HELP NEEDED! super skunk leafs with tiny brown spots, spreading?

[R-L-B BinGall Rec.]

Hi fellow growers.

My setup is a 6sq meter balcony enclosed in glas

Better safe than sorry lights 2x 125w cfls.

Strain superskunk (27 of them) in soil
canna tera neutrission plan

I have had 1 day with over heating around 34c for a cupple of hours

I ran in to a problem some week ago, about 2 weeks in flower.

the bottom leafs on a cupple of plants started to get smal brown spots, i was shure it as a p-k diff
so i boosted the next wash with ekstra neuts.

but it dossent seem to help couse the spotted leafs just keeps on spreading...

what is it and what can i do to save my crop???

R-L-B BinGall Rec. Reviewed by R-L-B BinGall Rec. on 07-10-2011. HELP NEEDED! super skunk leafs with tiny brown spots, spreading? Hi fellow growers. My setup is a 6sq meter balcony enclosed in glas Better safe than sorry lights 2x 125w cfls. Strain superskunk (27 of them) in soil canna tera neutrission plan I have had 1 day with over heating around 34c for a cupple of hours Rating: 5

[Gone-Phishing]

Looks like a possible Phosphorous deficiency. Plants use high amounts of P during flowering.

[R-L-B BinGall Rec.]

Thats what i thaugt.

But i currently use 30ml of canna tera flower neut every other wash (in 10l water)

Plus i add 5ml of p-k 1314 (slowly increased from 1,5ml from first week of flower)

but they still look sad?

shuld i use more p-k 1314 additive or is my plant problem caused by something els???

[Gone-Phishing]

what size planters are you using?

[CrackLemonade]

please fill out trouble shooting form to let us get the whole picture.

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Soil Grows-

novice

Your Equipment:
1.) Type and wattage of lights. (2x 125w CFL's)

2.) Distance from tops? (40-50cm)

3.) Reflector type? (1 cool tube, 1 bat wing)

4.) Is there a consistent fresh air supply? (yes its a balcony)

5.) Do you have an exhaust fan and a circulation fan? (2 circulation fans and i open up the sliding glassdoors for fresh air)

Your medium:
6.) Specific brand and type of soil (some hi brand pree mixed cannabis soil 6-7 ph value)

7.) Size of container (3L.)

Your nutrients and water:
8.) Source of water. (filtered by osmosis)

9.) Method of checking water ph. (ph pen adawa)

10) Method of adjusting water ph. (PH Up)

11) Specific brand and N-P-K ratio for each bottle. List dosages (quantity per L) and current feeding schedule.
(canna tera flores 2-2-4 i watter every third day and feed neuts every other time)

12) Any additives or tea's? (B-Cuzz pk 13-14)

13) Are your ph levels stable, or do they fluctuate?
(all stable but pk 13-14 keep on increasing by 1 untill a max 15ml pr 10L water)

15) Do you foliar feed? (no)

Your growroom:
16) Indoors outdoors? (both its on an enclosed balcony on 8th and top floor)

17) What size of closet, room? (6-10 sq m)

18) What are the temps and humidity levels while lights are on? (25-30c)

19) Noticed any insects in the growroom? (non at all)

Your strain:
20) What strain are you growing? (Indica- super or early skunk)

21) From seeds.

[Gone-Phishing]

Just a suggestion but did you check out your roots because 3L planters seem a bit small for those tall plants, possibly some root lock going on their.

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Same 3l size pots i used in all my setups/grows (for around 200 plants now) and this is the first time i have seen this kind of spottings...
It started of not in the top or at the bottom, but right smack in the middle of the plant.
but only on its larger leafs, after the spots started to show the leafs slowly dryed out, they keept the fresh green coulor but feelt stiffer than normal.

[pushit]

Just a suggestion but did you check out your roots because 3L planters seem a bit small for those tall plants, possibly some root lock going on their.

I agree with gone-phishing. You need bigger pots. The leaves look light green in the pic so im assuming they need nitrogen. The brown spots look like mag def to me. Since you are feeding nutes this means the plant is not taking any in. So I assume lockout. Transplant into bigger pots with fresh soil and i believe youll see a big difference within a week. Make sure your ph is around 6.5ish and you should be good to go. Good luck

[R-L-B BinGall Rec.]

ok it actualy sounds like a root clogg could be the couse of my problem, i just couldent figure out why it showed as a dif when i feed neuts as you wrote.

Thanks alot to all of you, i will try to get some bigger planters and i update you in the results.