All I remember was a little girl on a farm, and the scarecrow comes to life and I think she names it Bobo. There is a scene where the little girl is being chased by bad guys and the scarecrow runs them over with the combine. Also I think there was a scene in a grain silo where one of the bad guys gets killed by being buried in grain.

Dark Night of the Scarecrow (1981) (http://www.imdb.com/title/tt0082235/)