Corn futures are trading higher at midday. Short-covering and support from better than expected weekly export sales are supporting the market. Commitments last week totaled 39.2 million bushels versus trade expectations of 16-24 million. March is 2 3/4 cents higher at $1.97 3/4.

Soybean futures are higher at midsession. Firm cash markets and weekly export sales coming in just above expectations have triggered some short-covering. Weekly export sales totaled 20.2 million bushels. March is 6 3/4 cents higher at $5.17 1/2.

Wheat futures are trading higher this morning. Overnight export business with Japan and Iraq helped support the market along with weekly export sales coming in above expectations. Weekly sales of 17.4 beat low pre-report estimates. CBOT Mar is 2 3/4 cents higher at $2.92 3/4, KCBT Mar is 2 cents higher at $3.30 and MGE Mar is 1 1/4 cents higher at $3.42.

Cattle futures are lower at midday. Plans to reopen the Canadian border for cattle under 30 months of age on March 7 continues to weigh on the market. There is also concern that the rally in beef prices has stalled. April is 95 cents lower at $87.18.

Lean hog futures are lower at midsession. Cash markets are lower again as packers are able to lower bids and still get plenty of hogs for slaughter. The April contract's premium to cash is also a negative factor. April is 75 cents lower at $73.03.