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Table 5. Estimated Winter Wheat Yields

A = Average condition with some problems such as weeds, disease, fertility, high temperatures and wind.

F = Favorable growing conditions: few weeds, no disease or insect problems, good fertility and climate.

Available Soil Water at Seeding to 4 Feet (or Early Spring) Bushels per Acre at Growing Season Precipitation of
2 inches 3 inches 4 inches 5 inches 6 inches 7 inches 8 inches 9 inches 10 inches
A F A F A F A F A F A F A F A F A F
1 inch 0 0 0 0 4 7 8 14 12 21 16 28 20 35 24 42 28 49
2 inches 0 0 4 7 8 14 12 21 16 28 20 35 24 42 28 49 32 56
3 inches 4 7 8 14 12 21 16 28 20 35 24 42 28 49 32 56 36 63
4 inches 8 14 12 21 16 28 20 35 24 42 28 49 32 56 36 63 40 70
5 inches 12 21 16 28 20 35 24 42 28 49 32 56 36 63 40 70 44 77
6 inches 16 28 20 35 24 42 28 49 32 56 36 63 40 70 44 77 48 84
7 inches 20 35 24 42 28 49 32 56 36 63 40 70 44 77 48 84 52 91
8 inches 24 42 28 49 32 56 36 63 40 70 44 77 48 84 52 91 56 99
9 inches 28 49 32 56 36 63 40 70 44 77 48 84 52 91 56 98 60 105
10 inches 32 56 36 63 40 70 44 77 48 84 52 91 56 98 60 105 64 112

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