One Of Four Deficient?

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JMcG

JMcG

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One of four deficient
One of four deficient 2
One of four deficient 3
I need some advice on this one...
This is an LSD lady in week five. She is one of four plants in a four banger UC system, two lsd and two critical kush. The other plants look fantastic but this one just keeps looking more mag deficient by the day ( I think it's mag... ?).
Using ionic nutes around 330 ppm (500).
Ph 5.8 to 6.1
I did add 5 ml cali majic on he last rez change and have used 2 ml silica blast by botanicare for the first few weeks of flower.
Temps have been stable, 78 daytime 68 nighttime.
Again, the other plants look great , maybe just a hint of the same problem on one of the Critical kushs , but they look really good. Better than the GH Floradou system next to it anyway!
Any ideas?
Thanks in advance!
 
JMcG

JMcG

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No. But everything else points to mag I think. No pro on diagnosing deficiencies tho.
I have ran lsd before and it always seemed hungry for more. Not sure of what, but they always looked tired by the end of the run
 
JMcG

JMcG

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Those tips went from ok to curled up and crispy in less than five days
 
JMcG

JMcG

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Ok... it must just be a pheno that wants more calcium then cuz the other plants are looking great.
Any good recommendations on a good cal supplement?
 
JMcG

JMcG

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Well, they looked at me like I was an alien...
" you need maji cal then,"
Nope, don't need more mag....
" have you tried cal mag?"
Grrrr...
 
JMcG

JMcG

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They did have NFTG calcium product but it did not sound compatible with my sterile UC system. Also a NFTG ph up lime product, but I decided to keep looking . We have another store that popped up in town so I'll give them a shot.
That plant gets more jacked by the day. Leaf tips completely curled back on themselves. And crispy.... pretty ugly.
 
JMcG

JMcG

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Thanks Lee dub!
So this wouled be a foliar then? It's says it's for soil... I'm UC.
Plant is in week five now, so would I just hit the back of select leaves ? I don't want anything one those buds!
 
cannabeans

cannabeans

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From the link....
. It is recommended a pH range of 5.5 – 6.5 is maintained for optimum nutrient uptake.
 
JMcG

JMcG

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Got it , thanks.
It can't be a ph issue... been maniacal about keeping it in the zone!
5.6- 6.3 swings .
 
JMcG

JMcG

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It's gotta be a pheno thing. It's seed sister looks damn near perfect. Going into week six I usually see something starting to manifest, but these are chugging along really nicely... except that one plant.
 
cannabeans

cannabeans

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I was not aware that they were two different seeds...
I think you're right on track with your last statement.
Good luck with her...
 
JMcG

JMcG

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IMG 1360
IMG 1361
IMG 1362
I think I'm gonna lose her. The way it happened so fast and the looks of her now maybe it's a toxicity deal. Everything but the newest growth is toasted!
The middle pic is of the other seed. Sound well, but maybe a bit of the same starting to show.
I'm gonna do some research on this strain. It's one of my faves but has been finicky for me.
 
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