us farmland acres are expected to produce fewer bushels of soybeans than previously anticipated the us department of agriculture said tuesday in its monthly world supply and demand report the usda projected us soybean yield at 512 bushels an acre down from its forecast last month of 515 bushels an acre analysts surveyed by the wall street journal had expected the yield to be revised higher to 519 bushels an acre lower yields in indiana iowa ohio and kansas account for most of the change in production the usda said in the report corn yields are likely to be at 177 bushels an acre up from 1765 bushels an acre projected in octobers report while this is higher than the analysts average forecast of 1768 bushels an acre the usda reduced its expectations for ending stocks because of improved demand for corn from the ethanol market in reaction to tuesdays report grain futures trading on the chicago board of trade surgedwith mostactive soybean futures up 24 after being down 03 before the reports release corn futures are up 15 after being down 06 prereport