"premise is that it can be done with excellent [better] yield results in containers"

You should test your premise before committing to 100 tree containers.

I'd guess that trees would produce much more in the ground than a container. And trees in containers that "small" would need a lot of TLC with precise watering, precise fertilizing, precise mix, ...

..... and regular repotting (repotting is more involved than potting up, and includes root pruning). For producing biomass, bigger (containers) is better; and unless you have significant native soil issues, trees in the ground will perform much better with less effort on your part.

What you can or should use for a medium ultimately depends on several as yet undefined factors. Your fertilizer should probably be something close to a 3:1:2 ratio (different than NPK %s).

Al

Interesting thread as i will try growing mulberry plant in container as well starting of with 1 or 2 this season.
I grow figs in containers so will try this as well.

Tapla where you been ? ; )

Hi there! figs & mulberries are very closely related - both in the family Moraceae. You can treat the entire Morus genus like you do F carica.

I've been busy .... and we have a new puppy, which seems to take more time than I remember. ;-)

Al

What was the result of this research project?