Unfortunately farmers everywhere get subsidies: A lot of European farming would collapse and be replaced by farming done in the southern hemisphere if there weren't subsidies.
As for too much corn, it's a purely economical plan: There's rotation with soybeans in most of the midwest because corn-corn-sobeans is more profitable and treats the land better. Your typical farmer would change to anything else that makes more money per acre, especially if it needs fewer treatments.
As for the total acreage, corn is the second highest in land coverage. There's a worse one: Lawn grass. It just sits there, requires a bunch of maintenance, and produces no economic output. It's often also mandatory: My county's minimal ratios mean 75% of my property has to be well maintained lawn
> Your typical farmer would change to anything else that makes more money per acre
As a grain farmer, I would want cooler tech first (which, granted, would follow if the money was there). I chose grain farming because it has the best toys.
As for too much corn, it's a purely economical plan: There's rotation with soybeans in most of the midwest because corn-corn-sobeans is more profitable and treats the land better. Your typical farmer would change to anything else that makes more money per acre, especially if it needs fewer treatments.
As for the total acreage, corn is the second highest in land coverage. There's a worse one: Lawn grass. It just sits there, requires a bunch of maintenance, and produces no economic output. It's often also mandatory: My county's minimal ratios mean 75% of my property has to be well maintained lawn