by Never
Pretty good idea but a couple of agricultural points.
Sough usually means a ditch, a boggy place in Middle English, or, in Old English a deep sigh or similar sound, or did you mean sow?.
You wouldn't cut wheat to separate it from chaff but if a sickle was your cutting technology you would probably use a flail in a light wind for separation, the process being called winnowing. Sorry to be pedantic but the image messed up a metaphor the idea behind it being sound.