Harvest means corn ears and most of the stalk are removed from fields generally in autumn. Many farmers in Iowa leave stubble (including the root system) in place to not disturb soil layers. This practice results in less erosion and reduced loss of nutrients. The next crop is generally planted only inches away from these former plants, allowing a season or two of non worked soil. On this early March day, stubble also serves as forage for fattening black angus cattle.