Actually, most of our cropland now is not irrigated, IIRC. Then again, a lot of it is now in CRP. We're paying an awful lot of people not to farm dryland grain these days. I doubt the price would go up much if they were told the CRP subsidy was going away.
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The ultimate result of shielding men from the effects of folly is to fill the world with fools.
-- Herbert Spencer, English Philosopher (1820-1903)