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  #1 (permalink)  
Old 03-17-2008, 10:24 PM
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Boron Deficiency

I have been having some problems with a plant and it looks exactly like the pic on THIS page regarding Boron Def.

It says eyewash can be used as it contains boric acid....

But how exactly should i give it to plant ?

Thanks
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Old 03-18-2008, 05:29 AM
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We need all the info on your grow including
What type of soil
What type of lights?
What, how much and when was it fed?
What is the soil/runoff pH?
What are the temps and humidity in the room?
What size pots?

Boron deficiency is very rare I have never seen it here on the board that I can remember.
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Old 03-18-2008, 07:19 PM
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Hi,
Indoor plant compost with 30% perlite
400w HPS
Fed Biocanna Vega (3.5-1.0-5.5) during veg
Fed Biocanna flores (2.5-2.0-5.0) during 12/12,, has been in 12/12 since 23rd Feb
Last soil run-off was 6.7 that was 10 days ago,, will do another 2nite
Temps are 75-80f (lights on) --- 60-68f (lights out)
Pots are 25cm diameter and hold about 3ltrs.

Heres some pics.

Any advice appreciated !!!!
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Old 03-18-2008, 08:06 PM
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In my oppinion thats either a phosphate deficiency or your lights are to close... probably both
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Old 03-18-2008, 08:18 PM
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Thanks for the reply buddy....
I really dont think its the lights.... but possibly Phosphate ?

I just thought it was Boron Def as it looks very similar to the pic in the link.

How would i correct phosphate ?
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Old 03-18-2008, 08:23 PM
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it looks like a phosphorus deficiency to me
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Old 03-18-2008, 08:33 PM
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Quote:
Originally Posted by FrostAie View Post
it looks like a phosphorus deficiency to me
Im really confused as to what it is now

What u guys think i should do ?
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Old 03-18-2008, 11:32 PM
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Almost looks like light burn as well
Do those nutes not have boron? almost looks like boron deficiency the question is why
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Old 03-19-2008, 12:25 AM
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i have chopped most affected areas off..... will keep a check on her and post more pics here over next couple of days.

Thanks
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Old 03-20-2008, 11:25 PM
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I think the buds have stopped maturing.... just don't look right...have flushed and added nutes with Boric acic... will give it a few days and report back
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Old 03-20-2008, 11:26 PM
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I guess those nutes don't have boron in them?
Chopping off effected leaves obviously won't solve the problem.
Let us know.
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Old 03-20-2008, 11:28 PM
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how big are your pots maybe the roots are out of space I dont really know
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Old 03-20-2008, 11:47 PM
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Thanks anyway lads....
I know its a bit of a head wrecker

I'll keep u updated over the next few days anyway.

Thanks again.
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