Diagnosis week three to four

[leroygreen]

Day 23 flower
50 percent ffhf
50 percent ffof
Fox farms trio
Cal mag
Hi brix
Temp stable at 70 to 74
Humidity 52 atm
Good air flow
No CO2
Ppfd 650 lowest buds
Ppfd 1100 highest buds


Is this beginning of lockout or phosphorus issues?

 

[Oldguy71]

Potassium deficiency

 

[leroygreen]

Potassium deficiency
View attachment 2157480

Thank you sir that is exactly it, Appreciate it!

 

[Oldguy71]

No problem. Here’s a link to the study.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9920212/

It’s a very long read but the pictures are very helpful

 

[leroygreen]

That was a long read! I caught it last night and it was very new as I spent most of my day with my plants. Attached are pics from today. I ran ph'd water through when I noticed and Saturday I have some more nutes coming. I did recently over feed big bloom, fairly large over feed, oops. Runoff was 6.0 on the left budding plant, 6.1 on sativa. They look good.