The Dr. has been vegging for full 8 weeks and on the 9th I switch to 12/12 . In the next few weeks she'll be stretching even more I guess. If she happens to stretch that wild as I have read, I'll have to struggle trying to stop her taking over my reduced grow room and I don't like to apply serious pruning after she has grown. Besides, my hypothesis is that as I chose a big pot, she might be growing aerially for a long time until the roots tell to stop.
Regarding fertigation, I apply once a day a solution 1.3-1.4 mS/cm EC (inflow) using Grow fertilizer alternating with Bloom fertilizer. I'm applying from today on a foliar spray to activate growth at this stage (this week and the two coming next).
Day 54 (05/11) fertigation Bloom fert 0.3 g/L, CalMax 1.3 mL/L, VitaMax 1mL/L, pH 6.1, EC 1345 uS/cm and Foliar spray. Iturned on the lights manually as I got up and saw the lights were out. She will have 4 additional dark hours today, but I wouldn't worry.
Day 55 today I did some work on rebel shoots and that's all!
Day 56 I fertigated with a Bloom fertilizer solution 1.3 EC inflow and 0.9 EC units run/off, I can increase the EC a bit higher until I reach 1300 uS/cm in the roots but as I see her growing fine and without deficiencies, I'll stick to this amount for precaution. Later I sprayed leaves with Foliar fertilizer just when the lights had gone off.
Day 57 Today Friday is vegetative fertilizer's day!
Day 58 happy Saturday to everyone be it autoflowering or photoperiodic! Thank God for your blessings. Today I had to replace one of the 50 W cob led but fortunately, lights are all shining now. She's been very shiny this morning too.
Day 59 I'll put her under 13,5 hours darkness a day.