Trial Type
Seeding Rate/ Varieties/ Row Spacing
General Stats
Soil Stats
Methodology
Treatment Information
The field was seeded at 160,000 seeds ac-1 except for four
treatment strips each seeded at 200,000 seeds ac-1.
Agronomic Information and Weather
Soybeans with a 1.4 maturity rating were no-tilled in 30” rows on
May 10. The previous crop was soybeans. Seed was treated with
insecticide, fungicide, and a B.japonicum inoculant. The field
received approx. 7.79 in. of rain and accumulated 1739 GDDs
from June 1 through August 31. This was drier and similar to the
average of 9.15 in. and 1715 GDDs.
Results
Results
On average, increasing the seeding rate from 160,000 to 200,000
seeds ac-1 did not affect yields. However, on several summit
areas, the seeding rate increase appeared beneficial. Evidence
from a 2016 on-farm trial in Brookings Co. had similar findings on
the summit positions. Additional trials with variable seeding rates
are needed in 2017.
