125K vs. 145K Seeding Rate Low Yield Zone (<35 bu/ac)

Trial Type

Seeding Rate/ Varieties/ Row Spacing, Low Yield

General Stats

County
Brown
Replications
3
Crop
Soybean
Seed Brand
Pioneer
Variety
P16A49X
Relative Maturity
1.6
Tillage
No-till
Irrigated
No Value
Drain Tile
No Value
Previous Crop
Corn
Row Sapcing
30"
Plant Population
125000
Plant Date
19/05/2018
Cover Crop
No Value
Seed Treatment
No Value

Soil Stats

Soil Type
Fine
Soil pH
4.0
Organic Matter
No Value

Methodology

Three strips of Pioneer P16A49X were planted at 125K and 145K seeds/acre on May 19.

Results

Decreasing the seeding rate from 145K to 125K increased soybean yield by 2.46 bu/ac.  This increase in yield was not significantly different.  A yield difference of 2.68 bu/ac would be required for the yields be to significantly different 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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