In the cash grain area farm tenure is one of the most important factors influencing the type of fanning. Crop-share tenancy means a high percentage of land in corn and usually a small number of livestock per farm. Heavy sale of crops off the farm tends to deplete fertility and reduce yields.

The greatest differences in farm organization, however are associated with the disposition of the crops after they are raised. On the farms studied there was but little difference in the crop rotations followed as between the principal types of farms, though there was considerable variation within each type.