It's not just on rice, soybean, sugar, corn, and meat. Apparently the self-sufficiency is coming to computer business too (links updated, now non-gated). Oh, maybe not totally. They expect Foxconn to come and serve domestic economy.
But the funniest comment comes from the quoted telecommunication expert. According to him, import restriction on cellphones, laptops, and tablets is necessary to block "low quality and consumer-harming" products from entering the country.