Look at this pic and help me diagnose the problem please

Hello:

Plants are 2 weeks in flower and have been getting really light. Its not underfed as I just hit them with 900 ppm half floranova grow and half bloom. The ph of the plant runnoff is a little low at 5.7. I am growing in 1 part each of
Fox Farm OF ...and...sunshine number 4....roots organic and perlight.

Heres the pic...

Thanks for the help and please everyones opinions are welcome here. Today is watering day and I have my water bubbling with nothing in it. I am planning on just useing sweet this watering.

I am thinking it is mag def but Im only on my third grow and need a little help from the old wise growers here on this fine website. :rasta:

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ph is low, your at hydro level. try for 6.5. is your soil fresh(recently transplanted) or the same mix for a while? new soil plus ferts may lead to nute burn. its not bad yet, good eye on catching this sooner and not later.

Quote:

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Originally Posted by MEDEDCANNABIS

ph is low, your at hydro level. try for 6.5. is your soil fresh(recently transplanted) or the same mix for a while? new soil plus ferts may lead to nute burn. its not bad yet, good eye on catching this sooner and not later.

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Yep I know the ph is a little low..thanks though. The soil is not a new transplant. Its 4 gallon smartpots and they are 2.5 weeks into flower. I am thinking I will rater in a small amount of hydrated lime to try to bring it up 2 6.1 or there abouts. So....do you think it is mag lockout due to low ph...damn...where is that chart that shows where mag is best absorbed on the ph scale... I did do a folier feed with 3/4 epsom salts last night and then a rince/residue folier feed again this am just b4 lights on.

DOES IT LOOK LIKE A MAGNESIUM ISSUE? I understand that I dont need to neccicarily add anythiong to correct it....but knowing what is locked out or deficient would be great. Im color blind and have problems seeing it.

So does this sound like a good plan....

Heavy watering/soil leech with water with some hydrated lime to swing up the ph...

Here's that chart.

Quote:

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Originally Posted by Mrbudkisd

Yep I know the ph is a little low..thanks though. The soil is not a new transplant. Its 4 gallon smartpots and they are 2.5 weeks into flower. I am thinking I will rater in a small amount of hydrated lime to try to bring it up 2 6.1 or there abouts. So....do you think it is mag lockout due to low ph...damn...where is that chart that shows where mag is best absorbed on the ph scale... I did do a folier feed with 3/4 epsom salts last night and then a rince/residue folier feed again this am just b4 lights on.

DOES IT LOOK LIKE A MAGNESIUM ISSUE? I understand that I dont need to neccicarily add anythiong to correct it....but knowing what is locked out or deficient would be great. Im color blind and have problems seeing it.

So does this sound like a good plan....

Heavy watering/soil leech with water with some hydrated lime to swing up the ph...

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relax...oooohhhmm, alright mag may be a problem, but dont freak:thumbsup: your in old soil and 900ppm may be just not enough. now you need some additives like cal/mag. you seem low on N so fix your ph problem first and start figuring out what you need for vigorous growth. ph5 and ph6 can make a world of difference so always keep it checked. one whole ph point can wreck a plant. grow on mate.

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Originally Posted by tikiroom

Here's that chart.

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great chart tiki that lays it out plain and simple. i put that in the save file. i always say when you know root systems you can eat and smoke all day long:D

without the troubleshooting form there is no way an MG issue can be determined. Just looking at leaves it appears to be N deficiency, which you say is not possible as you just fed.

You may have lockout. More inportantly, what is incoming PH? Have you used up all the buffers in the soil? Can be many things.

Ok thanks for the help everyone....

The ph going in is always checked with my pinpoint meter and is adjusted to 6.3 - 6.5. I usually add dolomite to my soil but this time it got skipped and the resulting ph runnoff was 5.7 - 5.8 at the beginning of my grow which is acceptible if it doesnt go lower. I checked it and it was 5.4 yesterday so the buffers have been depleted. I added 2 tablspoons epsoma pelitized quick acting lime per plant and worked it into the top 1 inch of soil thes moistened and let it sit for half hour then leeched a heavy water haveing to empty the drip pans before they overspill. Hopefully the 2 tablespoons was enough...and how fast does this stuff work?

Here is what I used...anyone know how fast it works? I checked the runnoff as I did it and it was unchanged but that did not nesicarily meen that is is not working..

Budkist.

Heres a pic of the epsoma and one of my garden so you can see my setup and what we are dealing with...[attachment=o262474]

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Quote:

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Originally Posted by tikiroom

Here's that chart.

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Thanks for this......:rasta:



SSSSOOOooooooo..................... whats the easiest safest way to swing the ph up to 6.4? Is it the hydrated white powder lime that is watered in?

Should I be going today and buying some to water in the next watering which is tommorow if I want...???

Budkist