Aquaponics Digest - Thu 09/20/01
Message 1: Re: Fe . from "Marc Laberge"
Message 2: RE: Hydroponic Information, and even cheap ozone generators
from "Hurst, Steve ( China)"
Message 3: RE: Hobbyist vs. Commercial
from "Hurst, Steve ( China)"
Message 4: RE: costs and competition and quality
from "Hurst, Steve ( China)"
Message 5: Re: Fe
from "TGTX"
Message 6: Re: Fe
from Donald Bailey
Message 7: Re: Fe
from kris book
Message 8: Lettuce to form heads
from "Devon Williams"
Message 9: Re: Lettuce to form heads
from "gutierrez-lagatta"
Message 10: Re: Lettuce to form heads
from S & S Aqua Farm
| Message 1
Subject: Re: Fe .From: "Marc Laberge"
Date: Thu, 20 Sep 2001 02:35:41 -0400
Thanks Bert,
I have been using chelated iron for quite a while and have had good results.
I still have a lot of it, thanks any ways.
That is all you added 0.57ppm once every 2 weeks ? Interesting.
-----Original Message-----
From: Bertmcl
To: aquaponics 'at' townsqr.com
Date: Wednesday, September 19, 2001 11:37 PM
Subject: Re: Fe .
>Marc,
>
>In my research & education grant project - my Horticulture PhD had me use
>powered Iron Chealte (may be mispelled) I used 2.6 grams in 1200 gal fish
>system every 2 weeks and the Tilapia did great and the plants leaves were a
>beautiful green from then till i removed them from the grow beds.
>10 lbs was about $35.USD . I will be glad to send you a small quantity if
it
>will help,.
>
>Let me know.
>
>Bert McLaughlin
>New Kent VA
>
| Message 2
Subject: RE: Hydroponic Information, and even cheap ozone generators
From: "Hurst, Steve ( China)"
Date: Thu, 20 Sep 2001 17:34:49 +0800
Kris,
Sorry, Just got back, so bit late in replying.
Will check these out,
Thanks
Steve H
SNIP
Steve Hurst,
I still can't find any info on which veggies clone the best but, this
indoor marijuana growers web site has an abundance of useful information
on hydroponic plant deficiencies, cloning techniques, and even a good
site for ozone generators.
http://www.hydroponicsbc.com/home.html
http://www.hydroponicsbc.com/hydroponics.html
| Message 3
Subject: RE: Hobbyist vs. Commercial
From: "Hurst, Steve ( China)"
Date: Thu, 20 Sep 2001 17:37:44 +0800
http://www.interwld.com/new/pico/pico-adc200.htm
Pico Have a System called an Enviro monitor ( Look under Data Aquisition for
PICO )
http://www.pointsix.com/cgi-bin/PointSix.cgi?IHardWare
These run the Dallas Semiconductor 1 wire network.
Free Software and relatively cheap components for a monitoring system
Ideal for "tinkerers"
Steve H
If anyone is using a monitoring / alarm system, I,and I'm sure others would
appreciate any comments and sources.
I am looking for a system that can page or call if an alarm situation
occurs.
Bob
| Message 4
Subject: RE: costs and competition and quality
From: "Hurst, Steve ( China)"
Date: Thu, 20 Sep 2001 17:33:12 +0800
( just got back to work, catching up on emails )
Brent,
As I live in the Philipinnes and work in China, I know that your comment
about Slave Labour has some truth.
However, I should also have to point out the real world economics over here.
As an example,I pay my builder $US 7 a day, my labourers get $US 3 a day.
And I am not ripping them off
.this is more than the going rate over here.
For that money they can afford to have their own Simple House, feed and send
4 children to school, and have their own Motorcycle !
Couple that with no Heating bills for raising Tilapia ( tropical Fish in a
Tropical
Climate ).
Lets look at the factories I go to in China to buy my Pumps, valves and
electrical
components. Average factory workers earnings ( production line hand ) are
around
$US 50 a month. Add to this Clothing Food and Accomdation as ALL workers
here are live
in! . That only adds about another $US 50
The Western World can NEVER compete with these prices, let alone any talk of
slave labour.
What the West HAS got that I find difficulty in finding in the products over
here
is QUALITY. How much interest do those Factory Hands have in these products
when they
assemble them ?
How much interest would Slave Labour have in those products ?
The last 4 submersible pumps I bought ( straight from the Factory ) I had to
strip them
down and re-assemble them before they would work.
On a visit to one of the factorys,I have seen people holding expanded
Polystyrene injection guns, at the end of their shift,
just drop them as soon as the factory siren goes off. They spend the first 2
hours of every
day re-cleaning that equipment to where its usable again !
This is done every single day !
Don 'at' t waste your time trying to compete with third world countries on labour
and production costs. You can 'at' t win.
My advice is to Concentrate on Quality and the Developement of Expertise.
>From what I have seen over the last 6+ years I have been working here, they
will NEVER catch up.
Steve H
SNIP
Yes,
Much of what is coming into the US is produced by slave labor / prison labor
and or political detainees. That said do we want Uncle Sam to do it all? The
more trade we do with places like China the more freedom slips in.
Then you have places that trade at less than cost in order to get real money
to use in the open market. Others are using drug money to buy produce then
ship it in to launder the drug money. Within reason they do not care
if they take a lose on the load of vegetables.
I do not know if there is an answer.
Brent
| Message 5
Subject: Re: Fe
From: "TGTX"
Date: Thu, 20 Sep 2001 06:35:14 -0500
Bert McLaughlin wrote:
>In my research & education grant project - my Horticulture PhD had me use
>powered Iron Chealte (may be mispelled) I used 2.6 grams in 1200 gal fish
>system every 2 weeks and the Tilapia did great and the plants leaves were a
>beautiful green from then till i removed them from the grow beds.
>10 lbs was about $35.USD . I will be glad to send you a small quantity if
it
>will help
Iron Chelate (pronounced "Kee-Late") or FeEDTA can be used. Recall that
Adler at West Virginia USDA ARS Station used very small amounts of it in
trout effluent which had been "pre-settled", I think, prior to being
introduced to NFT troughs. So, there was already some iron available in the
liquid fraction, presumably, and Adler only added enough Fe, K, and Mn to
bring P in the liquid fraction of the trout effluent up to the point that P
was the limiting plant nutrient. I seem to recall really low FeEDTA
additions
.somebody help me, I posted on this on 2 or 3 occassions.
I used steel wool packed into the gravel right at or near the drainage pipe,
so there was a lot of ebb and flow, flood and drain right there at that
point. The high surface area and very small pore volume inside the steel
wool mass ensured that the surface tension of the water made at least the
inside of the steel wool mass a bit anoxic. Whereas the outside was pretty
much aerobic. Overtime, parts of the steel was black. Part was orange.
The leached iron went into the fish tank first, but the fish tank volume was
exchanged 10 times a day or so. Therefore, I concluded that the Fe was
making it's way to the plants. Could the Fe have been oxidized in the short
time it spent in the fish tank? Perhaps, but then I saw no visual evidence
of transition metal deficiencies in my plants.
Also know that I grew the plants in pea gravel which likely had some Fe and
Mn trace concentrations, etc which the bacteria and plants can actively
transport/deliver. Also, I occassionally supplemented with fish emulsion
and seaweed extract like a good Cub Aquaponiker.
Having said that, what I wish I would have done is to contact HydroGardens
and follow there instructions to submit tissue samples to a plant nutrient
lab and have HydroGardens interpret the results.
http://www.hydro-gardens.com . Mr. Marc L, if you are a control freak, as
you say, then try the FeEDTA, the steel wool, the nails, the gravel only,
the gravel plus fish emulsion and seaweed extract
.independently if you
have the number of systems to carry it out, perhaps in a compare and
contrast study. I suggest that you go ahead now and submit your tissue
samples from plants which have received no additional supplement treatment.
i.e, ones that are grown in gravel only, and receive only the fish
feed/feces/effluent as nutrient source, just to see where you are in the big
scheme of things. You may have already done that
but don't just have
them look at iron
.have them do the Big Chalupa on the testing
look for
everything hydro-gardens tells you to look for.
O.K.? O.K.!
Good Luck.
Gotta go work now, to save the planet and ourselves from ourselves.
Wish me luck.
Ted
| Message 6
Subject: Re: Fe
From: Donald Bailey
Date: Thu, 20 Sep 2001 09:43:08 -0400
UVI adds iron every 3 weeks. Using the known volume of water we add
enough Iron Chelate FE330 (10% DTPA Fe) to make a 5 ppm concentration in
the system. In the following 3 weeks the concentration declines to 2-3
ppm. We do not see iron deficiency in the plant leaves (yellowing and
venal chlorosis). This system is a floating raft aquaponic system for
lettuce production.
There is a test kit from Lamotte which uses a color change and their
"Octa-slide method" to test for concentration. If you are into
knowledge and control you may want to invest in that kit.
>
>
> | Message 2
> ' '
> Subject: Fe .> From: "Marc Laberge"
> Date: Wed, 19 Sep 2001 13:52:47 -0400
>
> Hi all ,
> Which would be a better way to add iron to my system?
>
> 1. Frequent additions of weak concentration of Fe
> or
> 2. Less frequent additions of higher concentration of Fe
>
> Marc Laberge
> Mont Tremblant
> Quebec , Canada
>
>
--
Donald S. Bailey
University of the Virgin Islands
Agriculture Experiment Station
Aquaculture Program
340-692-4038 - phone
340-692-4035 - fax
Visit our site at http://rps.uvi.edu/
| Message 7
Subject: Re: Fe
From: kris book
Date: Thu, 20 Sep 2001 10:01:41 -0600
Lamotte makes great testing equipment. The first link below takes you to
plant tissue test kits. The second link will take you to aquaculture test
kits and electronic meters. The third link has hydroponic test kits. I
have no connection to Lamotte, I have used their testing kits with good
results.
kris book
http://www.lamotte.com/WEB-SITE/SOL/HOME-SOL.HTM
http://www.lamotte.com/WEB-SITE/AQU/HOME-AQU.HTM
http://www.lamotte.com/WEB-SITE/SOL/HOME-SOL.HTM
.>
> There is a test kit from Lamotte which uses a color change and
> their
> "Octa-slide method" to test for concentration. If you are into
> knowledge and control you may want to invest in that kit.
>
>
> >
> > .
> .
> > | Message 2
> |
> > '
> '
> > Subject: Fe .> > From: "Marc Laberge"
> > Date: Wed, 19 Sep 2001 13:52:47 -0400
> >
> > Hi all ,
> > Which would be a better way to add iron to my system?
> >
> > 1. Frequent additions of weak concentration of Fe
> > or
> > 2. Less frequent additions of higher concentration of Fe
> >
> > Marc Laberge
> > Mont Tremblant
> > Quebec , Canada
> >
> >
>
> --
> Donald S. Bailey
> University of the Virgin Islands
> Agriculture Experiment Station
> Aquaculture Program
> 340-692-4038 - phone
> 340-692-4035 - fax
> Visit our site at http://rps.uvi.edu/
>
| Message 8
Subject: Lettuce to form heads
From: "Devon Williams"
Date: Thu, 20 Sep 2001 15:28:41 -0400
***ALERT! ALERT! ALERT!*****
***NOVICE QUESTION!!!***
I am having a devil of a time getting my Romaine and Black Seeded Simpson
lettuce to form heads. Can anybody tell me what the lettuce needs to do
this???
Thanks!
Devon Williams
Beer Belly Brothers Brewing
Watkinsville, GA
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| Message 9
Subject: Re: Lettuce to form heads
From: "gutierrez-lagatta"
Date: Thu, 20 Sep 2001 15:13:28 -0500
Cool weather!
> I am having a devil of a time getting my Romaine and Black Seeded
Simpson
> lettuce to form heads. Can anybody tell me what the lettuce needs
to do
> this???
| Message 10
Subject: Re: Lettuce to form heads
From: S & S Aqua Farm
Date: Thu, 20 Sep 2001 22:08:27 -0500
At 03:28 PM 09/20/2001 -0400, you wrote:
>***ALERT! ALERT! ALERT!*****
>***NOVICE QUESTION!!!***
>
>I am having a devil of a time getting my Romaine and Black Seeded Simpson
>lettuce to form heads. Can anybody tell me what the lettuce needs to do
>this???
>
>Thanks!
>
>Devon Williams
Devon - are you certain the varieties you've chosen SHOULD form heads? Here
are a couple of photos from the Johnny's Seeds site that show your BS
Simpson, and a variety of romaine. I don't know exactly what result you're
looking for, but the BS Simpson we've grown never truly formed a "head". We
actually preferred that lettuce, as well as several varieties of Romaine
lettuces because they remained loose and easy to cut.
Black-seeded simpson:
http://www.johnnyseeds.com/cgi-local/Minishopsql4.cgi?action=page&adver=othe
r&item=LETT
Medallion Romaine:
http://www.johnnyseeds.com/cgi-local/Minishopsql4.cgi?action=page&adver=othe
r&partnumber=2129P
Paula
S&S Aqua Farm, 8386 County Road 8820, West Plains, MO 65775 417-256-5124
Web page http://www.townsqr.com/snsaqua/
|
