What kind of deficiency is this?
Ezzjaybruhanswered grow question 5y ago
I believe this is potassium deficiency.
K deficiency causes internal temps of foliage to rise and it causes the protein in the cells to burn and degrade. Usually happens on the edges of the leaves.
Similar Grow Questions
Solved
Kush_queen
Advice/help needed any suggestions nutrient deficiencyHelp I had some leaves at the bottom of the plants go yellow so I got calmag and used 2 ml per litre as suggest I have given them that twice but I am still getting some claw leaves and some of new leaves look yellow at the tip tiny amount? How often should I give calmag?? šš
6y ago
3
5
Solved
Ionic20
Phosphorus deficiency getting worse?Near enough every leaf is damaged now, all the new growth appears to be dammaged too and very yellow. Am I going to lose my first plants?
Leaves. Curl down
Leaves. Color Ā· Yellow
Feeding. Deficiencies
6y ago
8
9
Solved
Cannabingrowin
Leave colors on 3 week old clones blackberry Kush in Coco coir and a jiffy diskSudden yellowing and discoloration of a e or 4 week cutting. I water it when I see the Coco getting a little dry. I make sure there is at least 20% of run off water. I watered with pH corrected water to pH of 6. I also add a small amount of canna bioryzotonic for their roots.
5y ago
3
9
Solved
Maddiq
Overwatered cubes in hydro? Too close to the sun? or effect of having addHi All, I have issues with my first hydro grow - i effed up. I think i was too slow in the transfer over in the tank. Light is 200 PPFD, EC at 0.6, and barely added any nutes.
Did i manage to overwater some of these plants by having them too close to the net pot?3y ago
3
Solved
BruceBlack
Yellow crunchy leavesIs this normal during the last weeks? I've been feeding just ph'ed water during 10 days after the PK 13/14
Any idea would be awesome, thanks in advance.
Leaves. Edges burnt
Leaves. Curl down
Leaves. Color Ā· Yellow
6y ago
3
3
Solved
ganjermaster
Burnt, should I throw it and start from zero?I have 1 burn auto for excessive light, should I throw this one and start from seed again or maybe flipping to 12/12? The light is farther now but maybe I can do something else than put away my lights.. my current schedule is 18/6 and the plant is around 45-50 days old
Leaves. Curl down
Leaves. Color Ā· Yellow
Plant. Twisted
6y ago
1
6
Solved
LAShugars
What is happening?Any idea what this is? Leafs are light pale green. Yellowing some with little brown spots. Started last week. Been looking up different deficiencies but not sure. please help.
Leaves. Curl down
Leaves. Color Ā· Yellow
5y ago
5
5
Solved
wqleo
helpI added some Calmag by mistake, what should I do?
Leaves. Curl down
Leaves. Color Ā· Yellow
6y ago
1
1
Solved
I_roll_my_own_420
Hello guys. Im having Is it too much or too low nitrogen, thah causes my bottom leaves yellowing? 600w, 1m2 tent. 2m tall. 6x autos, 4 diffeternt models.Plants were too green and leave tips were pointed down. I stopped adding nut. for 11 days. Here is picture of today, right after watering with 2ml bloom in 1.5l bottle. ph 6.8, 340ppm. Should I feed them more, or not? Its week 5 from seed, and they are autoflowers. 4 dif. strains
Leaves. Curl down
Leaves. Color Ā· Yellow
Setup. Strain Ā· Autoflowering
7y ago
1
1
Solved
KisukeUrahara
Defficiency? 1st growIām unsure of what is wrong with my plants. Leaves are turning yellowish colour and withering, first affecting old growth in week2F autoflower genetics.
I use ph 6.4 water, runoff measured at 6.0.
Leaves. Curl down
Leaves. Color Ā· Yellow
Feeding. Deficiencies
5y ago
8
13
Solved
darbyog
Leaves looking a bit discoloured and wilting slightly, what could be causing it?Leaves are drooping a bit and slightly discoloured, especially when comparing it to the other plant. Also, a couple seem to be growing at a much slower rate, is this anything to worry about or will they catch up? TIA
6y ago
2
2
Solved
lotuslord
Is this a deficiency?Hello there,
Today I saw that some of my plants have some curled and sad looking leaves (see pic). The soil is pre-fertilized and I currently use normal tap water (p.H. adjusted) for watering. My plants get 18hrs of light a day (approx. 300-400PPFD)
Thanks for you help guys :)
4y ago
2
2
Solved
BigD_era420
Flowering nutrientsMy beans enter week 6 of flowering and the leaves turn into this color. What can I do?
Leaves. Curl down
Leaves. Color Ā· Yellow
3y ago
1
Solved
Marijuanaut
Yellow/burned tips & curled leavesI have an issue with some yellow/burned tips and curled leaves.
I already suspect that mainly is from light stress but could also be a nutrient deficiency?
IĀ“ve raised the lights the max I can and keep it at 80% for 20 hours.
Biobizz soil and nutrients.
ā¦ Show more
Leaves. Edges burnt
Leaves. Curl down
Leaves. Color Ā· Yellow
1y ago
10
7