What the hell is happening?

[Dovram]

Okay, here are my two northern lights bonsai.
HPS 250 w
25C° -50-60%
As you can see the first one looks quietly healthy while the other is actually loosing all its leaves.
The problem is the same for both plants, but in the second one the leaves are yellowing and dying out of control.
What is happening?
I thought about a Nitrogen deficiency since my fertilizer's NPK are 0-17-18 and the plants have been vegetating for about three months always in the same pot.
The other problem of the same plant is that the upper leaves are purpling.
I'm on the 5th week of flowering, what should I do?

Can you please confirm if this is a Nitrogen deficiency? If so, what's the better thing to do? Waiting and hoping it will survive until harvest? Or adding the relative nutrient? Because I've read that it's normal that the plant loses its leaves during this period, but seriously, this is not normal.

Thanks for any help!

 

[Dovram]

Here are the good buds

 

[Bush Dr]

They look like a fucked up reveg ....

Give them N and they'll turn greener but who knows?

Your choice, give them lots of N and let them start again or cut and run...you ain't gonna get much of any quality off that ...it'll taste like shit from all the P & K

 

[Dog Star]

It doesnt look good to me,actually they look poissoned by too much nutes and huge swing in PH made them look like this.

First you need to flush all this excess nutes with lot of water to clean a roots of
all that nutes that made them hell on Earth and then feed third of a dose of
complete nutes,primary,secondary and micro,a pinch of ascorbic acid to aloud
plant breath more easier and that shes easier evaporate water that you flushed her
so she dont fall in shock.

You need to know that even in flowering you need to have nutes that have more balanced ratio of NPK elements,those that start with 0 means there is no N inside and hence this are no good to use as solo nutes,maybe as addition after week 4 or 5 you could
use part of it... but still you need to have N in your feeding formula,and secondary
is very important Mg,S and Ca,lot of defs happening cause of imbalance of this 3,
same worth for micro nutrients,plant maybe dont need much of them but whithouth
them there will be deficiences in your grow.

Everything is important for your plant.. dont miss something as then your plant
will show you in worst way and you will be sad with your harvests.


Wish you best and i hope you learn a bit on nutes so a quality of your harvest
will be on par to those smoke that is proper maded and give you more joy in your
gardening and selfmedicating.


Regards

 

[Americangrower]

It looks to me like you remove all the big sugar leaves.. Those big lower leaves store nutrition for plant to use in flower.
I would say yes to giving her a little N

 

[Budley Doright]

I have to say its .....interesting....

If you add some N make sure its the nitrate type.....

Nitrogen is used by the plant thru most of flowering....

IMO adding N at this point will not do anything...

 

[PdxFarms]

With the base stems that big... in those small pots 3g? Could be root bound. Vegged 3 months in same pot???
Looks like its been whacked at and trimmed back a few to many times. Bonsai or whatever... doesn't look healthy. Either way, id guess nutrient issue for some reason or not whether the ph is off, not sure.

When all else fails, flush flush flush and start back with a low dose of nutes. Make sure your rh, temps and ph are spot on.

 

[PdxFarms]

Some may not recommend this but Ive done it with no ill effects... Id pop the plug from the soil and take a quick look at the roots in a low lit room. Wait until their a little light and in need of water, quick pop out of the potter and take a peek.

Then again, at 5 weeks... she looks like in the state shes in, shell probably try and finish early, maybe even popping out some nanners. Can't really tell from the pics but that might be the case. If so, keep her afloat another week and take it down instead of beating her to death with flooding and nutrient baths.

 

[Budley Doright]

Some may not recommend this but Ive done it with no ill effects... Id pop the plug from the soil and take a quick look at the roots in a low lit room. Wait until their a little light and in need of water, quick pop out of the potter and take a peek.

Then again, at 5 weeks... she looks like in the state shes in, shell probably try and finish early, maybe even popping out some nanners. Can't really tell from the pics but that might be the case. If so, keep her afloat another week and take it down instead of beating her to death with flooding and nutrient baths.

IM with you.... the leaves have been drained of nitrogen.... I dont think they will green back up....and it will produce no new leaves....

You might try some nitrate N.....but I think its too late even for that.....

 

[emeraldcityog]

I would guess you picked up a root disease leaving them in those pots for too long. If you're gonna keep it around, try to notice if you see any similar symptoms on other plants later. I'd scrub the tent with bleach afterwards to be safe.

 

[Medfinder]

Test that run off! ph test and nute test.

Options?


mabie pull and trim roots and put in new known soil.

TDS check water. under 700 balance nutes and reveg.

Get new seeds or clones?