we always planted "cut" potato seeds. not just eyes.
we never coated them with anything. i've heard powdered sulfur works.
planting potatoes early gives them a head start ahead of the hot dry summer.
we planted them the old-fashioned way by hand. then dug them with a fork, hoe & shovel.
Get you some used tars...
Plant them halfsies in nar...cover em up
As they grow, throw some more dirt and add a'nutha tar
Till u get bout 6-7 tars high
Then nem vines die, just knock dem tars over and ..there ya go