On average, planting 2 bushels per acre appears to work for most varieties. In Figure 1, the average percent error in seeding rate for different varieties is shown as green bars. On average, most varieties have less than a 10 percent error from the 30 to 35 seeds per square foot target. Only AgriPro Hickory would be over-seeded by almost 30 percent. When looking at the average, planting 2 bushels per acre looks good for many varieties.
All varieties are extremely under-seeded.
The two NKC varieties are nearly 20 percent under-seeded. Pioneer 2643 is 20 percent over-seeded. In other years, the same varieties will be under-seeded, potentially reducing yield. Other Small Grains Oats should be planted at 2 bushels per acre. Rye at 1 to 1.5 bushels per acre.