Nitrogen def. in 12/12

I've got yellowing, spots and purple stems developing in my three ladies. I'm pretty sure it's a N def.

What's the best way to give them a nitrogen boost without burning them? Foliar feed them, or feed through roots?

markyfunk said:

I've got yellowing, spots and purple stems developing in my three ladies. I'm pretty sure it's a N def.

What's the best way to give them a nitrogen boost without burning them? Foliar feed them, or feed through roots?

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any cupping leaves?? if so i'd foliar feed with nitrogen-enriched magnesium sulphate (epsom salt) and see if that doesn't clear it up.

yes for sure some leaf cupping (down). Will any epsom salt work? Like the stuff i can fid at a WalGreens?

Cant the cupping be from over watering as well?

Ive actually encountered a nitrogen deficiency on all of my grows-

Im like 6 weeks into flowering right now and I had some MAJOR yellowing-every single leaf!!!

this is what I did- it may sound tough- so beware!!

add a tablespoon of your VEG nutrients- haha, stupid, yet so easy... lol

Every leaf on my plant went back to a beautiful green- no bullshit...

forget going and spending more money if u already have the answer in your closet...

GraF

tablespoon per gallon? Thanks! How soon was the reaction?

its gonna take a week- at least...

just keep using your regular bloom nutes as you normally would, just add some grow nutes to it..

My plant seemed stunted until I did this- as soon as it started taking them in it started to blow up again- and turning the leaves back to green!!!

I was honestly very suprised to see that they went back to a bright green- I was very pleased seeing this, as I could not pinpoint my def.-

I thought it was an -N- def. some thought it was a potassium def.

so how did I clear it all at once??? some Peters Jacks Classic 20-20-20

5 bucks at the greenhouse too easy- all u gotta do is just do it

GraF

GraF said:

its gonna take a week- at least...
so how did I clear it all at once??? some Peters Jacks Classic 20-20-20
5 bucks at the greenhouse too easy- all u gotta do is just do it
GraF

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Good Advise!!! I agree with GraF....Jacks Classic is my preferred fertilizer....

I have found Jacks to be most effective in adjusting nutrient deficiencies either with foliar feeding (in veg) or standard root feeding in soil.
For some plants in flowering I will mix 1/2 tsp of Bloom and 1/2 tsp of 20-20-20 in a gal of water and alternate with straight Bloom feedings.

Actually if you're pretty far into flowering, yellow leaves with spots may be nothing to worry about. Especially 6 weeks into flowering, you're almost done and ready to harvest. The plant knows it's going to die soon, so that's what it starts to do. Adding high N nutes might not do anything, except waste your nutes and make your weed taste like fertilizer.

If you're early in flowering, then yes you need to fix the N deficiency. But if you're close to harvest, don't worry about it.

pseodonym-

Thats exactly why I stressed the fact that my plants growth was basically stunted until I fixed the deficiency- I was six into flowering and my shit halted-

I started heavy feeding with more veg. nutes and my plant blew up... new hairs everywhere- new callyxes- and new "bud leaves"

So now that Ive figured this out- I think that it is a little misleading when people say not to worry about it- follow it or not, its up to the grower- but why not fix the issue??

and a good way to avoid the fertilizer taste is flushing- just so you know

Graf,

It's very common for growers to stop using nutes close to harvest, so my statements were not misleading at all. Perhaps the reason your plants "blew up" was unrelated to you feeding them heavily with high N value fertilizer. My plants blew up with hairs too right before harvest, and I wasn't giving them any nutes at all.

But do what you want, if you feel it works for you and you've seen the results you want, then why argue? But the point of these forums is to generate several points of view. I offered mine based on my experience and you've offered yours based on your experience. The OP can choose for himself what he wants to do. I just thought I would save him the trouble of wasting nutes and having a smoke that tasted like the garden section at Wal-Mart.

pseudo-

Im not sure if you misunderstood or what......

What Im trying to say is.... If you let a deficiency go to far it could turn into a major issue..

When I was not as experienced with growing I also told people that you could leave it w/o treating it- (nit def.) thats what I read- and thats what I was giving the answer on- what I had READ.

Now, having more hands on experience, I can tell that leaving deficiencies- even in final flowering phases- Is not the best way to grow your weed- fixing it is.

So, next time that you have a deficiency in week 5 go ahead and do nothing- maybe you will be lucky enough to encounter lockout... have you heard of that?? if not, do a search on it.

Im sure you read its okay to leave it untreated... thats fine, I used to give the same advice.... based on what I read.... Now hands on is a little more informative than just reading.... so, if someone tells me that they have a NIT. DEF. Im going to tell them to fix it.... why? because I have had better outcomes fixing the issue- thats why.

1 more thing--- your plants WILL NOT taste like wal-mart plants if you FLUSH THEM.. take care, and watch out for your plants to halt when all of your leaves go yellow and curl in.

GraF

Lockout? What's that? Is that where you put a padlock on your growroom door so no one can get in? That sounds like a great idea graf, because I don't want anyone stealing my plants!

Not only do I read that it's ok to not do anything about N deficiency in the final couple of weeks of flowering, but I've actually done it. And (surprise) everything works out fine! Now if you see yellowing leaves anytime before your final weeks, then yes you have a problem and should fix it.

I think you misunderstood my original post because you did not realize that I advised him to not waste his nutes IF he was almost finished with flowering. He never specified how far along his plants were, so I ADDED to your advice; I never negated it. If he's in week one and does nothing, then yeah...he'll be fucked.

About flushing: you flush when you're a week or 2 away from harvest. That was my point. You can't flush if you keep on adding nutes, that defeats the entire purpose of flushing.

Again, you misunderstood (and apparently misread) my entire post. I gave him advice based on the assumption that he was around week 6 of flowering. Since he never indicated how far along his plants were my advice was in addition to, not in lieu of, your advice. So next time please read thoroughly so we can avoid a mess like this, alright?

Here's something I noticed....I just switched my light to 12/12 on Sunday. Now...after 12 hours of darkness....I see yellowing....mainly at what looks like budsites and a few leaves. There is a little yellowing on the bottom leaves...but thats normal as they dont get as much light.

Anyway...when I turn the lights on fr the day...after about 4-5 hours....the color goes back to the normal green.

Im far from an expert....but in my case.....I think the plants need the light for photosynthesis. In darkeness they cant make it happen. When the light goes on....they can do what they need to do. I just started flowering so this may not be what you're seeing.

GraF said:

Ive actually encountered a nitrogen deficiency on all of my grows-

Im like 6 weeks into flowering right now and I had some MAJOR yellowing-every single leaf!!!

this is what I did- it may sound tough- so beware!!

add a tablespoon of your VEG nutrients- haha, stupid, yet so easy... lol

Every leaf on my plant went back to a beautiful green- no bullshit...

forget going and spending more money if u already have the answer in your closet...

GraF

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Hey GraF, question for ya. Im about to enter the 7th week of flowering on Wed. and I think my oldest baby is going to be going for at least 9 weeks based on the resin heads. So would it be ok to add veg. nutes with a ratio of
7-4-10? Every leaf on her is yellow, and I feel like you said its not getting to her true potential. How much should I add next water, and did you say add it with bloom ferts also?

Okay, all my leaves were yellow too,

I added 1 tblspoon w/ my 1 tblspoon of bloom nutes.... 1 bloom 1 veg

thats all there is to it...

do it every week..

and then your green leaves will come right back to ya...

no matter what pseudo says..... this works for the better. period.

dang it, my leaves are yellow........










yellow? well then what is THIS???????

LOL

fox farm said to do the reccomended doesage of each bottle and miz it together

My first grow I started going yellow about 5 weeks into flower. I wish I would have corrected it. I ended up losing almost every one of my larger fan leaves and that could not have helped matters during the last 3-4 weeks of bud development. Of course I made every mistake except watering with bong water.

New grow is going fantastic and I owe it all to about a dozen people on this site. GraF is definitely one of them.

my leaves turn yellow during flowering. i add nitrogen. my buds show regrowth and stretch from the nitrogen. my leaves still yellow. i don't get it. i'm more than happy with the final results. but my leaves still turn yellow.