Peah may not be reaped with sickles, or dug up with spades, so that they do not strike one another.

There are three appearances during the day: in the morning, at noon, and in the afternoon. Rabban Gamliel says: They said this only so that [people] should not make fewer. R' Akiva says: They said this only so that [people] should not make more. [The people] of Beis Namer used to pick along a rope and give peah for each and every row.