Originally Posted by GMT
45 gallon? 180 litres each plant? What ballpark yields would you expect from that much compost? I know I use 15 litres for 1 ounce per plant or 25 for 2. So I'm wondering if the economies of scale are still present at that point or if you hit a wall of diminishing returns.
I believe anything past 4 gallon / 16 litres is the start of the diminishing returns . what i have noted is root growth is almost none existent past 18 inches deep. The width of a potter controls a plants canopy. Soon as roots run out of horizontal soil room they grow vertically .
these are just temporary potters . yield per gallon goes down as potters get larger especially past 45- 100 gallon. but on that point cost of fertilization and window for error goes down with larger potters .
You should check out the thread that is all about these plants and this years outdoor .
There is a link below in my signature
The female seeds one