CHICAGO: Chicago Board of Trade corn futures ended narrowly mixed on Wednesday as spillover strength from soybean and wheat futures offset pressure from favorable US crop weather that should bolster yield prospects, traders said.

CBOT July corn settled 1/4 cent lower at $3.24 per bushel while new-crop December ended 1/4 cent higher at $3.28-1/4.

A softening dollar lent support, in theory making US grains more competitive on the world export market.

The US Energy Information Administration said weekly production of corn-based ethanol rose for a fifth week, to 765,000 barrels per day, while stockpiles fell for a sixth week to 22.476 million barrels.