Other dealers reported slow country movement of both soya and corn as producers awaited higher prices.
"They've got a $2 target on (cash) corn and $5.70 on beans. Until we get there, they are not going to do anything," an Illinois River dealer said.
Grain merchants said muddy conditions and seasonal weight restrictions on rural roads slowed the physical movement of grain in parts of Illinois, Indiana and Michigan.
Corn bids held steady in most locations but values were mixed in Nebraska. The processor basis for corn firmed 3 cents late Tuesday at Blair, Nebraska, while bids were down 4 cents at Lincoln.
River corn bids firmed, reflecting stronger CIF values for corn at the US Gulf, However, rising barge freight costs helped offset the increase.
River soyabean bids were mixed. CIF soya values were weaker early Wednesday as exporter demand softened.