Back to Grow Questions

Help diagnosing deficiency

Eagersstarted grow question 6y ago

Can someone help diagnose this? Is this a Nitrogen deficiency or a Potassium deficiency, Ph runoff is fine 6.4 and EC runoff is 1.8. Lower leaves have been yellowing and dropping so last feed I upped grow to 1.5ml/l from 1.0ml growth has been good. Dont want issues now tho Thanks

Eagers

Solved

Leaves. Veins - yellow between

Leaves. Color - Yellow

likes

GMSgrowsanswered grow question 6y ago

You sound like your in a pretty good place. The ec your feeding is a little high if your early bud. Older lower leaves will turn yellow and die. If the entire plant starts yellowing early, and your runoff ph and ec are good then there wanting a little more food. Early flower I run 1.2 ec in a week if I see yellowing happening I up my feed to 1.6 and run at that amount through mid flower, maybe 1.7 if they need that much. Late flower back to 1.2. Cheers

1 like

Complain

Selected By The Grower

Similar Grow Questions

Solved

Still to early to tell? Noticed yesterday and have slightly worsened today. Not sure the issue but potentially magnesium? Getting close to top dress also.Only on 1 of 3 plants so far. On older growth after getting dose of Recharge the other day. Maybe an N problem as I also use 484? Or mag? Using CalMag every other watering in RO at 150ppm as the soil has some cal and mag. Also getting close to top dress time maybe something else?

Leaves. Veins - yellow between

Leaves. Color - Yellow

Leaves. Other

4y ago

4

Solved

Magnesium - Nutrient problem Do I have Magnesium deficits or any other problem? I started to notice during the last week and it is progressing quickly. The last weeks, pH of drain water was low (between 5,5 and 5,8) but I could increase it until 6.1. Has anyone the same problem? Thanks!

Leaves. Veins - yellow between

Leaves. Color - Yellow

Feeding. Deficiences

4y ago

9

6

Solved

I have a deficiency. Can you please check out my pics and give your advice? I thinks its a Magnesium deficiency, am I correct? Increase CalMag? Flush with extra water? Any tips would be helpful.

Leaves. Veins - yellow between

Leaves. Color - Yellow

6y ago

4

3

Solved

First week and never had little plants struggling so much to grow. Please, read my comment about the first week to a detailed explanation of the problem. The question is, what else can I do, except from waiting? I don't want to over do (again)

Leaves. Veins - yellow between

Leaves. Color - Yellow

Plant. Too short

6y ago

3

3

Solved

Discolouration Is this plant still healthy?? Starting to see the leaves change two tone? A yellow/light green colour and the veins too anyone give me some advice?

Leaves. Veins - yellow between

Leaves. Color - Yellow

5y ago

2

2

Solved

Mg deficiencies? RDWC I have a Lemon auto RDWC and Blue dream auto in ffof mix. Both are showing some deficiencies or something no. Both have dark green veins and have like a gradient effect where it gets lime green to yellow inside outwards and a few burnt tips. Any advice?

Leaves. Tips - Burnt

Leaves. Veins - yellow between

Leaves. Color - Yellow

4y ago

3

Solved

How to fix nutrient issue I’m wondering if it is nutrient lockout my plant is experiencing. I did some defoliation on day 40 but now i will stop to not further stress the plant. I use citric acid as ph down and runoff ph is 7.1. Day 41 and still no vertical growthe or much new leaves :/

Leaves. Veins - yellow between

Leaves. Color - Yellow

Plant. Stem - Red or purple

1y ago

11

6

Solved

Yellowing sugar leaves Why are my leaves so yellow - dimmer is all the way down and I raised the light higher up. Like it suddenly can take it- see pics

Leaves. Veins - yellow between

Leaves. Color - Yellow

6y ago

3

2

Solved

Pattern on leaves Got this pattern on a section of the girl. Not the whole plant any guess??

Leaves. Veins - yellow between

Leaves. Color - Yellow

Leaves. Other

6y ago

1

1

Solved

First grow yellowing seedlings :( nute problem?I seem to be following all the instructions on grow temperature range, light distance, and watering schedule(only watering hen the medium is drying); I've hardly used any nutes until day 22 as advised and I personally think this has caused me some issues although I may be wrong.

Leaves. Veins - yellow between

Leaves. Color - Yellow

Leaves. Color - Pale

6y ago

3

4

Solved

Leafs Coloring The plant leafs are getting weird coloring, i dont know whats appening, someone's got any tip or trick?

Leaves. Veins - yellow between

Leaves. Color - Yellow

2y ago

3

2

Solved

Crispy Yellow Leaves Inflow EC=1333 w/ PH=5.8 vs Runoff EC=658 w/ PH=6.0. Insufficient nutes due to light intensity? Perhaps my PH meter is inaccurate? Light is 42 inches from canopy or ~600 PPFD. RH 65%, Temp 80 F.

Leaves. Veins - yellow between

Leaves. Color - Yellow

6y ago

1

3

Solved

Issues with 1 plant not the other (flowering)2 plants treated identically. One has started to have serious yellowing / bronzing on new growth. The other is fine. Any advice welcomed. :)

Leaves. Curl down

Leaves. Veins - yellow between

Leaves. Color - Yellow

2y ago

3

5

Solved

Nitrogen deficiency? What can I do to fix it?My gorilla girl xl aut is getting a nitrogen deficiency. I think? Im using megacrop. about a ½teaspoon every watering. Also a 1/16tsp of bud explosion and sweet candy. Should I add more? I have the whole line of fox farm nutrients. Anything from there that would help?

Leaves. Wilting

Leaves. Veins - yellow between

Leaves. Color - Yellow

6y ago

1

1

Solved

Roots getting brown My Ph probe didn't work, PH was at least more than 0.30 (maybe 0.60) than displayed. As a result they had multiple chlorosis, now septoria leaf spots and possible Pythium since the roots are getting brown. What would you do to save the crop ? Adding mycorrhizae? Thx!

Leaves. Veins - yellow between

Leaves. Color - Yellow

Roots. Color - Brown

5y ago

2

1

Solved

This is what I saw today, about one leaf the one after the Cotyledons, both of them are starting to turn yellow in betweento so I didn't know if she was alright or if it Was a bug since she has all those black dots on her plus the other leaf next to her has apparently a good bite

Leaves. Veins - yellow between

Leaves. Color - Yellow

Other. Bugs

6y ago

3

Solved

Yellow spots on leaves Are the yellowing spots signs of Leaf Septoria? I'm assuming it's more of a nutrients issue but have never experienced LS and wanted to get some second opinions.

Leaves. Veins - yellow between

Leaves. Color - Yellow

3y ago

1

1

Solved

How can I fix high runoff EC and pH?EC high (0.2ms/cm in, 0.6ms/cm out), pH runoff a little high (6.71 in, 7.18 out). Yellowing of leaves moving up plant, followed by yellowing between the veins on new growth. Help please!! Had issues with this one for a while so last fed 2 days ago with 1ml/l of Biobizz

Leaves. Veins - yellow between

Leaves. Color - Yellow

Feeding. Deficiences

6y ago

3

7

Solved

Deficiency or excess?I seem to have this same issue or similar issue with every grow. What am I screwing up? Affecting my largest fans.

Leaves. Dropping off

Leaves. Veins - yellow between

Leaves. Color - Yellow

5y ago

1

7

Solved

Does anyone one know the deficiency causing the leaves to yellow in this fashion?

Leaves. Curl down

Leaves. Veins - yellow between

Leaves. Color - Yellow

4y ago

1

1