K, Mg, deficient or Ca toxicity ?(pics)

orbad · Apr 23, 2012

Strain: Critical wk 4
Medium: happy frog soil
Nutes: AN iguana 12ml, B 16ml, sensizime 16ml, rhino skin 8ml, Nirvana 8ml, and GO CaMg at tsp per gal.
RO water
Ph: in 6.3 out is higher
Temps 72-4
Humidity: got real high for a bit yesterday 89 but is back to 76 today (turned exhaust fan on full time)
600w hps in 4x4x7 tent
Plant needs water. Going to flush 1/2 gal straight RO (PH'd) then water with full strength nutes. 1/2 gal per 2gal container for a light flush.

Let me know if you need more pics to help. Thanks guys the forums are helping a ton.

growdamnit · Apr 23, 2012

just the old leaves? how bout a pic of the entire plant?

kushtrees · Apr 24, 2012

are those the recomended does for B vitamin, nirvana and sensizyme, they seem really high

did that start after your humidity spike? High humidity can cause Ca def, but that doesnt look like a Ca issue to me, maybe a super mild one. I also doubt its Mg as there is no yellowing in the viens, if thats on older leaves my guess would be K def, looks like your stems are a lil red also which also points to K. I would wait till someone else chimes in thats a guess on my part, more info would help

mastacheeser · Apr 24, 2012

my guess would be its just the old stuff
have you defoilated?
is it just happening on the leaves that arent getting alot of light?
ive also noticed increased yellowing when i over/underwater

looks like its going to be some fire!

ttystikk · Apr 24, 2012

I think that's a healthy girl, and you're just seeing the beginning signs of the plant concentrating its efforts on the buds rather than the fan leaves.

Uploading a deficiency chart:

growdamnit · Apr 24, 2012

N def is common during flowering

orbad · Apr 24, 2012

It is just the older leaves.

I'm removing leaves that directly block light to buds and or that are blocking airflow through the plant.

Nutes: I'm going off of a medium feeding chart from an. So yes they are recommended.

I noticed the problem after he RH spike but I don't think it caused the issue.

More pics tonight when the lights come on.

orbad · Apr 24, 2012

More pics. Friday will be the start of week 5.

Bubblehaze · Apr 24, 2012

Its normal in my experience. Specially when they are flowering hard.

jyip · May 16, 2012

appears to be normal to me, jus the plt using up resources for ur budz

orbad · May 16, 2012

All is good plants are trimming up nicely.

K, Mg, deficient or Ca toxicity ?(pics)

K, Mg, deficient or Ca toxicity ?(pics)

orbad

growdamnit

kushtrees

mastacheeser

ttystikk

growdamnit

orbad

orbad

Bubblehaze

jyip

orbad

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