Thanks for the quick replies.
Blueberries
should be mowed when they are dormant, either late fall or early spring. Often the large fields are burned instead of mowing for a couple reasons. 1. Burning kills the weeds and weed seeds. 2 burning cauterizes the plants so that diseases can't invade the tissues as easily. My field borders a wooded area and is on a hillside so I prefer to mow it for safety sake.
I grew sunchokes for the first time this year, they have yet to flower but seem to be doing well otherwise. They are about 7 feet tall and really healthy looking so I might transplant some in with the blueberries this fall. My only concern is that I'd have to be diligent about not letting them spread too much, and digging too much may be detrimental to the blueberries. But hey, it's worth a try. I could always plant different types of high-bush blueberries If it came down to it.
I have a good plot of asparagus in my garden and there is a lot that grows wild in the lower portion of my fields but none pops up in the blueberry patch so they might not like that area.
I do have a lot of wild roses that seem to like it up there with the blueberries but I really don't have a lot of use for them. I'm trying to find something to take their place.
Of
course the space is overrun with wild (useless) blackberry brambles too.
Keep the ideas coming. Thanks again.