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Any thoughts on these symptoms?

cooler

New member
Thinking of potassium deficiency. It may be locked by high salinity. Knowing more details about your pH and soil conditions would surely help though.
 
U

Ultra Current

Check your pH. What do you expect us to say with no details.
 
S

SeaMaiden

I suspect a Ca deficiency, but I've never seen one progress to the point of leaves curling.

I say Ca and not K as suggested because it's occurring on the newest growth in the worst manner.

They also look pretty much done to me, so it seems there's no need to start trying to push Ca at this point, needs to be laid down in tissues from the start.
 

moses wellfleet

Well-known member
Moderator
Veteran
I suspect a Ca deficiency, but I've never seen one progress to the point of leaves curling.

I say Ca and not K as suggested because it's occurring on the newest growth in the worst manner.

They also look pretty much done to me, so it seems there's no need to start trying to push Ca at this point, needs to be laid down in tissues from the start.
yes it only occurs on the top of the plant and some are yellow and others not.

i recently started CO2 enrichment but i did not increase the nutrients so it has been suggested to me that the plants are using up all the nutes before they finish.

my medium is organic soil with aerated compost tea. before i started the CO2 i was getting the same symptom on some of the leaflets but very slight.

and the other thing is, you responded to my thread on alkaline water (thank you) i am pretty sure it is not related to ph because my veg plants are in perfect health and i am now mixing my tap water with RO water from my air cons, also before the CO2 i didnt have these problems!

can you suggest an added source of calcium?
 
S

SeaMaiden

Hhmmm.... I've gotta think on that. Typically I think of stuff like oyster shell flour, but that may cause you problems if overused. I've read of, but have never tried, a method of baking egg shells until they're ashes, and somewhere in that I think there's a vinegar step, but hell if I can remember at this moment (haven't finished that first cuppa joe!).

How about using Bio-Link's 6%Ca? I like that stuff a lot.
 

kmk420kali

Freedom Fighter
Veteran
They also look pretty much done to me, so it seems there's no need to start trying to push Ca at this point, needs to be laid down in tissues from the start.

Yup-- Last thing you want to do at this stage, is start pumping nutes in them-- They are almost done...they SHOULD be depleting their nute supply...looks like you will have a nice li'l harvest!! :tiphat:
 

bombadil.360

Andinismo Hierbatero
Veteran
yup, nothing wrong with them, actually, lack of nutes at this stage is good.

let them yellow the fuck out :D

yummy harvest
 

moses wellfleet

Well-known member
Moderator
Veteran
View ImageView ImageView ImageView ImageView Imagei know what i am thinking but i want to see if i am on the same page as others?
i think i may have cracked this case:dance013:

couple months back my source of dolimitic lime changed. the new supply has a lot of grit in it. i didnt realise how much until i sieved it today. 50% of the volume is made up of big particles that will definitely not be available in the soil during the 3 month growing period of my plants.

so i sieved out the grit and i am using only the fine powder now... thanx to all those who posted here... i really hope this is the problem!
 

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