This link:
http://news.cnet.com/8301-11128_3-9966867-54.html details this:
-6000 gallons of ethanol per acre per year. A plant in Mexico is already up and running.
The 2008 USA corn harvest was 153.8 bushels per acre. I will round this off to 154 bushels. A bushel of corn weights 56lbs ---link:
http://wiki.answers.com/Q/How_much_d...bushel_of_corn
and 21 lbs of corn are needed to make one gallon of ethanol--- link:
http://wiki.answers.com/Q/How_much_c...lon_of_ethanol. So
154 bushels times 56 pounds = 8624lbs of corn in an acre
8624 lbs divided by 21 lbs = 410 gallons of ethanol production per acre.
The National Corn Growers Association posted information that 24 National Champions grew an average of 310 bushels of corn per acre link:
http://www.biofuelsdigest.com/blog2/...spite-weather/
So 310 bushels time 56 pounds = 17360 pounds of corn per acre
17360 pounds divided by 21 = 826 gallons of ethanol production per acre
This pales in comparison to the "posted" algae production figures at this time.