When cutting potato tubers into pieces prior to planting, what is the proper size for the sections?

Question:

When cutting potato tubers into pieces prior to planting, what is the proper size for the sections?

Answer:

Small potato tubers may be planted whole.  Large potatoes should be cut into sections or pieces.  Each seed piece should contain one or two “eyes” or buds and weigh approximately 1.5 to 2.0 ounces.  After cutting the tubers into sections, place the freshly cut seed pieces in a humid, 60 to 70 degree Fahrenheit location for one or two days.  A short “healing” period allows the cut surfaces to callus or heal over.  Callused seed pieces are less likely to rot in cool, wet soils.  

Learn more in this article: Growing Potatoes in the Home Garden.