Hi
@John Snow, unless I missed something, that's a pretty random post you made there
I tend to harvest my Autos around the 100 day mark, I never go out of my way to keep the K super low..... I was on an NPK of 12.5 - 2.1 - 6.6 in weeks 2-4,
5.2 - 2.3 - 7.0 in weeks 4-7, and 3.8 - 21.2 - 12.9 in late flowering..... all reasonably high K levels on a grow where the plants hit the roof of my 2m high tent...... 2 Autoultimates harvested at 116 and 121 days, giving me just under 40 Ounces (!).
I use House and Garden nutes (Coco), the NPK 4-3-9 makes it hard to keep K levels down anyway.
What I have noticed is that early flowers show around the day 28 mark, and instead of going into pure bloom, veg and bloom happen together for a bit longer.
Something else I've noticed is that stressing Autos around week 3-4 (by defoliation or repotting, or staking out etc) and again a couple of weeks later, makes them go on a bit longer..... flowering slows a bit but vegging continues for 5 or so days, making the plant get bigger, then flowering speeds up again. Its like pressing pause on flowering, you still get the full amount of flowering time, but you've just moved it along the time scale (d'ya get me?)
Sorry, I'm really hammered so I'll stop yabbering.
What (and roughly where) you growing Bro?