On 2011-11-04, David WE Roberts wrote:

For containers I would normally renew the compost each year - much easier to
do than when working directly in the ground.
You can add nutrients, clean out the containers, and generally avoid any
problems with infections and weeds left over from the previous crop.
Contents of the containers to go into a compost heap, perhaps, for future
use in your containers once roots and stuff have had time to compost down.

Yes, I suppose one of the benefits of growing in containers ought to
be not having to worry about rotation. I'll do it that way.