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
Phosphorus def in veg?
Fordsiestarted grow question 4 years ago
Phosphorus deficiency in wk 4 of veg? I noticed a few small discolored blotches on lower leaves 2 days ago and today it is a lot worse! Use flora trio, and 2 other plants in this run are under same conditions with same nutes. Could this be a pH issue? PH has been consistently ~6.
Solved
Leaves. Curl up
Leaves. Twisted
Leaves. Color - Dark-brown
like
Experimentgreenanswered grow question 4 years ago
Hey
So I would definitely lean towards a phosphorus deficiency....but it can sometimes be connected with calcium too. Personally when i started regularly using a calmag supplement my plants were much happier.
Your plants don't use much phosphorus in this early stage and if you're giving a regular regimen of the flora this shouldn't be happening. Double check the outgoing runoff ph and if its coming out in the right range then I would highly suggest recalibration of your ph pen. They usually need it done every so often depending on how often its used. I usually recalibrate at least once a month because i had a ph pen go off and it caused total havoc on all my leaves.
Happy growing.✌️
Fordsieanswered grow question 4 years ago
@experimentgreen, I took a pH reading of tap water, then recalibrated my pH meter, and rechecked tap water...Holy Crap, you are right, it was totally off, by like a lot! What a freaking rookie mistake! I have been feeding these girls with a nute solution that was way to acidic. Damn it! They look so sad right now. I’m going to flush them and refeed with cal-mag at proper pH. I can’t believe I made this mistake, what an a**! Thank you for your feed back and recommendation, so very much appreciated. I’ll post progress in next update, fingers crossed things will normalize. Can’t say that I won’t still be embarrassed that this was due to user error and completely avoidable.
1 like
Complain
Similar Grow Questions
Solved
Flicker420
PLEASEE help me find the issues with 2 of my seedlings (3 seeds are from the same autoflower strain and its their day 5 in the soil after germinating withPlant 1 is growing with weird leaf shape and size (there is a mini seedling next to it that i havent touched yet and i dont know what it is!)
Plant 2 grew with 1 totally bent down initial leaf and the new pair of leaves that are curled inside.
As reference plant 3 has been great
Leaves. Curl up
Leaves. Curl down
Setup. Seedling
6 months ago
4
4
Solved
bekiffteridiot
Nutrient deficiency?My plant is not doing good and I sadly don’t know what’s wrong with her. I would be very happy if someone could help me solve this. My tent is about 26-29 degrees at day and 24 at night. RH is 60%
Buds. Not fattening
Leaves. Curl down
Leaves. Color - Dark-brown
7 months ago
1
1
Solved
SlamFM
Too Much Light?Top looks yellowish, more so IRL than in the pic and the new growth is kinda taco-ing. Just under 24" from the light, 78F and using Photone the DLI was at ~30. I don't really trust that app but if it's even sorta accurate, 30 might be high with no CO2? says their charts anyways.
Leaves. Curl up
Leaves. Color - Yellow
7 months ago
3
Solved
telez00m
Curled leaves and brown spotsPlease help! My Acapulco Gold suddenly showed leaf symptoms today. Shouldnt be a lock out, I always water with drain and use lower doses than the BioBizz chart recommends. Used Molasses two days ago, could that be the cause? Its the only plant that shows this signs.
6 months ago
1
Solved
Smoking_Joe_Frasier
Discoloration underneath the leaves. Should I be concerned?
Leaves. Color - Dark-brown
6 months ago
2
2
Solved
Burton1988
Hi growers what do you think let it grow or throwit away? bad genetics it's 3 week old and it doesn't seem to be getting better.
Leaves. Twisted
6 months ago
2
1
Solved
Surety
Deficit or surplusHey,
Can someone Help me pls?
Triple G Auto
Week 9
Soil
everything went great until today
Starting some Brown Spots on the top leaves
Maybe phosphorus deficiency or calmag deficiency?
Fertilizer hesi half according to scheme
watered two days ago with ph 6.4
Drain was ph 6.8
Leaves. Color - Dark-brown
6 months ago
2
1
Solved
Jan_Jan
Flecken auf Blatt und Halm oder Helikopter-MutterDie 2 Flecken auf dem vorderen Blatt und die dunklen Stellen am Halm beschäftigen mich ein bisschen. Glaubt ihr, die Pflanze hat ein Problem oder mache ich mir mal wieder zu viele Sorgen?
VP 10. Steht im 11l BB AllMix und wurde einmal am Anfang der VP mit 3l gewässert.
6 months ago
4
4
Solved
SomersetGrow
Tacoing and leave colourI am worried about the tacoing of the leaves and if the colour difference in the new leaves is normal. not sure if i should keep or take the domes of as one minute im told humidity is to low but now it seems like it is too high, PLEASE HELP :(
6 months ago
1
1
Solved
Germaican
What deficiency is this ?What is happening to my plant right now ?
I believe it is calcium deficiency also could be Manganese from the pictures. I did not add CalMag during the first weeks.
Usually Calcium deficiency shows after 4 weeks and during flower but not likely in soil.
Started around 6th week
6 months ago
5
3
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
Leaves. Color - Yellow
6 months ago
3
3
Solved
ChrisFirst
What’s happening with my leaves?It’s my first grow, I don’t really have a clue what I’m doing… read online, only have a 100 watt led lamp, 24 Celcius and 40% humidity. I used a testpack from biobizz and sofar my gorilla zkittles auto is looking ok!
But since I’m in flower week 6, I have curling leaves, normal?
Leaves. Tips - Burnt
Leaves. Curl up
6 months ago
5
4
Solved
PostMaGrow
Gelbe SpitzeHabe Probleme hauptsächlich an der Spitze und vereinzelt an der Pflanze!
An der Spitze ist es nur am auffälligsten..
Kann es Lichtbrand sein?
Leaves. Curl up
Leaves. Color - Yellow
6 months ago
1
1
Solved
HAILEKINGNATTY
Help with my grow!!!First time grower here and this may be hard to tell from the picture but I need some advice. Any idea why my leaves are curling like this? Plant popped out about 5 days ago. Coco coir soil. Am I over watering? Over watering? Or light stress?
Leaves. Curl up
6 months ago
4
4
Solved
Calzini1
Tip leaves curling up. What could it be?I have to make the post again BCS I can't answer to the other
Flushed the soil day 0, day 1 planted the small plant.
Day 7 the tips started to curl up.
Watered again at day 8.
Light 16/8 fecida 600 at 30% 38 cm distance.
27.5 C. 50% humidity.
What should I do? First plant for me
Leaves. Curl up
6 months ago
1
Solved
Ishkabud
Yellowing cause?What could this yellow and brown spotting be on the uppermost leaves? Also the curling? They are autos, i am giving them half dose of bloom and phospherous nutrients, as well as half dose cal-mag, temperature isnt overly high, watering every 2-3days until runoff.. bit confused
Leaves. Curl up
Leaves. Color - Mottling
6 months ago
1
1
Solved
Calzini1
Curled up leaves on day 7I started a plant ten days ago and from the 7th day some leaves started curling upwards.
I flushed the soil one day before planting the sprout and watered it again on day 9. I use the Fecida 600 lamp 16/8 day/night.
Does someone know what could cause the curling of the leaves?
Leaves. Curl up
6 months ago
1