Aquaponics Digest - Mon 01/17/00
Message 1: RE: tomatos ...
from "William Brown"
Message 2: seedling temperature shock
from "Marc Laberge"
Message 3: Re: seedling temperature shock
from "James Rakocy"
Message 4: Re: seedling temperature shock
from Adriana Gutierrez & Dennis LaGatta
Message 5: Re: tomatos ...
from wills/nachreiner
Message 6: Re: tomatos ...
from OLDJD4U
Message 7: Re: seedling temperature shock
from Marc & Marcy
Message 8: Re: Has anyone tried Azolla ( mosquito plant)
from "D.Bennett"
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| Message 1 |
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Subject: RE: tomatos ...
From: "William Brown"
Date: Mon, 17 Jan 2000 06:20:21 -1000
Hey Jay;
Did you mean 1500 ppm (EC approx 2)?.
William Brown mahiwai@cmpmail.com
-----Original Message-----
From: aquaponics
[mailto:aquaponics]On Behalf Of Jay Myers
Sent: Sunday, January 16, 2000 6:06 PM
To: aquaponics@townsqr.com
Subject: Re: tomatos ...
Ray -
We use an EC of 1500 for strawberries. There is a PhD around the Va. area
who tried to grow strawberries in the Vert-i-grow system using trout water,
but they didn't do that well. They had to suppliment with some hydro fert.
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| Message 2 |
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Subject: seedling temperature shock
From: "Marc Laberge"
Date: Mon, 17 Jan 2000 11:57:21 -0500
I need advice on transplanting my seedlings;the seedlings are romaine
lettuce, they will be transplanted once they reach 2 inches. The problem is
, they will be places on a raft system in net pots. The net pots are filled
with clay gravel at the bottom covered by 1 inch of tiny aquarium gravel.
The surface temperature of the gravel is ~18C ( 68F) and the water below is
at 15C ( 60F ).
Question 1. Will this change in temperature greatly shock the plant and
stunt it's growth ? ( The seedlings are in 25C ( 78F ) unit )
Question 2. Is the stratification in the net pot enough to affect the growth
of the roots; will the roots still grow down in search of more nutrients
although the water temperature is colder or will they hang around the warmer
top layer until all nutrients are used up then go down in search of a better
environment ?
Thank You all again for all the advice
Marc Laberge
Mont Tremblant
Qc, Canada
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| Message 3 |
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Subject: Re: seedling temperature shock
From: "James Rakocy"
Date: Mon, 17 Jan 2000 16:31:26 -0400
I doubt that they will experience temperature shock. Plants prefer the
cooler temperatures. The roots just grow and gravity (geotropism) makes
them grow downward. You do not need media in the net pots. Transplant them
with their seedling media. You can even transplant the roots bare and they
will do fine.
----- Original Message -----
From: Marc Laberge
To: aqua
Sent: Monday, January 17, 2000 12:57 PM
Subject: seedling temperature shock
> I need advice on transplanting my seedlings;the seedlings are romaine
> lettuce, they will be transplanted once they reach 2 inches. The problem
is
> , they will be places on a raft system in net pots. The net pots are
filled
> with clay gravel at the bottom covered by 1 inch of tiny aquarium gravel.
> The surface temperature of the gravel is ~18C ( 68F) and the water below
is
> at 15C ( 60F ).
>
> Question 1. Will this change in temperature greatly shock the plant and
> stunt it's growth ? ( The seedlings are in 25C ( 78F ) unit )
>
> Question 2. Is the stratification in the net pot enough to affect the
growth
> of the roots; will the roots still grow down in search of more nutrients
> although the water temperature is colder or will they hang around the
warmer
> top layer until all nutrients are used up then go down in search of a
better
> environment ?
>
>
> Thank You all again for all the advice
> Marc Laberge
> Mont Tremblant
> Qc, Canada
>
>
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| Message 4 |
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Subject: Re: seedling temperature shock
From: Adriana Gutierrez & Dennis LaGatta
Date: Mon, 17 Jan 2000 16:01:33 -0500
Hey Jim,
Welcome back! What's a good source for net pots? What size do you
recommend for lettuces?
Adriana
> You do not need media in the net pots. Transplant them
> with their seedling media. You can even transplant the roots bare and they
> will do fine.
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| Message 5 |
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Subject: Re: tomatos ...
From: wills/nachreiner
Date: Mon, 17 Jan 2000 09:19:31 -0600
At 10:04 PM 1/16/2000 -0500, you wrote:
In the summer we had great tomatoes growing in our greenhouse, watered from
the living machine but not grown directly in it. Of course in the summer
everyone has tomatoes. We were really excited about the prospect of year
round production but have found that the same tomatoes don't taste very
good in the winter. Our guess is that there isn't enough light here in the
North. We don't really want to add the cost of artificial lighting for
what is essentially still a side project. (It doesn't sell cheese). Does
anyone know if there are tomatoe varieties that are particularly good at
producing sugars with less light? We're not exactly in the tundra,
especially this winter. Global warming doesn't seem to be accompanied by
global lighting.
Box185 Plain,Wi 53577
(608) 546-2712
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| Message 6 |
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Subject: Re: tomatos ...
From: OLDJD4U
Date: Mon, 17 Jan 2000 18:11:29 EST
Unsubscribe.
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| Message 7 |
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Subject: Re: seedling temperature shock
From: Marc & Marcy
Date: Mon, 17 Jan 2000 19:15:56 -0700
James Rakocy wrote:
>
> I doubt that they will experience temperature shock. Plants prefer the
> cooler temperatures.
..snip..
Are you saying temperature shock does not occur or that the
temperature differential is small enough that temperature
shock is unlikely?
Marc S. Nameth
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| Message 8 |
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Subject: Re: Has anyone tried Azolla ( mosquito plant)
From: "D.Bennett"
Date: Mon, 17 Jan 2000 21:30:49 -0500
>Has anyone tried Azolla as a fish feed?
>
Did anyone answer this? I'm interested in knowing also.
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