Corn prices fell for the second straight session Tuesday on relief over news that farmers planted more corn this year than traders expected.

Soybeans, however, reached another record high. Monday’s crop report from the U.S. Department of Agriculture showed that while corn acreage was higher than anticipated, the number of acres planted with soybeans was smaller.

Commodities prices _ from corn and soybeans to crude oil and gasoline _ have been soaring this year due to supply concerns, as well as the tumbling U.S. dollar. When the dollar is weak, the dollar-denominated commodities are regarded as hedges.

Though worries about corn supplies were alleviated a bit by Monday’s crop report, they are far from erased.

“Corn is taking a breather, but by no means are people confident that the highs are in. Summer weather can be very fickle,” said Richard Feltes, senior vice president and director of MF Global Research. He said weather forecasters are calling for drier, hotter weather in July and August, but that other phenomena _ for example, an early frost _ could still threaten corn.

“People are still on edge about corn,” Feltes said.

Traders are also anxious to see whether the USDA will release acres from its conservation area for farming, and whether the Environmental Protection Agency will relax the ethanol mandate. The EPA has required 9 billion gallons of corn-based ethanol to be blended into gasoline _ a requirement that has also adding to corn’s runup in price.

Corn for December delivery fell 7.75 cents to $7.4925 a bushel on the Chicago Board of Trade. On Monday, the contract fell sharply after reaching a record in Friday’s trading of $7.96 a bushel.

Soybeans for November delivery rose 20 cents to $15.94 a bushel, after hitting a new record of $16 a bushel in earlier trading.

Wheat prices also climbed on the CBOT. The September wheat contract rose 9.25 cents to $8.68 a bushel.

In the energy markets, light, sweet crude oil rose $2.31 to $142.31 a barrel. On Monday, crude hit an all-time high of $143.67 a barrel before retreating.

Meanwhile, on the Nymex, precious metals prices rose. Gold for August delivery advanced $17.70 to $946 an ounce; July silver rose 61 cents to $18.03 an ounce; and July copper rose 1.5 cents to $3.8975 a pound.