Ideal simple machine for planting large plots of potatoes, oinions, garlic or other tubers. 
3PH mounted with ground driven conveyor lift cups that carry the seed potatoes out of the hopper and plant automatically.
The adjustable front shovel digs the furrow and the adjustable rear discs cover and hill the potatoes.
A spotter should look for any empty cups on missed potatoes.
Furrow, plant, and hill in one pass!