It makes no difference to me if you want to harvest your grain when it is wet or wait until it is dry. All I can tell you is now that we have a system with bin fan controls to dry our soybeans, we’re never going back to waiting until we hit 13% moisture beans to start harvest. Our grain quality is better. Our harvest starts and ends much sooner, and we are coming out money ahead in terms of what we haul to the elevator versus our minimal cost.
In terms of corn, you will get more yield by harvesting wetter corn, but if you have to haul directly to an elevator, it will probably not be cost-effective to harvest at 20%+. Long-term, though, I would encourage you to check into getting a nice drying setup on your farm. We have a 35,000 bushel wet holding bin that we added about 10 years ago, and that was the biggest thing that allowed us to fully utilize our grain dryers. Instead of our dryers shutting down in the middle of the night, we now dry all night into the next day, so it maximizes our drying capacity. Plus, we can harvest quickly and get on to fertilizer, tillage, and everything else we’re trying to do each fall.
The most important thing I want to stress is if you simply look at the economics and consider everything involved, harvesting wet is often more profitable. Plus, it reduces your stress by giving you more time to farm each fall.