Aquaponics Digest - Tue 06/22/99
Message 1: Re: Lettuce germination chamber
from Joy Pye-MacSwain
Message 2: Fwd. - [ET-ANN] preliminary announcement - IC-MFA-IBS 2000
from S & S Aqua Farm
Message 3: Lettuce germination chamber
from Adriana Gutierrez & Dennis LaGatta
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Subject: Re: Lettuce germination chamber
From: Joy Pye-MacSwain
Date: Tue, 22 Jun 1999 10:03:13 -0300
Details...yes details, please....
Joy Pye-MacSwain
Adriana Gutierrez & Dennis LaGatta wrote:
> I just had my first succesful germination with a homemade, portable
> germination tunnel for lettuces or other crops that require cooler
> temperatures to germinate. This lets you germinate directly in your
> growing beds, avoiding double handling and allows you to seed as densely
> as you like.
>
> The key ingredient is a room air conditioner. If anybody's interested,
> I can post the specifics.
>
> Adriana
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Subject: Fwd. - [ET-ANN] preliminary announcement - IC-MFA-IBS 2000
From: S & S Aqua Farm
Date: Tue, 22 Jun 1999 08:57:13 -0500
Thought this might be of interest to some of our members. Paula
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Date: Mon, 21 Jun 1999 15:36:52 +0200
From: Jacky Foo
Subject: [ET-ANN] preliminary announcement - IC-MFA-IBS 2000
Preliminary Announcement (June 1999)
Internet Conference on Material Flow Analysis of Integrated Bio-Systems
( http://segate.sunet.se/archives/et-w11.html )
The Conference will be an online conference in 2000 and to be organised by
the Institute of Advanced Studies of the United Nations University (Tokyo)
and the Integrated Bio-Systems Network
(http://www.ias.unu.edu/proceedings/icibs/ibs), in cooperation with other
organizations. It aims to bring together researchers, practitioners,
developers and policy makers involved in the application of
integrated bio-systems for resource utilisation, and waste management and
treatment in industry, agriculture, fisheries, and environmental and urban
planning. The Conference is a follow-up of the 1998 Internet Conference on
Integrated Bio-Systems (http://www.ias.unu.edu/proceedings/icibs) and will
encourage discussions on material/substance flow/balance of a wide variety
of integrated bio-systems.
Material flows involve the quantification of substances/wastes/nutrients
and energy that are being exchanged between sub-systems of nature and
society. Information that is generated from such studies can be very useful
for a number of purposes; e.g. to optimize or make bio-systems more robust
to changes; for improvement and development of waste management systems by
cities; minimisation of raw material utilisation in industry,
decision-making and planning of complex systems, life cycle and
environmental impact assessments, problem solving in tracing sources of
environmental problems, discover potential future problems, and they also
form a basis for regulation in material handling, prediction of
effectiveness of pollution abatement measures, identification of technical
development and research needs, etc. .
The scope of the conference is currently being defined by a planning group.
If you wish to join this planning group, please send your self-introduction
with information on your work and publications (if available) to
foo@swipnet.se . A future announcement on the "Call of Abstracts" will
provide more specific themes and topics for the Internet Conference.
Future announcements, scientific programme and funds for authors and
participant groups will be made via the mailing list ET-W11.
REGISTRATION
To receive further information and update on conference activities, please
register :
- via http://segate.sunet.se/archives/et-w11.html
- or send an email to listserv@segate.sunet.se and use the subscription
command:
SUB ET-W11 yourfirstname yourlastname, organization
e.g. SUB ET-W11 Ted Tschang, UNU/IAS-Tokyo
For personal help in registration, contact:
Mr. Jacky Foo
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Subject: Lettuce germination chamber
From: Adriana Gutierrez & Dennis LaGatta
Date: Tue, 22 Jun 1999 13:13:07 -0400
Ok, guys, here's how to make your own portable lettuce germination
chamber.
Equipment
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Room air conditioner - 5,000 - 7,000 BTU
Rolling cart or typing table
Long extension cord
Greenhouse plastic or clear vinyl 2 feet wider and longer than your
growing bed
2 or 3 bricks
Nursery trays
Duct tape
PVC pipe (optional)
1. Put the AC unit on the typing table or cart and center it at one end
of the growing bed with the bottom of the unit level with the top of
your growing surface. You don't want to block the air return.
2. Drape the greenhouse plastic over the growing bed leaving at least
one foot on top of the AC unit. This excess will be used to make the
end panels next to the AC unit.
To keep the plastic off the surface I used nursery trays positioned
about every 3 feet in addition to 2 PVC pipes at the end of the bed.
Another option for making the tunnel is to run a line from the AC unit
(probably need to drill a hole to attach it) to a fixed point at the
other end of the bed) and drape the plastic like a tent. You'll
need to create end panels to totally enclose the space. I did it by
leaving some excess plastic on both ends to fold back. To close in the
long sides I used duct tape to tape the pastic to the underside of my
trays. (Another option to "seal" the long sides is to put a length of
PVC pipe on top of the plastic on each side of the bed.) It was
necessary to anchor the plastic to the top of the AC unit with bricks
since the duct-tape could not withstand the humidity from the monsoon
rains blown in
through the screens in my greenhouse. The end panels require some
creativity with scissors and duct tape. You want the chamber fairly
well closed in but not necessarily air tight.
3. For good measure I strung some 30% shade cloth over the tray to
minimize the "greenhouse effect" from heating up the chamber. After 2
days I had 50% germination and by day 3 I was ready to remove the
chamber and move it elsewhere.
Before you buy a used AC unit test it to ensure that it can get down to
62 degrees or lower. This will allow some margin for heat infiltration
and still keep the temperature below 70 degrees.
I hope this works for everybody.
S&S Aqua Farm, 8386 County Road 8820, West Plains, MO 65775 417-256-5124
Web page http://www.townsqr.com/snsaqua/
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