Not with the in-game editor, which randomly creates resources that are at least 3 squares apart. In the 21-square grid surrounding the city, you can only have 5 special resources, max. (Shields on grasslands do not count as a special resource. Rivers also do not count for the purpose of "seeding" the map.)
If you mean by surrounding your city with wheat/food-producing squares, then yeah, totally possible.
The largest city possible in-game is one built atop 5 plains w/wheat (or desert w/oasis... or more if you use the Airbase bug) and 16 grassland squares. For trade-token bonuses (which translate into tax/luxury/science tokens), it would be nice if these had rivers and shields too.
With farming (or airbases), you would get 4 food from each grass square and 6 from the five others, giving your city a base potential of 47. With added food trucks (from your other cities), you can feed the size of that one city even more...
Some more reading if you're interested: zompist.com/winciv2.htm forums.civfanatics.com/showthread.php?t=96725
-=PakoPako=- "This was brought to you by FRUNGY,the Sport of Kings!"