Table 1 State-level yield stability trends for 2010–2017.
From: Yield stability analysis reveals sources of large-scale nitrogen loss from the US Midwest
State | Area (ha) | Percentage of area (%)* | Unstable area yield class (%) | |||
|---|---|---|---|---|---|---|
Stable high yield | Stable low yield | Unstable yield | High yield | Low yield | ||
Illinois | 6,516,484 | 47 (±7) | 30 (±5) | 23 (±8) | 64 | 36 |
Indiana | 3,153,424 | 41 (±7) | 25 (±4) | 34 (±10) | 64 | 36 |
Iowa | 7,497,549 | 51 (±8) | 31 (±8) | 19 (±14) | 69 | 31 |
Michigan | 121,673 | 38 (±11) | 24 (±10) | 38 (±17) | 64 | 36 |
Minnesota | 3,894,599 | 51 (±8) | 23 (±6) | 26 (±11) | 67 | 33 |
Missouri | 1,414,243 | 41 (±10) | 29 (±8) | 30 (±15) | 61 | 39 |
North Dakota | 704,829 | 50 (±13) | 19 (±12) | 31 (±14) | 67 | 33 |
Ohio | 1,830,759 | 42 (±8) | 27 (±7) | 31 (±13) | 62 | 38 |
South Dakota | 2,064,051 | 51 (±14) | 22 (±11) | 28 (±19) | 68 | 32 |
Wisconsin | 867,204 | 52 (±5) | 31 (±3) | 16 (±5) | 68 | 32 |
Average | 46 | 26 | 28 | 65 | 35 | |
