Ante-Nicene Fathers, Vol VIII: Apocrypha of the New Testa...
Again, on a certain day, He went forth into the field, and took a little wheat from His mother’s barn, and sowed it Himself. And it sprang up, and grew, and multiplied exceedingly. And at last it came to pass that He Himself reaped it, and gathered as the produce of it three kors, 1679 and gave it to His numerous acquaintances. 1680
The kor or chomer was, according to Jahn, equal to 32 pecks 1 pint.
380:1680