- 1). Prepare a full-sun garden bed for planting. Apply a 2-inch layer of compost over the entire bed, and one-half pound of 10-10-10 analysis fertilizer to each 10-foot row. Till the compost and fertilizer into the top 6 inches of the bed.
- 2). Cut large, sprouted seed potatoes into 1- to 2-inch pieces, leaving at least one sprout - and up to three - on each seed piece. Set the seed pieces on a tray with the cut side up, and leave them overnight so the cut sides scab over, which helps prevent rot. Small seed pieces can be left whole.
- 3). Sow the seed pieces to a 3-inch depth, and space each piece 8 to 12 inches apart in the row. Space the rows 2 to 3 feet apart. Plant each seed piece so the sprout is on top and the cut side, if applicable, on the bottom.
- 4). Water the bed after planting until the soil is moist to a 6-inch depth. Water once weekly to maintain this moisture level, or twice weekly during extended dry periods.
- 5). Cover the bed with a 2-inch layer of straw mulch once the potato plants are 5 inches tall. The mulch preserves moisture, inhibits weeds and also prevents sunburn on potato tubers growing near the soil surface.
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