Sweet potatoes

[Zingiber(Guest)]

I would like to have some informations about sweet potato farming.
The soil here is poor, compact (lot of clay); besides we have water dearth in summer ....only few rain (only sometimes), no rivers, only torrents.
So I thought sweet potatoes: could it be a good choice? What can I do so that my crop thrive?
Bye
Zingiber

[Pino(Guest)]

Hello, I'm italian and so I can tell you here in Italy almost noone grows sweet potatoes, but only simply potatoes.
I have read something about sweet potato in Wikipedia and they tell sweet potato is not so close to potato (solanum tuberosum), but she contains a lot of starch too. For this reason is an important root vegetable.
You can find more about it at this page of wikipedia:

http://en.wikipedia.org/wiki/Sweet_potato

bye
Pino