What does "stubble" mean?

Stubble: The stumps of wheat, rye, barley, oats, or buckwheat, left in the ground; the part of the stalk left by the scythe or sickle. "After the first crop is off, they plow in the wheast stubble." Mortimer. Stubble goose (Zoöl.), the graylag goose. [Prov. Eng.] Chaucer. -- Stubble rake, a rake with long teeth for gleaning in stubble.