Nitrogen Toxicity, Biobizz, Autoflower Help!

[MarioUK]

BioBizz Light Mix soil is an organic peat basedpotting soil mix. It is a blend of all-natural ingredients such as black peat, white peat, compost, worm cast and perlite. It is pre-fertilised, but to an EC of around 1.2, so roughly half the rate when compared to the All Mix

 

[MarioUK]

Anyway yesterday after the pots fully dried out I went 0.5ml grow, 0.5ml bloom, and 0.5ml topmax, also have been keeping a close eye on the light distance. Will report back soon on how they are doing ;-)

 

[Billpopy79]

Should be fine with that dose

 

[MarioUK]

Still a bit of N leaf curl though not as bad so will keep an eye on this also maybe cut back to 0.25ml next time billypoppy? It's gotta be the biogrow

 

[Billpopy79]

Still a bit of N leaf curl though not as bad so will keep an eye on this also maybe cut back to 0.25ml next time billypoppy? It's gotta be the biogrow

As they get bigger they will want more so if it's only a minor leaf curling and no other signs of nute burn I'd feed the same again next time.

 

[MarioUK]

As they get bigger they will want more so if it's only a minor leaf curling and no other signs of nute burn I'd feed the same again next time.

Thanks mate appreciated

 

[MarioUK]

Update! I went with 0.5ml grow/ 1ml bloom / 1ml topmax.. Then the next feed I backed off on the grow (less than quarter of a teaspoon per ml) And 1ml bloom and topmax again.. There exploding! Defiantly good genetics here!! The plant in the corner has slight light burn on tips only (due to me not raising lights early enough and surprisingly not the tallest plant? (last photo) Pheno related? But all are doing well so far.. temps were jumping up past 28c so I have opted to open the flap on the side at lights on along with my Intake bringing fresh air in 1 oscillating fan and have recently put a clip on fan at the bottom of the canopy too.. Have been controlling humidity by contolling the exhaust speed. (To low rh,
Lower fan speed, too high rh, increase fan speed) I haven't had to add humidity and would rather not add moisture at this stage anyway so glad I'm on top of it all. Have a small dehumidifier at hand and also use this when humidity is higher and will use it constant the last 2 weeks of flower to really get that rh down more ;-).. Anyway temps are 25/26c lights on 20c off 40/50% rh. Biggest plant is now 130cm from floor level and lights are literally right at the top of the tent now which is why I backed off the grow more.. Don't want more vertical growth than u can handle haha lights are 18 inch from the top of the tallest plant and 20/22 inch from the shortest *which I have raised slightly.. Could raise a bit more but maybe it will get taller today/tomorrow.

 

[Billpopy79]

Looking great there, you're cruising now

 

[MarioUK]

Thanks! Trying my best!

 

[MarioUK]

It's feeding day and now I'm unsure what to do.. last time as I say I really lowered the biogrow to literally quarter of a teaspoon per ml And 1ml bloom and 1ml topmax. Vertical growth is slowing now and my N toxicity issue seems to be Nomore.. In 3 days it will be 6 weeks since I put the germinated seeds in the soil. One plant seems to be going a light green colour but looks good still does it need more biogrow now? Back to 0.5ml? Up to 1ml? Apparently too much N now can hinder bud development but they still need it right? Also should I go from 1ml bloom and topmax to 2ml now? Help

 

[MarioUK]

Went with 0.5ml grow, 1ml bloom and 1 ml topmax. Update coming, now I have my landlord wanting to come in the next 3 weeks to fit a new boiler ffs I estimate at least 5 weeks left here then a week drying! I will try to put it off as long as I can maybe say I'm off on holiday for a few weeks but if need be I would have to move all my plants into my neighbours (he's a good friend and literally 10 steps away from his door) put exhaust/filter running full blast in his room pumping the smell of these plants out the window then take the tent down hide everything until it's done then put tent back up and move plants back in!! Not ideal but lucky I have this option if they demand entry! Shouldn't stress them as I only have a few feet to walk with them one by one into his room which would be nice and warm, lights usually go out at 11am so if it happens would be in there dark cycle so they can do boiler and f¥×+k off before I set it back up for lights on at 5pm! Worse case scenario but if it happens I'd rather save my crop than get it taken away!!! As I'm in the UK the laws are a bit different

 

[MarioUK]

Reading back though my first post I said they were 11 ltr fabric pots there actually 12 ltr if it helps anyone reading this. Bigger Pot size = bigger plants (If you have the space that is!) I just about have enough for these 9 plants, they have filled the tent though a couple of these would give photos a run for there money in terms of size!

 

[MarioUK]

Bit of an update.. As you can see in the past 10 days the buds have started to put weight on! Exciting times also paranoid times (due to the reason above and the boiler visit seems imminent (yet I haven't heard anything since so will cross that when I get to it but like I say if I have to move them for a day to save my crop I shall have to, although smell moving them concerns me as they stink now! When tent is zipped no smell but I have my exhaust/carbon filter working hard) Anyway back to the matter in hand, I have been feeding 0.5ml per litre of bio grow and recently moved the bloom up from 1ml to 2ml, also the same with the top max.. I'm getting a lime green colour (most noticeable in pic 3) so looks like it needs more N. Shall I go up to 1ml of grow now? There is no leaf curl etc and some bottom leafs are going yellow/ dying. I don't wanna feed to much N though and get airy buds some have taken an Indica dominant shape and approx 4 others are sativa shaped as auto kong 4 can produce 2 different phenos .

 

[MarioUK]

Updated pics 8bweeks from germ.. 3/4 weeks left tops I'd say?

 

[WRL]

Yep just keep the grow low unless they start looking deficient, once you see white pistles coming from the grow tips start on the grow and topmax at the recommended levels.
You can over do the bloom but I've not had a problem at the chart dosage.
The topmax has very little NPK so it won't hurt anything.
I just slowly backed off on the grow for the last couple of weeks.

I think you can help me if it’s not a bother. First time grower, autos . My w/w is exactly 3weeks old she looks great not a blemish. I’m I 3 gallon material pots and 156 litre tub in a tub raised I’m a bit sketchy on my newts, going organic. I have biobizz grow, flower, max , fish blood n bone, Epsom salts mixing 1/4 of recommended doses adding calmag got ph perfect all good there. So the question is have I gone to far and have you any advice for me also got 4 n/l seedlings on the go only given water every 3/4 day’s feeding w/w twice a week do I need to water in between

 

[013]

I think you can help me if it’s not a bother. First time grower, autos . My w/w is exactly 3weeks old she looks great not a blemish. I’m I 3 gallon material pots and 156 litre tub in a tub raised I’m a bit sketchy on my newts, going organic. I have biobizz grow, flower, max , fish blood n bone, Epsom salts mixing 1/4 of recommended doses adding calmag got ph perfect all good there. So the question is have I gone to far and have you any advice for me also got 4 n/l seedlings on the go only given water every 3/4 day’s feeding w/w twice a week do I need to water in between

Hey LRW,

Billpopy hasn’t logged on in about 2 years now.