Has anyone investigated this rock dust as a bonsai soil amendment? It seems to supply many of the minerals that Ryan has mentioned as lacking in current bonsai practise - rich in calcium, magnesium and silica while capturing carbon from the air.
Are there local bonsai practitioners able to comment on the longstanding research projects in forests in the eastern USA and Northern Europe?
It seems to be recommended for increased crop yield from broad leaf plants but I’m assuming there are coniferous plants in both of the forested areas researched.
My read is that it would require a light hand in application to mature trees but might be very useful in application to pre-bonsai.
I would appreciate hearing of other thoughts and any experience.