And to think, when I was a young lad on the farm, we planted all our corn with a 2 row planter and picked that corn with a 1 row picker! Times certainly have changed.
And chances are that thing runs on autopilot too! If they are totally setup, the computer kept track of yield/mapped last year and the fertilizer can be varied accordingly. Also, with those ultra-wide planters, the individual rows speed up/slow down to keep seed spacing consistent when turning/not running in a straight line...also, will shut off rows if there is overlap on an odd shaped/sized field.