Which deficency is that?

C

canabuder

Member

• Oct 3, 2018

• #1

This is jack herer one month old, it has a yellow leave at the bottom and a little bit of yellow on the top leaves also. The yellow is at the edge of the leaves, thank you.

 

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green-genes77

Well-known member

Veteran

• Oct 3, 2018

• #2

Perhaps a general hunger, with a special need for some Nitrogen. Overall looking a bit pale. Without knowing the watering/feeding history of the plant I would say it has been overwatered a bit and could use a good dose of a complete fertilizer meant for vegetative growth, fish hydrolysate or something. The bottom leaves will probably still be cannibalized but it'll be fine.

 

Last edited: Oct 3, 2018

C

canabuder

Member

• Oct 3, 2018

• #3

Thank you very much for the quick answer.

 

S

sturgeongeneral

Active member

Veteran

• Oct 25, 2018

• #4

It's hungry. Up your nutrients.

 

J

Jett67

New member

• Oct 27, 2019

• #5

Hey guys! random
To comment in the middle of your post but I am a nubeee on here!!!need some help with a deficiency have a Barney’s Farm fem plant from seed in a 18L flower pot slid into a 24L as that’s how I drain and reciurc

Medium-

Coco perlite around 50/50 mix With a shallow layer of hydraton balls at the bottom to help drainage etc


Plant is 2 weeks into flower now but because the light is so intense I never notice this yellowing happening until just now ���� starting on the new growth too


I’m
Running Canna nutes - aqua Vega A&B And cal mag -veg was giving rhizotonic too and now aqua

Flores A+b + abit of cal mag first BBM res change of the Flores EC 1.5 now bumped to 1.7 because I thought it might be Nitrogen deficiency PH 5.8


She is healthy as STRONG but if I don’t fix this it will potentially ruin the harvest or KILL it ����


I’ll post a pick below any help would be amazing.

 

J

Jett67

New member

• Oct 27, 2019

• #6

 

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S

sturgeongeneral

Active member

Veteran

• Oct 27, 2019

• #7

What sort of light are you using? How close is it? Kinda looks like bleaching to me...

 

J

Jett67

New member

• Oct 27, 2019

• #8

Hey brother thanks for the reply!!! i have a OG shroud/cool tube my ballast is 1 of those older lumatek ballast 1000 watt dimmable had it on 600w but now looking deeper into the crowns in that area it does look sorta bleaching i just turned it down to the lowest setting id say thats 400w

as i have no more head room to up the light



i feed for 2 minutes through a halo ring every Mon - Wed- Fri but yesturday SATURDAY i wanted to up the ec because i thought nitrogen might of been the deficency so i have added extra 20ml of A which gave me 1.7 but didnt seem to help at all its

killing me slowly hahahaha

 

S

sturgeongeneral

Active member

Veteran

• Oct 27, 2019

• #9

1.7 does seem a little high ec wise. What sort of distance is your light??? Are you actually air cooling the light??

 

J

Jett67

New member

• Oct 27, 2019

• #10

Generally I run 1.5 most people saying that’s too low ! People saying go to 1.8 even 2.2 I think that’s abit ridiculous to be honest !


Yep I have a 150mm ball bearing fan that Forces air through the light shroud n out of the tent flows well .... my hand doesn’t burn under the light but is warm after a little bit ? Thanks heaps id love to work this out could be a massive learning curve too

 

J

Jett67

New member

• Oct 27, 2019

• #11

Distance from light to the tallest head is 35cm

 

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sturgeongeneral

Active member

Veteran

• Oct 27, 2019

• #12

I'd personally try to back the light off some and drop the ec down a little. Height wise though 13 inches should be fine... I'm running coco but I top out at 1.2 to 1.4 myself