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Back to Grow Questions
Magnesium deficiency?
RinNohara
started grow question 4y ago
Hey guys is this a nitrogen and magnesium deficiency I got going on here?
Open
Leaves. Color - Yellow
Feeding. Deficiences
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Answer
Roberts
answered grow question 4y ago
You have a ph in your substrate is off. You are in lock out on several nutritional needs. Run enough of correct ph water through soil till run off reads in range then replenish nutrition.
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Complain
Theptsdgrower
answered grow question 4y ago
Dude you seriously need Epsom salt, first I'd hydrogen peroxide my soil, flush, then epsom and cal mag
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Complain
Similar Grow Questions
Solved
GrowBrosInc
Ph Tester Malfunction, Whats next?
What is the best steps of action to react to a deficiency in the plant? Flush and add needed nutes? My ph tester was off so I think my ph is a little messed up which might explain the deficiency in cal/mag (? Any other thoughts welcome?)
Week 7
Feeding. Deficiences
5y ago
1
2
Solved
Misanthrope
Leaf Discolouration
I notice some leaves developing this yellow discoloration on the older growth, usually closer to the central stalk than the outside. The green gradually shifts to yellow going from mid leaf outward to the tip. I'm hoping it's just lack of sunlight from the dense foliage. Ideas?
Leaves. Color - Yellow
4y ago
1
Solved
rawesome
leaf tips #2
Hi, continuing the previous question. pH runoff was 6.1 So I decided not to flush and gave it CalMag. Since then yellow tips doesn't spread any further, but the fan leaves on lower branches become fully yellow and died. Does that mean problem is getting bigger and I should flush?
Week 6
Leaves. Color - Yellow
3y ago
4
Solved
Yayayatoure
Nutrient deficiency
Is this any kind of nutrient deficiencies?
Week 5
Leaves. Color - Yellow
5y ago
1
Solved
TripleCcannabis
Iron deficiency?
I suspect this is an iton deficiency due to excess phosphorus. Opinion? Im using GHE flors trio and added som Gro to make Gro Micro and Bloom in solution at a 1:1:1 ratio. Also added Cal Mend by Dutch Nutrients. Pic are 6 hours apart of new growth.
Leaves. Color - Yellow
6y ago
2
Solved
Viner_Green
Auto Ultimate feeding problems.
Why are my plants burnt at the top (new growth) but half way down the plant it has nutrient deficiency? How can a plant be hungry and nutrient burnt? Before you say it... Yes my pH is correct, yes my ppm is lower at run off. Temp is 28 celcius, 65% humidity, week 6. What is it???
Feeding. Deficiences
3y ago
1
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Solved
GhettoStyle
Ph 6.3 EC 1.3
Friends I asked the same question earlier! and it was decided to raise the EC !!! As a result, the EC raised! and the problem didn't go away(
Leaves. Color - Yellow
Leaves. Other
Feeding. Other
5y ago
1
2
Solved
Densko
What symptoms?
I was wondering what stress or deficiency is showing on the leaves. They have had periods of of drought and high heat
Leaves. Color - Yellow
2y ago
2
2
Solved
Ganja_Victoria_Aus
Yellow leaf and dot
Some of the leaf are yellow on the edge, also some have same yellow color as spot inside the leaf. I am feeding her too much?
Week 9
Leaves. Twisted
Leaves. Veins - yellow between
Leaves. Color - Yellow
6y ago
1
4
Solved
stonedJesus
Bottom leaves yellowing.
Worried about bottom leaves yellowing & drying. Third ever grow, never managed to get >5g yield so not very experienced but learning as I go. Not sure if overwatering or underwatering or a def / lockout, haven't abused her as far as I can tell (nute od, etc). Any help welcome :D
Week 4
Leaves. Color - Yellow
5y ago
1
2
Solved
shantibaba
normal water has an ec of 400 ppm .... I use cane earth plus .... I only gave the vegetative beginning the aptus root buster..alternating with enzymes ... and recently I have been using biobizz bloom
Week 3
Feeding. Deficiences
6y ago
1
Solved
Thecouple
Leaves curling down and yellow
this is my second grow so I kinda have an idea about phases till harvesting. it is about 4 weeks old, lately growing about an inch every day. leaves started. this two days its looking sick and I am not sure if its under/over watering or nitrogen related. 150-200Ml/D
Leaves. Curl down
Leaves. Color - Yellow
4y ago
3
4
Solved
dank604
Possible overfeeding nutes?
Could someone possibly identify the issue on that one leaf? I had another like that a bit worse that where the edges started to curl. They were fan leaves so I ended up removing them as they were a bit worse off. Doing much better now, only guess is too much nutes.
Week 5
Leaves. Color - Dark-purple
Feeding. Deficiences
6y ago
2
1
Solved
Jelly
Burn or deficiency?
Organic living soil, top dressed once w guano and vermiculite at start of flower. Last week fed with molasses and now have some yellowing on the upper leaves, some brown spots on top leaves, and red stems on one. No bottled nutes. Burn or deficiency?
Week 8
Leaves. Color - Yellow
Leaves. Color - Mottling
Feeding. Deficiences
3y ago
2
Solved
tiasmaaa
Magnesium Deficiency ? How can I fix it ?
got a little deficiency (maybe burned? but I think not). I'm pretty sure it's magnesium's deficiency, it happens after a flushing. I added 2 times the last 2 weeks a little bit of CalMag (BioBizz, but ive bought it 2 years ago, maybe it doesn't work well idk).
Leaves. Curl up
Leaves. Color - Yellow
Feeding. Deficiences
3y ago
5
5
Solved
CannaDiaries420
Should i replant Brain Damage nr: 3?
Should i end the grow of Brain Damage nr: 3? We are almost in week 5 and as you can see BD nr 3 is turning some yellow leaves she makes some small leaves but thats really it, no stretch at all. So my question is, should i replant it?
Week 4
Leaves. Color - Yellow
Plant. Too short
Plant. Other
4y ago
3
4
Solved
WulfBlud
Low PH runoff, dealing with deficiency due to low soil PH. Added lime and PH went from 5.4 to 5.0 after watering. How to raise it safely and quickly?
I have been dealing with a nutrient deficiency so added nutrients.It looked ok but then got a bit worse and I took some runoff readings which were 5.4 and then 5.0 the next week after adding lime to raise soil PH. How can I best raise the soil Ph being that I added lime already.
Week 6
Leaves. Color - Pale
Feeding. Deficiences
3y ago
1
3
Solved
Mystummyhurt
Ph output low when watering. Help!
Iām experiencing some PH issues when it comes to output. One week ago, I noticed after watering at 6.4, the PH out of the runoff water was 4.7 in left plant and 5.2 right plant. Is that ok? I was concerned! I added a bit of hydrated lime to my watering. The runoff of the most rec
Week 4
Feeding. Deficiences
4y ago
2
1
Solved
Spider
Hi guys, for you I used too much nuts? Or the little leaves's color it's normal? Reply , thank. š
Week 9
Leaves. Color - Yellow
5y ago
2
2
Solved
Misanthrope
How long to fix Mg deficiency?
I think I have Mg deficiency and started spraying with Epsom salt solution. The yellow leaves are still appearing, getting closer to the top. How long does it typically take to see improvement?
Feeding. Deficiences
4y ago
2