Deficiency help

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GreenMedicalPatients

New Member

• Feb 19, 2024

• #1

Anybody know what nutrient this plant is deficient in? The markings start at the top and are the worst under direct light. Feeding with jacks 321 in coco.

 

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Fallguy111

Well-Known Member

• Feb 19, 2024

• #2

GreenMedicalPatients said:

Anybody know what nutrient this plant is deficient in? The markings start at the top and are the worst under direct light. Feeding with jacks 321 in coco.

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Are you adding Epsom to your water?

 

G

GreenMedicalPatients

New Member

• Feb 19, 2024

• #3

Yeah, and cal mag too sometimes. Does it look like mag to you? Thats what i thought originally but now im second guessing myself because it starts on the top of the plant and I read that mag is mobile.

 

LedbetterCookiez

Member

• Feb 19, 2024

• #4

https://www.semanticscholar.org/paper/No-.-111-Possible-roles-of-zinc-in-protecting-plant-Cakmak-Marschner/c1dd64bad5d9ffce91403300fdef7eab02455bec/figure/4

 

Fallguy111

Well-Known Member

• Feb 19, 2024

• #5

When I switched to LEDs I upped my mag a bit. Magnesium deficiency I believe starts showing at the top. I’d add 1tsp per gallon and I think it will fix your problem.

 

G

GreenMedicalPatients

New Member

• Feb 19, 2024

• #6

LedbetterCookiez said:

https://www.semanticscholar.org/paper/No-.-111-Possible-roles-of-zinc-in-protecting-plant-Cakmak-Marschner/c1dd64bad5d9ffce91403300fdef7eab02455bec/figure/4

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so zinc eh?? What a weird one

 

MickFoster

Well-Known Member

• Feb 19, 2024

• #7

What's your feeding schedule?

 

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1212ham

Well-Known Member

• Feb 19, 2024

• #8

GreenMedicalPatients said:

Anybody know what nutrient this plant is deficient in? The markings start at the top and are the worst under direct light. Feeding with jacks 321 in coco.

Click to expand...

Looks like mag def. You can spray the undersides of the leaves with mag just before lights out. People suggest a tsp or tbls per gallon in distilled or RO.

 

bignugs68

Well-Known Member

• Feb 24, 2024

• #9

only on my second grow, but I use these to get my best guess and then also ask here. Based on the second chart/pic, Magnesium?

 

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