Maybe, maybe not. If the air is warmed some by the fan motor when blowing air in, it would allow you to run fan when there is more water in the air thus making it take less fan run time.

If air is enters from bottom it can result in soybeans stuck to the floor if you run fan when humidity is above 90%

To go from 8% to 13% it will take 3.4 lb of water per bushel

put in  40* 80%  if the average air coming out is 40* 60% then there is 0.00008 lb of water removed from the air and added to the soybeans which means it would take around 42500 ft^3 of air to change 1 bu from 8 to 13

put in  60* 80%  if the average air coming out is 60* 60% then there is 0.00017 lb of water removed from the air and added to the soybeans which means it would take around 20000 ft^3 of air to change 1 bu from 8 to 13

Cost about $2/hr (electric cost only)to run a 20000cfm fan so at 60 degrees would cost around $0.033 per 3.4 lb of water added which at $10/bu would be worth $0.566

I have had some luck adding when temps are above 50 with no controller, and almost no luck when trying to add with controller during the winter (only time when humidity is high temp is also low, very few trails both ways)