Although it may be an oversimplification, the annual spring planting decisions are widely viewed as a fight between corn and soybeans. However, a variety of factors can influence the outcome.The ongoing nasty winter weather in much of the U.S. – snow, ice and bitter cold – makes one wonder if spring will ever come. The fact is, however, we are in the midst of that time of year when farmers must make their spring planting decisions. Ever since 1996 and the "Freedom to Farm" legislation, U.S. farmers have had the flexibility to plant whatever crops they choose. They can base their decisions on estimated returns per acre, agronomic or rotational practices or even weather conditions.For most farmers in the Midwest, the spring planting decision...