By continuing to use the website or clicking Accept you consent to our cookies and personal data policy. For details please see Privacy Policy
Accept
Nitrogen Toxicity?
Findtheloraxstarted grow question 3 years ago
Nitrogen toxicity? What does this look like to you? I gave a full set of nutes 3 days ago and it looks like the spots/yellowing are getting worse. I watered today with plain ro water ph 6.8 until runoff and tested it, ppm was over 900 ph was 6.2.
Solved
Leaves. Curl down
Leaves. Color - Yellow
like
Lisaleezaanswered grow question 3 years ago
Given where the plant is in flowering, I would say that this looks pretty normal and my plants certainly have a few leaves that look like this. If it were a N problem I would expect more signs of it on the other leaves, which look OK to me. The yellowing leaves will not recover and will only get browner then fall off. I remove them to let light through. At this stage, the plant is not going to miss them. Good looking plant and happy harvesting!
Findtheloraxanswered grow question 3 years ago
They are autoflowers in fox farm bushmaster soil. I fed them 3 days ago with 6.3 ph water, 5ml/g calmag plus, 5ml/g fish shit, 4ml/g hyshield, cutting edge nutrients 8ml/g micro, 20ml/g bloom
like
Complain
m0useanswered grow question 3 years ago
the spotting looks like it may want some extra calcium but no idea of your medium composition. or if your giving CalMg
Also don't know what your feeding them with. If the runoff is 900ppm and no feed was in the water that to me says it was a salt buildup causing lock out. Would also explain the drop in PH on the way out.
If its soilless your PH of 6.2 is good. if its soil its to low. if its an auto 900PPM is a bit high.
I don't see nitrogen toxicity, that looks like dark green shiny leaves that tend to bend downward at the pinnacles and can be more brittle.
Best Of Luck
1 like
Complain
Similar Grow Questions
Solved
kitchenfarmer
Deficiency & delayed flowerHi, so the little one from my previous question made it against all odds (the one in the 2nd row left):P Nearly all plants look a bit under the weather & 2 of them (Front left&the one in the back) have not started to flower yet while the others are at it since like a week or 2?
Leaves. Curl down
Leaves. Color - Yellow
2 months ago
1
Solved
tuliobernardo
What may caused the issuesChecked the runoff and confirmed 6.2PH and 130 ppm on water.
checked on my Tank and same was happening.
so gave a 603 ppm solution of cal/mag. Grow A+B perfect pH connoisseur, H2O2 at 5.8 pH.
Will await for results.
i think at week 3 theyre supposed to eat at least 600 ppm?
Leaves. Tips - Burnt
Leaves. Color - Yellow
2 months ago
2
1
Solved
Ryuko
Yellow leave tips?Sooo I found that some of the leave tips are getting kinda yellowish dark and im not too sure if its the light thats not high enough or why this is happening.
Humidity is about 55% and temp at 23 Celsius
Thats not only happening on 1 or 2 leaves almost every leave has that
Week 18
Leaves. Color - Yellow
2 months ago
3
2
Solved
XtoVall
Problem in 5 Week of VegetationNow in the 5 week of vegetation. The plants are Tropical Gelato cuttings. Everything was great until recently. They looked great.
After another light fertilization, the condition of the plants continued to deteriorate. Soil PH value is between 6 and 7. Can Someone help?
Leaves. Curl down
Leaves. Color - Yellow
2 months ago
1
Solved
HowsItGrowingHydro
Burn? Deficiency? Hydroponic fgrowproblems in DWC. I am using TA nutrients (Lucas formula). Running EC 1.8 and pH 5.8. One of my plants look good but the other plant shows lots of problems. RH is 55%, Temp 25-26C. PPFS is 450μmol/m²/s on average. Any idea how to fix it? Dilute the nutrients? Ideas welcome
Leaves. Edges burnt
Leaves. Curl down
Leaves. Color - Pale
2 months ago
2
Solved
GermanBudzz
Maybe PH Lockout?Hello everyone, can you maybe help me? My Black Cherry Punch has some kind of problem. I suspect it’s a nutrient lockout caused by the pH value. I flushed it two days ago, and the drain had a PPM of 1000 and a pH of 7. The plants are at the beginning of the 2nd week of flowering.
Leaves. Edges burnt
Leaves. Curl down
3 months ago
1
Solved
geeseeds
This margin curl appears to have spread from one plant to 2 of the other 3. So I assumed not pH, not lockout, not nutrient based. Roots all great. I've culled the 3 and there is 1 survivor doing well but what was this? In the diary I mention using Temprid FX, Neem, Spinosad.
3 months ago
2
2
Solved
JandMGardening
Starting to yellowSo I had good growth up until 2 days ago when the one plant started to yellow. I had them going 24 hours a day and I got grow dots mixed in the bottom two thirds of the pots. Could this be light stress? or could it be hungry?
Leaves. Color - Yellow
3 months ago
1
7
Solved
Nobody_NoMee
Nutrient DeficiencyWhat Deficiency’s are these ??
Using Coco+Perlite with earthworm castings and feeding with Fox Farm Nutes following the feeding schedule with CalMag every time I water at 6.2-6.5ph every other day. 1000ml of water per plant. All four clones have been fed the same since I got them
Leaves. Color - Yellow
Leaves. Color - Dark-brown
3 months ago
4
Solved
Gg6266
Please Help?Seit 7 Tagen in der Blüte.
Mangelerscheinungen?
organic grow
Leaves. Color - Yellow
3 months ago
2
4
Solved
MinorMonster
leaf colourHi everyone.
Recently i found two or three leafes changing colours and looking bad. I would be happy to hear your suggestions, what deficiancy is that? Its only on the leafes at the bottom of the plant.
Thanks in advance
Sorry for my english, deutsch geht auch
Week 7
Leaves. Color - Yellow
3 months ago
9
3
Solved
LilCeeDaWeedGod
Help! Discoloration in second set of true leavesYo! A lil help please. On about day 19 with this DBHP and just experiencing some discoloration on the second pair of true leaves. I was told by the breeder that she is a magnesium whore and have been supplementing every other watering. Just trying to diagnose early.
3 months ago
5
5
Solved
DibbyDab
Advise to flush or feed in VegDoes this is look like a nute burn, deficiency, or ph problem? The two plants that are growing a tad taller have had yellowing tips some curling downward. Don’t want to overreact and cause it to worsen, they’re looking healthy otherwise. Any advise whether to flush or feed?
Leaves. Curl down
Leaves. Color - Yellow
3 months ago
4
Solved
Nigs4200
White spots on a few leavesAny idea what these whitish yellow spots are? They appeared overnight. I'm growing in ffof with perlite and ewc. No nutes added yet, just bush doctor cal mag at half dose 3 days ago with great white, recharge, and photosynthesis Plus which was the last watering of 1.2 liters.
Leaves. Color - Yellow
Leaves. Other
3 months ago
2
2
Solved
question_a_pig
Should I do full flush til runoff is 300ppm?So, it is obviously a deficiency, which probably caused by a lockout. Will the full flush solve it?
Yesterday I fed her a full dose of flowering nutes. Including K. It didn't change much. Lower fan leaves continue to go yellow.
Today 3L water, pH:6.2,
runoff:0.6l, ppm:1450, Ph6.0
Leaves. Color - Yellow
3 months ago
4
3