This can be used to clear out all those pesky tall grass and stuff. So go ahead and get one today! Oh wait. You don't know how to. Check this out:
Automatic Seed MachineEdit
Place two Deployers 2 blocks away and make sure they are facing each other.
Then you will have your basic seed machine.
Now put a 2.00 timer next to one and a 2.50 next to the other one.
Put a sickle in the 2.50 one, and bone meal in the 2.00 one.
Now just watch the MAGIC happen.