United States Department of Agriculture
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Table 3. Estimated Barley Yields

With less than 2 inches of seasonal rainfall, barley will fail in most years.

Available Soil Water at Seeding to 4 Feet 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 11 inches 12 inches
1 inch 0 0 5 12 19 26 33 40 47 54 61
2 inches 0 5 12 19 26 33 40 47 54 61 68
3 inches 5 12 19 26 33 40 47 54 61 68 75
4 inches 12 19 26 33 40 47 54 61 68 75 82
5 inches 19 26 33 40 47 54 61 68 75 82 -
6 inches 26 33 40 47 54 61 68 75 82 - -
7 inches 33 40 47 54 61 68 75 82 - - -
8 inches 40 47 54 61 68 75 82 - - - -

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