Root Production or Stimulation

Repotted and defoliated this Surinam Cherry. It’s in partial sun in the morning and rest of the day in shade. Is this the proper location? What can be done to stimulate root growth and how should watering be done ?image

I don’t know any specifics for surinam cherry, but the basic approach is to put the tree in enough sun to warm the pot as this can stimulate new roots as long as it doesn’t get too hot.