Grain futures were mostly lower Tuesday on the Chicago Board of Trade. Sept. corn was down 0.25 cent at $3.99 a bushel. Sept. wheat was unchanged at $5.50 a bushel. Sept. oats ...

Grain futures were mixed in early trading Tuesday on the Chicago Board of Trade. Sept. corn fell by 3.75 cents at $4.00 a bushel. Sept. wheat was up 0.75 cent at $5.43 a bushel.