How do I group different rows in a field?

Why do farmers not harvest the few (6-10) rows of corn near the road but harvest the rest of the field?

• in the suburbs you'll see the whole field harvested but there are rows left at the edge of the field at the road. Is this to prevent blowing snow?

• Answer:

  Walt and Shalimar have valid points, here in Germany they also do this in some places to protect wildlife. Like the european field hamster, a small rodent. Like all hamsters it collects food for the winter in autumn. On a completely and early harvested field it cant find anything and therefore has almost been extinct.