Pretty straight forward.
I removed an area of the bark just above the base. I placed a disk around the trunk just below the top cut and I also applied Clonex gel to the top cut. The soil mix I use for nursery stock is 70% coco coir and 30% perlite. Then I just let the tree grow wild all of last year.
I did 4 trees like this and they all turned out the same.
Hope that helps.