Why are my tomato seedlings looking yellow?

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Posted by cheapdave on April 16, 2010, 8:38 pm
 
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started some tomatoes - 3 varieties, 6 of each in peat containers...used
organic potting mix (from home depot) watering with rain water....they are
couple of weeks old. I place them outside whenever it is sunny day...if
there is no sun, I use florescent lights 12 hours or so.... several have
first true leaves.........none are dark green.....they look sort of light
green color....I see the tomato plants in the stores look beautiful lush
dark green.........what am I doing wrong?


Posted by Billy on April 16, 2010, 8:52 pm
 

 cheapdave@home.com wrote:


At a couple of weeks old, they are probably no more than an inch or two
(2.5-5cm) tall. Relax. Can put them in the ground until it is 70F.
--
- Billy
"Fascism should more properly be called corporatism because it is the
merger of state and corporate power." - Benito Mussolini.

http://www.thirdworldtraveler.com/Zinn/HZinn_page.html

Posted by Billy on April 16, 2010, 10:32 pm
 

In article

At a couple of weeks old, they are probably no more than an inch or two
(2.5-5cm) tall. Relax. CAN'T put them in the ground, until it is 70F.
Oh, you can, but not much will happen.
--
- Billy
"Fascism should more properly be called corporatism because it is the
merger of state and corporate power." - Benito Mussolini.

http://www.thirdworldtraveler.com/Zinn/HZinn_page.html

Posted by David Hare-Scott on April 16, 2010, 9:49 pm
 

cheapdave@home.com wrote:

I am thinking they need more light.  Once they have their first true leaves
I move mine into dappled sun.  Then as they get near ready to plant out into
full sun.

David


Posted by Pat Kiewicz on April 17, 2010, 8:09 am
 

cheapdave@home.com said:

Does the 'organic potting mix' include any fertilizer?  It should say so
explicitly on the bag.  Unless the potting mix comes with fertilizer
you will need to add some to your seedlings.  Perhaps fish emulsion
(if you stick to purely organic).  Dilute to half-strength.

You didn't describe your seedlings as being tall or leggy, so I don't
think they lack for light.  It is possible to sunburn your seedlings if
you move them from flourescent lights to full sunlight too quickly.
They need to be acclimatized.

--
Pat in Plymouth MI
    
"Vegetables are like bombs packed tight with all kinds of important
nutrients..."     --Largo Potter, Valkyria  Chronicles
 
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