=
arm gross margin was raised $85000 last year[or$1000/ha].During the Autumn =
dry spell the farmer had people stopping off the road and asking what they =
were doing so different,as all the farms were drying out around them and th=
is placed just stayed green!!
  As we brew in 4000ltr tanks[need to,to cover the farms were treating and =
economics]the idea of filters and screens is not practical[and a pain],due =
to the fact that when we deal with commercial spray contractors we need to =
cover 40-60ha/day to be economic.
  Does anyone else brew this way?
  Grant Paton-New Zealand

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Received on Tue Jul 13 2004 - 23:23:50 EDT

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