Here's an update of the Tick Stem PC in week 4. I do wish they could all be like her, but must suffer another round of Cheese and Thin Stem (womp womp womp). This thick stem looks gorgeous. Of course the short stature leaves more than a foot between her highest top and the COB fixture, there are very many thick branches that are evenly spaced, have decent internodal spacing and when looking at her handling my feed adjustments from week 3 to week 4 (K & S bump ups), she is downright devouring the feed EC. She was ravenous in week 3 which was the last week of the "Stretch" regimen, week 4 begins the "Mid Bloom" regimen, except I moved K up from 150 to 170 and S I moved the target from 60 to 100, though it only resolved to around 82 PPM, still all is looking very well.
@ilikemsticky will enjoy that there is no leaf tip burns both down low or up high on the plant, granted she's only about half way in, but usually be harvest the tips will only get to a light green, to an almost yellow, but not the sandy burnt color that I actually suspect to be calcium def and not nute burn as I also see "burnt" tips in everyone's soil grows too. My studies are showing that calcium tends to be the most fussy or finicky element that easily falls out of availability. To combat this, it's most helpful to use organic acids that will chelate the calcium and keep it from contacting other elements especially sulfur and form gypsum which is then no longer available to the roots w/o microbes to crack them apart again.
At any rate, I ask that you draw your attention to my purple/reddish petioles and help me diagnose that symptom in hopes that I can adjust the feed properly. My best guess at this time is P def, though very minor as I am already at the peak for P of 65PPM which is almost double what every other brand doles out including Jack's, Peter's and Megacrop, but also compared to at least GH and I suspect the rest too. That said, I am very reluctant to raise P any more w/o other feedback or information that will make me feel a lot better that it's only a P def. As said here and elsewhere, my goal is to grow a perfectly gree plant top to crown with no burnt tips, no leaf discoloration and no streaks in the stalks or reddening of the petioles. As is, the Triple Cheese doesn't redden at all and loves this feed just the way it is, the PC which will actually be kept going isn't fully in love with my feed just yet.
So if any of my subs would kindly help me figure out the reddish petiole situation, I would greatly appreciate it.
Bottom Leaf
Top Leaf
Thick Branch
Ravenous Eater in week 4
Mid Bloom Regimen with high K and S. P is still at 65. This I am considering upping to 70. N is high, but the greenness of the leaves isn't too dark so I think it's fine as is.