The MDA EarthSat crop tour estimated a corn yield of a 118 bushels per acre after surveying 49 fields in Iowa, Illinois, Indiana and Ohio.

MSN: Drought slashes Midwest corn crop

"If we got three-quarters of the area planted, and the same yield as last year, we could be looking at a crop of only 11m tonnes of wheat when we actually need 14.5m tonnes of wheat for our own domestic use here in the UK, " he said.

BBC: Britain 'running out of wheat' owing to bad weather

If you are looking for yield and a cheap multiple within the chemical patch, DuPont is the cream of the crop.

FORBES: Yields Trigger Chemical Stock Reaction

Like the pork and beef industries, in the early spring of 2012, the chicken industry believed this summer would yield a bumper corn harvest, and so it upped production levels to utilize this large crop.

FORBES: Chicken

"Given that global and U.S. grain inventories remain very tight, grain prices will continue to reflect growing conditions and yield potential for both U.S. and global crop production, " Agrium said, citing a June report from the U.S. Department of Agriculture, which anticipates global grain and oilseed stockpiles to scrape 35-year lows through 2009.

FORBES: Agrium Cropping Up A Strong Year