Nope, those are #2, 3, and 4. The winner, as reported by the L.A. Times, is pot.
So, good argument for those favoring drug legalization. What's the bad news? Well, if it ever does get legalized you can bet your last blunt that Big Hemp will hire scores of lobbyist and be subsidized out wazoo. We've got to protect America's #1 crop from foreign competition after all. :P
(More seriously, I wonder if hay is subsidized. Anyone know?)
Source: Andrew Sullivan