Finishing up writing a newsletter article that goes out to our clients about not letting the market dictate your rotation and AgTalk gives me a gift..."$14 beans Who's planting more beans?" The basis of this question is wrong on many levels
First, we are ignoring the fact that this is cash pricing not futures ($3/bu lower). Second, even at current futures pricing the profitability/acre is pretty dead even on corn/beans.
If we rotate out of continuous corn we are losing the acres that already paid the yield penalty, which we will pay later. How steady are your bean yields? Ours have large swings, and we can't easily add bushels to beans especially if we miss rain late season.
Last, are you going to turn around and market your acre switch or are you going to get caught in a trap? If someone is asking this that means more people are thinking of doing it. More acres = lower prices come fall