MOST of the labor---agricultural and otherwise --- in antebellum Arkansas was done by WHITE MEN OF MILITARY AGE. You put 60, 70, 80, 90% of those fellows in butternut and blue and the economic impact is going to be TERRIFIC. Add to that the steady decline in the number of slaves and you have a double whammy. Result: famine, despair, depopulation, malnourishment, epidemics, and , of course, ever lower levels of economic output. The inevitable outcome is a downward spiral that cannot be reversed.
An agrarian society at war must tread a very thin line between mobilization and economic collapse. Arkansas --and the Confederacy in general --- went way over the line.
Boy, this is more fun than poking a stick into an ant nest!