seed potatoes which and how many

i have an area of around
40ft x 35 ft set aside for spuds for this year  not sure of how many sets of each i would need for a family of 7  with earlies maincrop etc any ideas on what to do  :?:

cheers    

Iain@JBA:

What would you say the planting depth and distance is for Maris Bard earlies?  Also, how high would you recommend earthing them up to?

Plant them 6" deep and 12" apart if you want a good size crop or you could plant them closer if you don't want to grow them as big.
As for earthing up probably 8-10" high like a pyramid.
I have a video in the growing instructions on my site about planting and earthing up seed potatoes if you are unsure.