130K vs. 160K Seeding Rate High Yield Zone (>55 bu/ac)

Trial Type

Seeding Rate/ Varieties/ Row Spacing, High Yield

General Stats

County
Brule
Replications
2
Crop
Soybean
Seed Brand
Hefty
Variety
H28X8
Relative Maturity
2.8
Tillage
No-till
Irrigated
No Value
Drain Tile
No Value
Previous Crop
Corn
Row Sapcing
7.5"
Plant Population
130000
Plant Date
07/05/2018
Cover Crop
No Value
Seed Treatment
No Value

Soil Stats

Soil Type
Fine
Soil pH
4.0
Organic Matter
No Value

Methodology

Hefty H28X8 soybeans were planted at 130K and 160K in strips on May 7, 2018 in 7.5 inch rows.

Results

Decreasing the seeding rate from 160K to 130K increased soybean yield by 2.66 bu/ac.  This increase in yield was not significant.  A yield change of 36.49 bu/ac would be required for there to be significant differences at the 90% confidence level

 

 

Acknowledgements:

Funding for this research project was provided by the South Dakota Soybean Research and Promotion Council. The authors would also like to thank the soybean producers who participated in this project.

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