Tough crowd, I guess none of you make a living or even a part of your income from course grains. Until recently the average Midwestern grower received a 6% ROI. Why stick with it then? Well, at least we didn't encroach on Denver or Calf.
Oh, it takes 0.7 pints of water to produce one KERNAL of corn. Figure 1750 seeds/lbs. and 56 lbs./bushel and Iowa's 2007 average corn yield at 171 bu./acre and what do you get? Then figure an acre inch of rain equals 27,280 gallons and Iowa's average rainfall of 32".