If you were referring to my cannabis, then you know my plants def don’t lack nutrients. Any container grows I do whether cannabis or ornamental flowers of course get added ferts as the plants deplete the resources inside the limited amount of soil, but def not the ground. My ground soil just gets better and better with each year as there are a lot of rock element’s that break down for years and years.
I do not fly blind and guess what the soil needs on ground plants. My containers however is all a guesstimate by me though