Nitrogen toxicity relatedness to dli

Good morning OG! This is a royal gorilla from RQS. This is one of 6 strains growing that all get the same nutrient regimen. Right now they are on 2 teaspoons of tiger bloom every other watering. They are all under a Gavita 1700 and recently switched to 12/12. They drink rain water at an adjusted ph of 6.5, and are in grow big miracle grow soil. ( which i know is not great) She is off to the side with an approximate dli of 23 to 25 depending on where your measuring. Previously they (all plants) were getting as much as 57 dli during veg. I know that was way too much. They grew as i was busy with life, and i did not realize the exponential increase as they creeped closer to my light. My bad. I noticed what appears to be nitrogen toxicity and made the following changes.
Moved everything to the side for a week to recover, pruned and defoliated, switched to 12/12 a week ago. Everything except the royal gorrila responded excellent and continued feeding and receiving approximately 43 dli under the light. My question is am i exasperating the toxicity by moving her off to the side at a decreased dli? Because she received no additional nutrients for 2 waterings, and then received a light feeding compared to the others and actually seemed to claw a little worse, even on fresh growth. Should i put her back in the limelight and let her rip? The Gavita is new to me, but i did flower with it last run and was very pleased, however, it proved to be way too much during veg, for i did not get a dimmer initially. Again just me being lazy, because i have other lights that work great for veg. This Royal Gorilla is from seed, but my others are clones, so maybe her root system is more effective? I expect some differences growing multible strains, but it seems like she is very sensitive to nitrogen. My thoughts were if she is at a decreased dli, then she is not using as many nutes, so my caring has made it worse. I wish i could post all great pictures, but that would never help me learn. I’m humbled by the amount of knowledge as i browsed through old posts yesterday. Thank you.


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I dont think this is a DLI issue but others can correct me. My guess would be the MG soil is kicking out more N . Is this MG soil the slow release bag?

I’d flush and let them dry back to see if the clawing reverts. Than proceed with TB feeding. Personally I use TB but only 1/2 teaspoon in one gallon mixes. I go with the less is more to avoid the potential issues of overfeeding.

@MissinBissin Just corrected some clawing. He may have a more detailed way of course correcting the claw.

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@buddy311 I have a gavita 1700e… what gavita are you running? Whats your temps/humidity??

Edit i see you’re running the same light as me…

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I struggled for a whole year trying to understand what my issue was… in veg it wasnt enough heat… i needed to up temps to around 78 -80 f…

Then flipping to flower… i cannot seem to make it above 80 percent power… i get issues when i try…

Id suggest keeping the light a little extra distance since no dimmer… but temps are usually the cause of problems… another thing i found… is feeding under this led seems a lesser need than other lights… in other words you can feed lighter than you think… my assumption of why this is , is because the gavita causes very fast growth… faster uptake… as long as temps are correct…

If you look in my thread i do get some droopy leaves but each time its been overfeeding…

Im interested to help find your issue being is we have the same light brother…

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I had the same strain go herm on me an sully all the girls in my 4x4.
This happened to me about 4 years ago.
I thought it might have been enviromental, but after reading a thread at ICM, I found out I was not alone. This strain is known for herming. By the time I figured it out, the damage was done. I had almost 2000 seeds on 6 fem plants. Aside from your woes with this strain, be very watchful for herm tendencies. Have I bought from RQS since? Nope. Will I buy from RQS again? Nope.

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Another RQS fan… yeah, me too… :roll_eyes:

{I swear they put the interns in charge of their breeding programs…}

Cheers
G

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Well Thanks @InTheWoods but I’m not out of the jungle yet lol.

Cutting back nutes and a Gently Flushing kind of approach have steered me into a N deficiency.

And I’m letting the plant dry a little further between waterings.

Tough read right now but its about making the change and being patient

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@InTheWoods
Thank you. Yeah i was embarrassed to say thats the soil i use, and do have the feeling it at the very least contributed to this.

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@Terpsnpurps
Nice to meet somebody running the same light! My temps now are 74/63 on 12/12, but when the problem presented itself i was 83/ 70 and 18/6. This was my first time vegging with the light, so your information about feeding is valuable me. In flower the light performs excellent, as im sure you have experienced. I was a little jaded to be stuck buying a master controller just to dim her. My son offered to wire a potentiometer in, so i may let him loose on that. During the winter is historically my best time to grow in my IL basement, or at least it has been. I’m going to look at your thread later today, and appreciate the input.
@belleswell
Hey thanks for the strain information RQS doesn’t publish! I also trashed a whole grow when a green crack hermied. In my case it was the darn light on my power strip. I do know what to look for though, and appreciate the heads up. I dont feel like im advanced enough to weigh in on RQS breeding practices , but agree in i could have picked a better supplier. Honestly the clones i have sourced from fellow growers are performing better right now.

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Hi buddy311!

I am New here, but NOT a noobie by any means.

What i SEE has nothing to do with RQS, except the Fantastic growth. The problem you are experiencing has to do with water/wetness known as Overwatering. Overwatering is NOT just too much water below, but also environmental. I Believe your attempt to fix what appeared to be N Toxicity, DID help by reducing humidity.

Your Best solution, IMHO, would be to increase your Airflow in the tent to increase evaporation of the leaf transpiration. More Defoliation would help as well.

It wouldn’t hurt to Google “Overwatering” because there is alot of Great info out there with pics, and helpful solutions for many different parameters.

A few small adjustments, and you will be :smiling_face_with_three_hearts: Happy!

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What is your ppm on the 2 teaspoons of Tiger bloom nute mix?

I’d look to being overwatered or overfed prior to blaming MG potting soil for your issues. I know it’s a popular “bash” online but the fact is you can grow weed just fine in it.
Give them straight water after they dry out a bit and see if she gets back on track.

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Yeah for sure i use tiger bloom as well…

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Yup i steer clear of most seed banks and stick with certain breeders… so far its bog bodhi and some og members like @JohnnyPotseed and a few others…

I learned a hard lesson about certain companies… do your research before you give some of those bastids your money lol… some do not deserve the support…

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Lol well… at least a N deficiency is a mobile nutrient… so id say you’re outta the woods… wouldn’t you @InTheWoods

Lol just thought it was funny the dichotomy there…

:rofl:

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Nothing to be embarrassed about brotha, We all start somewhere. Hope it all the insights help you steer your ladies out this little hiccup and back to that happy medium.

:joy: too easy

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@willie Thanks for saying that about MG, because i have had success with it, and being in a rural area kinda limits my choices. I have never measured ppm. I did a search and see an “ec” meter, and also ppm. I ordered one off Amazon, so i will have that soon. These are things i want to learn, thank you.

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@Moose Thank you for the reply. I try not to blame breeders for issues in my grow. Imho if the seed sprouts it’s on me. If it sounded like i was trashing RQS that was not my intention. I have 6 other strains growing in the same conditions that are doing well, and this issue was only present on the Royal Gorrila. If anything i think it was underwatered. Im not sure how that effects nutrient uptake, but have read it could? Thank you😊

Okay upon reading my message maybe I was leaning towards trashing RQS. To clear the air they were prompt, nicely packaged, and very vigorous. I smiled when you said defoliate, because i just did a few days before switching. It has grown like crazy, and could potentially be one of my best yet once this clears.

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The Bloating and Cupping leaves indicate too much moisture. Defoliating and opening the undercarriage, & increasing airflow Under the plants will most likely correct the leaf Physiology. And it Can cause nutrient uptake problems.

I have No affiliation with RQS or any seed company. I just DON’T Believe they deserve any flack over Your Environment. She is showing Vigorous growth and looks Amazing! :heart_eyes:

BTW… my Mentor that helped me start growing, used MG soil, and grew HUGE, TASTY Budz! :heart:

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I’d bet it’s because you’re feeding them in 2 ways.

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Y[quote=“Moose, post:18, topic:171175, full:true”]
The Bloating and Cupping leaves indicate too much moisture. Defoliating and opening the undercarriage, & increasing airflow Under the plants will most likely correct the leaf Physiology. And it Can cause nutrient uptake problems.

I have No affiliation with RQS or any seed company. I just DON’T Believe they deserve any flack over Your Environment. She is showing Vigorous growth and looks Amazing! :heart_eyes:

BTW… my Mentor that helped me start growing, used MG soil, and grew HUGE, TASTY Budz! :heart:
[/quote]

@Moose You did initially view the plant after recently being pruned and defoliated, so what you saw is probably spot on, but a few days previous. I’m pretty sure it was just a delayed reaction; such as, i made adjustments and a week later i am still seeing toxicity, which led me to this forum. My question was strictly related to dli and whether or not moving her out of the light made things better or worse. I dont have alot of money to make my grow room a laboratory, or buy the latest measurement gizmo to try and decode what’s going on. I do not own a ppm meter. I just spend every morning and evening with these girls and try to listen. I have litmus paper, a rain barrel, a ppfd meter borrowed from a camera bag, and paitence. So i kinda feel ultra low tech compared to my peers, but imho have grown some decent herb. I am going to start a journal on these to inspire other broke mfers like myself it can be done just by interacting with the plants. I appreciate the conversation and the reply. I didnt tell anyone, but this is my baby, hence the reaching our in hopes of making her better. Og kush grows itself compared to this royal gorrila!:smiling_face: I just got done defoliating again, so here is your result. I will start a journal and see where this leads. I promised myself i was going to listen to advice, so here she is defoliated and flushed. Under the big light @approx 1100 ppfd. The royal gorrila is back left. The lh front ( last pic) is actually a free OG from RQS.






and the dog

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