The Grow Awards 2025 🏆

Chat

By continuing to use the website or clicking Accept you consent to our cookies and personal data policy and confirm that you are at least 18 year old. For details please see Privacy Policy and Terms

Accept

Recommended

Back to Grow Questions

Help with orbanic fertilizer deficiency

VegyVegstarted grow question 8 months ago

Im using bio tabs nl and have pretty significant deficiencies by now, I did the second stage of fertilization (you do at the start of the grow and at week 8), it was at quite low ph i think 5.something, was that the issue, that the plant didnt uptake ang fertilizer?

VegyVeg

VegyVeg

Open

Leaves. Color - Yellow

Leaves. Color - Dark-brown

likes

Answer

00110001001001111Oanswered grow question 8 months ago

This dummy (me) skipped the 5pH part.. sounds like pH is too acidic.

likes

Complain

Similar Grow Questions

Solved

Yellowing from the top Runtz Auto Week 6 of flowering Growing hydroponics using silica, MJ plant prod finisher, cal mag, hydroguard, root drench, bud enhancer and sweetener. Mixed exactly in that order. pH 5.9 (using pH pen for readings) yellowing from the top I don't have ppm/EC meter or light meter

Leaves. Tips - Burnt

Leaves. Color - Yellow

9 months ago

3

4

Solved

make_weed_not_war

Yellow leafes with Brown circles So the Easy Bud in the tent Looks Like trouble. The Leafs turn yellow with brown circles… im clueless what It could be but it does not look Healthy. The Leafs at the deepest bottom Look Fine… All Others dont Look good..

Leaves. Curl up

Leaves. Color - Yellow

Leaves. Color - Dark-brown

9 months ago

1

2

Solved

Yellowing, wilting, stunted growth Can anyone please help me identify whats wrong with them. I've done a flush, adjusted the lights, reduced the nutrient strength, I've pretty much done everything and still stunted growth and they are still looking weak and frail. I'm lost and I don't even know what's wrong.

Leaves. Curl down

Leaves. Color - Yellow

Leaves. Color - Pale

9 months ago

1

5

Solved

Whats wrong with her Watering every 3-4 day with around 1,75 Liter, Ph 6,3. Once a week feeding biobizz fertliza, about 1/3 of the recommend amount. It started 1 day ago, after watering and feeding.

Leaves. Tips - Burnt

Leaves. Color - Yellow

9 months ago

1

1

Solved

White Widow Automatic in soil Watering every 3-4 days with about 1.75 liters, Drainoff Ph 6.8 Once a week feeding biobizz fertilizer, about 1/3 of the recommended amount. Grow, Bloom, TopMax, Active Vera, Bio Heaven. Since 1 week CalMg 0,5 ml/l It started 1 day ago, after watering and feeding. Thanks

Leaves. Edges burnt

Leaves. Color - Yellow

9 months ago

1

1

Solved

Yellow tips at bud-leafs What is the worst case of what could happen to the buds and the harvest due to the yellow tip burn? Since 5 days the near leaf buds have yellow tips. It could have any reason. Flys, high ph, to high nutients. Already watered with neem oil and gave citrusjuice in water to lower p

Leaves. Tips - Burnt

Leaves. Tips - Die

Leaves. Color - Yellow

9 months ago

4

4

Solved

Am i overwatering my plant ? Im a noob Did i overwater my plant? Symptoms are curled leaves, leaves are yellowing from outside to inside, tips are brown Im watering once the first 3 cm are feeling dry with 1/10 of Pot Volume so 800ml. Im using BioBizz BioGrow as a Fertilizer. Im in Week 6 of Veg

Leaves. Tips - Die

Leaves. Curl down

Leaves. Color - Yellow

9 months ago

1

1

Solved

Gelbe Spitze Habe 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

9 months ago

1

1

Solved

Lower leafs getting yellow tips and spots I just noticed that the lower leafs are dying, while other leafs are getting yellowish spots. Is this some kind of nutrient deficiency? The leaf with the yellow spots is near the air intake. They didn’t get any fertilizer except root juice since the soil is still somewhat fresh.

Leaves. Too few

Leaves. Tips - Die

Leaves. Color - Yellow

9 months ago

1

1

Solved

should i be worried?8 weeks in flowering and now I have some yellow leaves, normal?

Leaves. Color - Yellow

9 months ago

3

4

Solved

Yellowing leaves Lower leaves are turning yellow, these seem to be one that are hidden a bit from sight, so possibly not getting enough light, but it seems to be spreading, and one of them has fallen off. Is this some form of nutrient difficiency, or something simipler?

Leaves. Dropping off

Leaves. Color - Yellow

9 months ago

4

3

Solved

Yellow Leaves Hello community, I need help. My plant kept getting yellow leaves. I responded with more fertilizer. That seemed to help for the time being. She is in the 5 WEEK flowering phase. The nights have been colder than usual for the past 6 days. Now 60% of the leaves drooping and yellow

Leaves. Dropping off

Leaves. Color - Yellow

9 months ago

1

Solved

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

9 months ago

1

1

Solved

NewOfficialDrillInvaders

Not sure what it is Got some problem with one plant her leafs looks yellowing and got dark spots

Leaves. Color - Yellow

9 months ago

2

Solved

First grow first problem Double grape mephisto. In week 5 veg. Ffof & ffhf . Gave first light feed of GH trio + calmag 3 days ago this developed day after feed. Purple stems and yellowing leaves. Looking for guidance. I'm thinking nitrogen def. Or mag def but I have no Pryor exp to base this. Thoughts?

Leaves. Tips - Die

Leaves. Curl down

Leaves. Color - Yellow

9 months ago

3

Solved

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

9 months ago

3

Solved

Why do my plants only have that light greenish yellowish look at the top and why is one of my plants also having those sick leaves at the bottom?2 of my 3 plants are a bit yellow-ish at the top since about a week. Plant 1 also had a couple of sick leaves at the bottom that I did remove. Those leaves had brown/dark spots, felt dry like paper, had very purple stems and did smell more like hay. More info in my report.

Leaves. Wilting

Leaves. Color - Yellow

Leaves. Color - Mottling

9 months ago

5

3

Solved

Nutrient & critter problems need 1-2weeks from harvest need advice The plant is a couple weeks of harvest but has some issues. (Some kind of nutrient lockout or deficiency can't tell what tho, pH is fine at about 5.8) And I got these annoying critters that seem to live on the soil (but aren't touching the plant) Any ideas on what to do ? :/

Leaves. Tips - Burnt

Leaves. Curl down

Leaves. Color - Yellow

9 months ago

1

1

Solved

Tacoing and leave colour I 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 :(

Leaves. Curl up

Leaves. Color - Yellow

9 months ago

1

1

Solved

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

Leaves. Color - Dark-brown

Setup. Strain - Autoflowering

Feeding. Deficiences

9 months ago

5

3