Brown mark on leaf northern lights x big budd

[sam2016]

Oh and I use bottled water

 

[Waira]

I'd say time to ramp up to full bloom Sam, if you're not already,.. hopefully this might help slow the stretch down some, reducing the N inputs... How far away from the lights are the tops? Look into super cropping, basically kinking the main stem, making an "L" bend,... sounds dicey, but done right the conductive tissues will be fine,... or start now with serious bending, tie-downs, which can be adjusted more as the stem relaxes and works with the bending,..
...add 2ml/L of the Ca-Mg for a few rounds, just to boost levels some, and we'll see if it helps,...this, and the increased P from the bloom should sort things out,... is it progressing still? ...... Just as a back-up, can you get a stronger bloom fert's, a PK booster or something? I use very dilute synthetic bloom nutes sometimes on an organic grow, when I see trouble starting and it's slow to correct,.. organics are slower to respond, usually needing the soil herd to break things down into absorbable forms,...won't ruin anything or hurt the 'crobes when used lightly, and the readily available forms will speed what's needed in there sooner,...

 

[sam2016]

Feeding time now @Waira , I have plagron pk 13 14 , I'll add this as well and up tb cal mag and we will see what happens but no its not getting any worse pal , thanks again

 

[sam2016]

Fed again tonight I have noticed the marks on some of the other leaves as well , I'm still giving 4 bloom 2 pk1314 and 2 cal mag per litre , could it take a few days to see an improvement do u think ?

 

[Heavily Medicated]

I would bump up the P/K a little more. Sure looks to be P being sucked up as she transitions into full bloom.

 

[Waira]

yeah, as mentioned organics are slower,.. have you checked the pH in-pot yet? Might be time to eliminate a lockout situation,... best for this is a good soil probe, like the Accurate 8,..otherwise a crude run-off test will have to do,.... it's not accurate, but if it comes out way off, we'll know at least if this is potentially the situation,...

 

[sam2016]

Hey guys sorry I haven't posted in a while but we had a death in the family , I have kept on with the pk at 3 ml per litre and full strength bloom at 4 ml per litre , I used cal mag for 2 weeks and all seems to be well in the garden again , I've uploaded some pics , much better looking ladies now , thanks again guys , we will b 8 weeks old tomorrow

 

[Waira]

sorry to hear about the passing of family Sam, condolences mate,...

.... looking phat my man! Nice job on steering out of the skid- ... still some fattening to go, so carry on for now,.. do you have a strong magnifier, at least 10x? You'll want to scope out the trichomes for their color changes, along with the pistils drying and leaves/sugar leaves fading out,.. the trichomes are the best measure of ripeness, the rest are best used as markers to start watching trich's more closely,.. immature trich are clear; cloudy/milky, are ripe; ambering is late ripe to past ripe, color comes from THC degrading into CBN, an mildly psychoactive cannabinoid with heavy-sleepy affects,.... how much amber, if any, is a personal choice depending on the type buzz you like, and the general genetics/known effects of a given strain,..... personally, I don't really want heavy narco effects in general,.. maybe 1 strain chosen for it's known couch-lock buzz, and even then, I keep ambering below 10-15%,... in the more "Sativa" -buzz strains, energetic, uplifting zippy buzz, I take them when mostly all cloudy, low % ambering... other folks let it get well over my preferences, so best ask around about your strains and see,...

 

[sam2016]

Thanks @Waira , such an informitve reply . It seems to be in the transition period from veg to bloom that I run into difficulty , same last time , yes I have a 60 - 100 x microscope for checking the trichs , I'm feeding full bloom 4ml per litre and pk1314 3ml per litre and once a week I add 2 ml of bloom per litre for an n boost , I'm guessingbthey will go 12 weeks so 4 to go , so should I feed for 2 weeks and then just water for the last 2 ?

 

[sam2016]

Sorry I meant once a week I add 2ml per litre of veg nutes