Record-Breaking Corn, Soybean Crops: U.S. farmers are harvesting their biggest corn crop ever this year, the government said. The crop is 20% larger than in 1991--so big it will jam grain bins and keep prices as much as 50 cents a bushel below last year's level. The crop's yield, estimated at 123.8 bushels an acre, marks the first time the U.S. average has topped 120. In its monthly crop report, the Agriculture Department also pegged the soybean crop at 2.11 billion bushels, the largest in a decade. The government forecasts were modest changes from a month ago--corn up 2% and soybeans up 1%.