CBOT corn loses steam amid lacking demand

CHICAGO, April 15 (Reuters) - Chicago Board of Trade corn futures ticked lower on Tuesday on lackluster demand, though an export sale of U.S. corn to Portugal on Tuesday morning helped lend support to prices.

• CBOT May corn CK25 settled down 3-3/4 cents to $4.81-1/4 per bushel.

• July corn CN25 ended down 3-1/4 cents to $4.89-1/2 a bushel.

• Futures were also supported by a weak dollar, which makes U.S. farm goods cheaper for overseas buyers. The U.S. dollar index .DXY is sitting near three-year lows after U.S. President Donald Trump's tariff policies shook global markets. USD/ MKTS/GLOB

• Exporters struck deals to sell 110,000 metric tons of U.S. corn to Portugal for 2024-25 delivery, the U.S. Department of Agriculture said in a daily reporting system.

• The USDA said on Monday that 4% of the nation's crop was seeded, below analysts' estimates for 6%.

• Rains this weekend are expected to limit field work, including in the parts of the Delta and Ohio Valley regions, Commodity Weather Group said.

• Excess rains have delayed corn seeding in parts of the U.S.