This robot plows and tills the soil to loosen the ground to prepare the earth for planting.
This robot comes along to punch holes for seeds to be planted in.
P.S. This robot only works in very loose soil.
This robot plants the actual seeds, but to save money in the pictures it didn't plant seeds because it didn't get any.
There's a conveyor belt to hold the seeds, which dispense as the wheel moves and the robot goes forward.