The growing cost of growing wheat

Walla Walla Union-Bulletin:
…“I’m not sure anyone is aware of it, but energy prices are quickly making the continuation of wheat farming questionable unless something begins to change soon,’ said Walla Walla County farmer Nat Webb.
Over a relatively short period of time, fuel prices have tripled and the cost of fertilizer has doubled, Webb and others said….
union-bulletin.com
 
Relatedly, I found this information recently on another board:
World grain stocks have been in decline for years – 1 in the last 7 had an increase. Since hungry people don;t make the market, it hasn’t responded:
FAS        2000        2001        2002        2003        2004        2005        2006

Wheat        208        206        201        166        131        148        140
Rice        .147        141        137        107        86        73        66
Other        211        189        177        143        132        173        148
                                                       
Total        566        536        515        416        349        394        354
Change                -30        -21        -99        -67        45        -40

(compiled from www.fas.usda.gov/psd/intro.asp?circ_id=1, millions of tons in storage at end of year)