Is this nutrient burn or mag def/lockout?

Unknown sativa just about to start its 3rd week.. lots of deficiencies after going under the hps, lower leaves dropping. Slight tip browning, intervening chlorosis later leading to necrotic spots. Whole leaf eventually goes yellow, with veins remaining semi green and little spots somewhat noticeable. Red stems. Upped the feeding it's in a small ass pot I'm now giving it full strength every watering.. watering till a little run off at this point about every 36 hours, once about top inch of dirt dries out. Leaves at bottom are dropping at this point but don't recover with watering and are continuing to droop lower as days go by. I feel maybe upping the feeding has slowed it down a bit but it's still shedding itself fast. Too early to be losing this much foliage, esp with a sativa. Any thoughts? Cheers fam.

Also of note this seemed to start happpening after I put the plant under hps left home for the whole day and came home to it wilting and the pot dried out, so I gave it a good water as usual and moved on. Ever since, issues. Hopefully someone here can chime in with some solid info. Do you think the plant has severely outgrown its pot and the roots can't keep up with it? Perhaps I overwatered her by trying to compensate for her wilting after being introduced to high intensity light when she truly didn't need it and just needed some time to adapt? It's 5 ft tall in a n 8 inch pot

I can tell you what it is not, it is not nutrient burn. You might have a nutrient lockout but it's not a burn. The leaf yellowing looks like a lack of nitrogen, although your plant looks like it hasn't had enough light. Also being 5 feet tall, it might actually be root-bound in that pot. It's hard to say exactly how to fix this, maybe try transplanting into a bigger pot with fresh organic soil like Promix or something. Feed her some extra nitrogen for now, and more light if you want bigger buds and less stretch.

I'll 2nd that you need at least what they call a 5 gallon pot for a 5' tall plant some people say 2 gallons per foot and other say 1 gallon per foot the 5 gallons pots are actually about 3.6 trade gallons "A trade gallon is a unit of size for standard plant containers in the horticultural industries. A trade gallon is equal to approximately .71 U.S. liquid gallons."

Agree that you need to move that sucka to a bigger pot. I'm of the belief it's a magnesium deficiency, having gone through a very similar situation. If you wanna have a look at my thread it's "Can you confirm this is a mag deficiency?" I just added to it so it should be near the top. Sounds very similar to mine, picked up a bottle of cal-mag and did a low dosage mix in a mister and misted the leaves twice daily as well as used it in my next watering. Came roaring back and they're now healthy as ever.

But I would up-pot immediately. See if you got any roots poking out the bottom. When you do move pots, take a good look at the roots for any signs of root rot, especially if you don't have drain holes in that pot. Hopefully they're nice and white though! And make sure to break up the soil/roots a bit when you change pots.

noobgrowr said:

Agree that you need to move that sucka to a bigger pot. I'm of the belief it's a magnesium deficiency, having gone through a very similar situation. If you wanna have a look at my thread it's "Can you confirm this is a mag deficiency?" I just added to it so it should be near the top. Sounds very similar to mine, picked up a bottle of cal-mag and did a low dosage mix in a mister and misted the leaves twice daily as well as used it in my next watering. Came roaring back and they're now healthy as ever.

But I would up-pot immediately. See if you got any roots poking out the bottom. When you do move pots, take a good look at the roots for any signs of root rot, especially if you don't have drain holes in that pot. Hopefully they're nice and white though! And make sure to break up the soil/roots a bit when you change pots.

Click to expand...

Do you think by any chance your foliar treatment perked them up cause they might have actually been in need of chelated iron? I'll take a look at your thread.. my thoughts have always been to keep foliar to a minimum unless absolutely essential to the plants survival. This may be one of those situations but I feel it's past that point anyhow. I would personally mix a calcium nitrate/Epsom solution if was to treat foliar route.. I don't have can't on hand anyhow never usually needed it/kept plants in pots this long. I have a chili pepper that had similar symptoms in same mix minus the worm poo, runoff came out right acid on the reagent so I flushed it to a 6 after about an hr it had responded overnight with Lucius green growth, so hoping same will be case with this plant. Has been more of an experiment/learning experience than anything but would still like to get something off of her. Already got some seeds off the lower I pollinated with the dank wary fowering. Male I had in the closet so I'm excited to pop those out and see etc they make lol.. probably nothing special and will have been adapted to the 16/8 schedule these plants have grown on in my pepper cab lol. As per mag treatment if done epsoms already, spent leaves won't green up much as they're already past spent, as the plants pretty much trying to just finish it's life.. my thoughts exactly are that it was just a root issue, perhaps start of rot due to having to water the pot so much and I have noticed it has been drinking slower like the roots are choked up. I have a 5g airpot ready for it just trying to get it out had been difficult it won't slide out nice and I don't wanna pull to hard on the root crown and rip it out.. its so spindly I'm scared to try and turn it pause down would have to get on top of a step ladder lol. I checked runoff it is 5.5 hasn't changed after last feeding so I will flush to get it up/feed 1/2 once the pot dries out see what happens. If nothing will pot up. Have run out of headroom top cola is hitting the lamp. Ya the plant has been under cfl on the 16/8 for 2 months, ten just under 2 150w hps.. I agree not enough light for lowers but those are null as they were just used as part of a pollen experiment and the plant just went out of control should have beeen topped sooner.. soon as I put it under hps the deficiencies roared so I think right now it's trying to keenup with adding such more high intensity light and the roots can't keep up.. will do the flush keep you posted and do the repot if necessary hoping not to destroy her. Thanks for input boys

No idea lol I'm a noob, this my second grow. First real good one though, first one was a disaster lol they were both great learning experiences and I've read hours upon hours about this stuff. Only reason I felt qualified to chime in is because your situation looks similar to what I had going on.

You need to re pot it into a bigger pot. The yellowing is a classic sign of root stress being too root bound plus salt builds up quicker in the small pot between feedings causing more issues.

Can you take a pic in blue or natural light?

*BUDS said:

You need to re pot it into a bigger pot. The yellowing is a classic sign of root stress being too root bound plus salt builds up quicker in the small pot between feedings causing more issues.

Click to expand...

Ya was my original thoughts it's plain to see it's pushing its pot lmao but I wanted to see if it was possible perhaps something else was going on and I was taking the easy way out by planning on repotting.That is always my last resort as it seems to usually solve most issues, atleast for long enough to pinpoint cause/get an idea of what's causing problems.. Is there any trick to getting it outta the pot unharmed? I tried just gently pulling on the main stem at the the base and its not budging I don't wanna uproot it by mistake or damage them working around the she's of a pot. Ran a butter knife around the edges with minimal disruption but still won't come out. Thing will fall over if I untie it don't want it to snap.

noobgrowr said:

No idea lol I'm a noob, this my second grow. First real good one though, first one was a disaster lol they were both great learning experiences and I've read hours upon hours about this stuff. Only reason I felt qualified to chime in is because your situation looks similar to what I had going on.

Click to expand...

im New to this too man couple grows aha I just do my fair share of reading and have been advised at my local nursery to do foliar chelated iron for my toms this yr which had similar symptoms

*BUDS said:

You need to re pot it into a bigger pot. The yellowing is a classic sign of root stress being too root bound plus salt builds up quicker in the small pot between feedings causing more issues.

Click to expand...

What are your thoughts on the brown necrotic spots in between the veins/along the margins/tips following the onset of the yellowing? Is this in ur opinion result of the arrested mg/ca uptake or does it look to u like onset of disease which is my main worry I don't have a dehu rh and temp has been high last week after a brief drop in temp so I'm concerned lol

The brown spots are salt burn from the pot being too small drying too often, salt builds up and burns the plant.
When you re pot , water first then after it drains tip the pot upside down squeeze sides of pot, hold the base of the stem and gently slide it out of the old pot, have the new pot ready to go with soil in bottom , water again.

The plant is 6 feet tall fam. Here is an update on the buds don't know if I should still up the feeding at this point was greening up good for a while top growth/those receiving less direct sodium light are a darker pigment then the others, seems to be feeding heavy leachate out the bottom runs 5.8 over 24 hours goes up to just under 7 and stays around 7. Noticed feeding in at a higher ph also increased uptake quickly. Test recently revealed same results. Not sure whether to continue at full strength on a feed, feed, water schedule or up it or slowly start reducing it now. Have a feeling may be getting locked out and a good drench with alkaline water will cause the N level in the plant to spike due to a good portion of the media it's in containing controlled release fertz with high n ratio. Had this happen to a pepper that was on the same stuff but just straight outta the bag.

*BUDS said:

The brown spots are salt burn from the pot being too small drying too often, salt builds up and burns the plant.
When you re pot , water first then after it drains tip the pot upside down squeeze sides of pot, hold the base of the stem and gently slide it out of the old pot, have the new pot ready to go with soil in bottom , water again.

Click to expand...

Also, still in a 1.5g pot haha. Largest cola after top is about a 2l bottle.

Givi said:

Also, still in a 1.5g pot haha. Largest cola after top is about a 2l bottle.

Click to expand...

Necrosis and interveinal chlorosis peaced out after upping the alkalinity of my water source, bubbling my nutrients longer to bring it up around a 7, waterin deeper and on the third input of just water after the feed, feed; allowing for some runoff.

Just pissed about the foxtailin not sure if it's more due to heat in the room being 80+ at some times, or if it's a nitrogen thing.. Now that weather is cooling down temps stay below 80.

Givi, you're doing everything wrong. Looks like you're not listening to what people are telling you.
Buds, you are also wrong. I don't know how you come up with the things you write. You couldn't be more wrong.

Na I'm doing what makes sense if I followed these guys instructions I'd have spent 500+ more dollars to heat my room up to 100 degrees burned the shit outta my plants and ended up screwed. This things a weed man they are annual plants simply let them grow give them what they ask fo, some trial and error learn from the experience. I got 2l sized buds starting to pack on trichs after starting the molasses and they still have like 4 weeks to go lmao

polishpollack said:

Givi, you're doing everything wrong. Looks like you're not listening to what people are telling you.
Buds, you are also wrong. I don't know how you come up with the things you write. You couldn't be more wrong.

Click to expand...

look at the results and improvement from a month ago the mag def has left I followed homies instruction to feed higher I got better results they were hungry.. it's little invested into a quick 1 plant grow in my indoor veg garden. I'd say considering it was just left to do its thing under 80w of cfls topped later on as a last resort and thrown under a 150 I'd say it's not bad. What am I doing wrong other than having high temps, not blasting them with retarded amounts of light esp in veg when not necessary and having not potted up earlier? I'd like to hear your advice if it makes sense at this point I'll follow it. Peace n love

Will post close up of the more mature buds under blue light tmw, plants starting 7th week now I believe, sativa dominant is definite.

Obviously know it should be in a much larger pot, trained sooner and had a bit more light spread out better over it during veg. Can't start over now lol. I think next round I'll try a mix of perlite and vermiculite and just run botanicare with liquid karma. The results on my Hungarian wax peppers have been nothing short of great.