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Corn production is forecast at 13.6 billion bushels, down 4 percent from last year’s record production and down less than 1 percent from the August forecast. Based on conditions as of September 1, yields are expected to average 167.5 bushels per acre, down 1.3 bushels from the August forecast and down 3.5 bushels from 2014. If realized, this will be the second highest yield and third largest production on record for the United States. Area harvested for grain is forecast at 81.1 million acres, unchanged from the August forecast but down 2 percent from 2014.

Soybean production is forecast at 3.94 billion bushels, up slightly from August but down 1 percent from last year. Based on September 1 conditions, yields are expected to average 47.1 bushels per acre, up 0.2 bushel from last month but down 0.7 bushel from last year. Area for harvest in the United States is forecast at a record 83.5 million acres, unchanged from August but up less than 1 percent from 2014.

http://www.usda.gov/nass/PUBS/TODAYRPT/crop0915.pdf