CBOT May corn settled up 2 cents at $3.57-3/4 per bushel.

Additional support stemmed from broad strength in commodities, including crude oil. The 19-market Thomson Reuters CoreCommodity CRB Index rose 0.5 percent.

Analysts surveyed by Reuters expect the US Department of Agriculture on Friday to project a decline in US corn plantings for 2017 and a year-on-year rise in March 1 stocks.

Rally limited by ample global grain supplies and expectations for a large South American harvest.