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Back to Grow Questions
Nutrient burn/nitrogen toxicity?
Tubington9
started grow question 4y ago
I seem to be experiencing nutrient burn and nitrogen toxicity, is this fixed by just flushing with PH’d water for the next couple feedings?
Solved
Leaves. Tips - Burnt
likes
ChitownCannaChica
answered grow question 4y ago
Yes! Do exactly that! Major tip burn and curl! ✌️🏻💚🌿💨
1 like
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Selected By The Grower
Similar Grow Questions
Solved
CreamOfTheCrop
Dead spots on leaves
I've been struggling with same problem from beginning of grow, leaves having these dry yellow/white spots. The first week I used too high pH which later I replaced by rainwater - new leaves were healthy, but last night I left tent at 70% RH. Somehow it returned - details in diary
Week 4
Leaves. Tips - Burnt
Leaves. Curl down
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5y ago
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Solved
Acidlabz210
Crispy tips
I put both my lights in one tent and am getting crispy tips and leaves. I’m on day 49 of flower 1st grow so not sure what looks normal
Week 3
Leaves. Tips - Burnt
5y ago
2
Solved
shadycallme
Anyone know what this could be?
Light: MH TS600 (32"); Premixed soil; Watered with unfiltered tap water (PH: ~6.2); 1 feeding of a miniscule amount of CalMag and Micro (AN), otherwise no ferts added. Multiple attempts to grow; Seedlings always started showing this kind of burning and were stunded shortly after.
Leaves. Tips - Burnt
Leaves. Tips - Die
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3y ago
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Solved
JuanHaze_Arg
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Week 3
Leaves. Tips - Burnt
Leaves. Color - Pale
4y ago
2
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Solved
ezgrows4anoob
Issues with leaves. Day 90 total, 30 of flower. Leaves have been getting more and more yellow the past week, with progressively more brown tips.
Vpd has been pretty close to ideal, the pot had 1 gallon less soil so could be missing out on some nutrients? Possibly Potassium? Otherwise not sure what it could be. Does not appear to be N deficiency because the leaves are affected from the top too. What should I do to fix this
Week 12
Leaves. Tips - Burnt
Leaves. Curl up
Leaves. Color - Yellow
3y ago
1
3
Solved
supermegadjj
Situation getting worse. GGrowth almost stopped, leaves growing very thin and small. What am I doing wrong ..? Not the first time this happened. Thanks!
I've posted a day or two ago question about this girl as she slowed down growth and drooped+small leaves +red leaf stem. Today I can see lower growth starting to loose colour and there are some brown spots on new growth... i will flush her today. 3rd photo lower growth
Leaves. Tips - Burnt
Leaves. Color - Yellow
Plant. Stem - Red or purple
5y ago
1
2
Solved
MrTasuri
Nutrient lockout or light burn?
Hi guys. I'm facing problems after problems :/ I changed my soil and some of the plants turned back from yellow to green, which was very nice to see. However, now leafs tips seems to burn and I'm wondering does it look like nutrient lockout or light burn? Thank you!
Week 3
Leaves. Tips - Burnt
Leaves. Curl down
Leaves. Color - Yellow
4y ago
4
5
Solved
Canna_ballistic
Burnt tips and edges
Not sure what's happening, first time seeing this.. The ec went up, have corrected that, ec is now 1.2, ph 5.9-6??, 5 weeks into flower only just started happening
Week 9
Leaves. Edges burnt
Leaves. Tips - Burnt
5y ago
2
Solved
cpavan
Spots on leaves
Hello, My plant is on 5⁰ week of flower and I noticed today this spots on the leaves. That's like be on all leaves. I'm doing a DWC with RemoNutrients. The ppm is around 1000, the ph 5.6 and the light is 40cm above from the plant. Could you help me?
Leaves. Tips - Burnt
4y ago
1
3
Solved
Whitey307
Nutrients burn light burn
Hi all can anyone tell me if this is light burn or nutrients burn. I've marshydro ts1000 2x2 lowered light to 22 inches on 60 percent and upped nutrients from .05 to 1ml a litre so have moved light back to 25 inches 50 percent and flushed with water and calmag at ec 1.0 any ideas
Leaves. Tips - Burnt
2y ago
7
7
Solved
BavarianBarbarian
Week 8 (4 weeks into flowering) - Possible Nitrogen / Cal-Mag issue?
Plants show signs of what i assume to be a deficiency. Stopped feeding nitrogen Week 7 according to schedule. Symptoms are not on every leaf but some the upper foliage. Yellowing, burnt tips and rusty spots. My guess is lack of Cal-Mag & Nitrogen. Is my guess correct?
Leaves. Tips - Burnt
Leaves. Curl up
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1y ago
3
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Solved
JonMauto
Leaf issue deficiency or toxicity
Hello everyone, having a slight problem diagnosing this problem. My 1st grow in coco/perlite. Ph is 5.8-6.1 of feed @ 1.1 ec Is this nutrient lockout? I’m thinking manganese or potassium problem…………really don’t know.
Leaves. Edges burnt
Leaves. Tips - Burnt
Leaves. Veins - yellow between
3y ago
4
4
Solved
jokgga
Does yellow leaves with red tips mean my plants need more nutrients or less? Jacks 3 2 1 on Auto
Week 8 (flower) top leaf tips are reddish and the leaves are more yellow than green. Does this mean that my plants need more nutrition? I am using Jacks 3 2 1 for two autos and using it at 65% strength (650PPM / 1.2EC). Should I goto 100% at 990PPM / 1.9EC or 50% to 550PPM/1EC
Leaves. Tips - Burnt
Leaves. Color - Yellow
Leaves. Other
5y ago
1
2
Solved
a_tribe_thats_stoned
Brown and yellow leaves help me get my plant healthy plz
My first time growing and my clone has started to get these brown dots everywhere. Now some of the leaves are dying and it’s getting worse. Online it says it could be mildew or a calcium deficiency.
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3y ago
3
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newenglandgrowers
High EC and PH
Light brown spots forming in the side of the leaves and red tips coming from the new growth on the tops, did about a half strength feeding today at .4EC ph 5.5 tested the runoff it came back at .7EC ph 6.3. Growing in coco coir currently day 34 using GH floraseries, and calmag+
Week 5
Leaves. Tips - Burnt
Leaves. Other
3y ago
4
7
Solved
FLOGROWNDIARIES
Leaf browning
My plant is growing a couple brown spots. Any idea what can be causing that and how I can prevent it from getting worse?
Week 4
Leaves. Tips - Burnt
Leaves. Color - Dark-brown
3y ago
1
5
Solved
chuggerguy
Yellow tips on new growth? Some clawing too.
Newbie here. It's the plant on the right. Fast Buds Gorilla Zkittlez Auto. Age 31 days. Fox Farm Ocean Forest. No feed until 2-3 days ago, then 24-8-16 blue, 0.8g/L. Light, 18/6. Started at 25%, now up to 100%. DLI about 80 per Photone. I flushed yesterday after noticing.
Leaves. Tips - Burnt
2y ago
2
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Solved
L_Tetragrammaton
Leaf Edge Yellowing
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Week 5
Leaves. Tips - Burnt
Leaves. Tips - Die
Leaves. Veins - yellow between
5y ago
5
2
Solved
AlpAge_Cino
Discolored, burnt and curled up tips on higher leaves
Several symptoms, always on tips of higher leaves : they are discolored/burnt or burnt/curled up. LED @40cm (deemed 70% of 300W) and I just gave them the 2nd flowering feeding, 4 days after first one (pots were very light). I was planing to start compost tea... What should I do ?
Week 4
Leaves. Tips - Burnt
Leaves. Curl up
Leaves. Color - Pale
2y ago
3
2
Solved
TheBluntBeauty
Tip burn
Wondering how to go about this tip burn it seems to be just on upper leaves and none of the others in with her have Tip burn so I’m thinking don’t worry to much about it .. opinions please
Week 5
Leaves. Tips - Burnt
3y ago
1
3