CHICAGO: Corn futures on the Chicago Board of Trade ended mostly higher on Friday, with the spot March contract touching a near three-week high near the closing bell after spending most of the session in negative territory.

Market weighed at times by profit-taking after Thursday's 1.4 percent rally and farmer selling.

Export demand supportive; USDA said private exporters reported sales of 110,000 tonnes of US corn to Spain for delivery in 2013/14.

US grain movement may slow next week as a series of winter storms slam into the Midwest, with the first round of snow arriving Friday into Saturday.

Wintry weather prompted Ukraine's national railway to restrict cargo deliveries to the Black Sea port of Odessa and Russia to halt grain exports from the port of Novorossiisk.