Let's talk soil management for a minute.
So I'm in the middle of the veg phase of my first high brix grow, and I'm starting to ponder what I will need to keep the grow going continuously for the time being. As I think I mentioned earlier, I am growing to produce concentrated cannabis oil, and will need approximately 8 oz. of dried bud per month for at least the next four to six months. Not really sure how much I can expect to harvest from 8 plants in 10 gallon pots. The strain breakdown in this 8 plant flower tray is 3 Blue Dream, 3 CBD Critical Cure (indica dom.) and 2 Darkstar (Indica dom.). I'm keeping my fingers crossed that I can harvest 16 oz. from these 8 plants, which will keep me in oil for the next two months until my next harvest is ready. But I don't want to wait a month while the first grow soil is being recharged. So I will need more soil. My question is how much?
Running some numbers, I believe I remember reading that each bag of Pro-mix will get me about 49 gallons of soil. So the two bags I now have ready to go should take care of me through my first harvest, with 80 gallons for the 8 plants in 10 gallon pots, plus 8 to 12 seedling or clones in 1 gallon pots in the veg tent which will hopefully be timed right so that they are ready to be up potted and put in the flowering tray after the first harvest. So at the time of the harvest I will need another two bags of Pro-mix ready to go. So that's 4 bags total. And at that point in time the first batch will start another month of cooking with more amendments, getting ready for the 2nd reuse of that batch of soil. So I should be able to keep the grow moving along continuously by rotating the 2 2-bag batches of soil, right? And understanding that after 3 or 4 reuses I will need a new batch of soil.
Does this sound reasonable, and are my yield projections reasonable? That's why I want to use 10 gallon pots. I also have decently controlled environmental conditions, and will be running CO2 as well to help with the yield. Also, I am missing anything with my assumptions other than yield. Times to veg and flower about 2 months each seem right? I'm new to growing so not sure what I might be missing.
I greatly appreciate everyone's thoughts on this. It's important I get all of this right, to the extent possible!