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Planting and Spacing


Planting dates in Utah vary depending local climate conditions. Planting often begins in late March in southern Utah and may be as late as earlyJune in cooler areas of northern Utah. Planting is recommended after danger of frost has passed. Local freeze dates can be accessed through the Utah Climate Center (climate.usurf.usu.edu).

Potato seed requirements depend on between and inrow spacing (Table 8.2), variety, and local conditions. Close spacing (6 - 8 inches) are used to reduce tuber size and increase the number of tubers set. Closer spacings also reduces hollow heart and growth cracks. Seed pieces should be planted 2 - 4 inches deep. For more rapid emergence, plant shallow. If soils are dry, plant a bit deeper. Rapid emergence is necessary to reduce soilborne diseases such as Rhizoctonia

Table 8.2. Potato seed requirements (lbs.) per acre for different between and in-row spacing

Seed Piece Spacing (in) 32 inch row spacing
1.5 oz. pieces
32 inch row spacing
2 oz. pieces
36 inch row spacing
1.5 oz. pieces
36 inch row spacing
2 oz. pieces
40 inch row spacing
1.5 oz. pieces
40 inch row spacing
2 oz. pieces
6 3060 4085 2725 3630 2450 3270
8 2300 3065 2040 2725 1840 2450
10 1835 2450 1630 2180 1470 1960
12 1535 2040 1360 1810 1225 1635
16 1150 1535 1020 1360 920 1225