200K vs. 130K Seeding Rate Medium Yield Zone (35 to 55 bu/ac)

Trial Type

Seeding Rate/ Varieties/ Row Spacing, Medium Yield

General Stats

County
Brule
Replications
2
Crop
Soybean
Seed Brand
Hefty
Variety
28X8
Relative Maturity
2.8
Tillage
No-till
Irrigated
No Value
Drain Tile
No Value
Previous Crop
Corn
Row Sapcing
7.5"
Plant Population
200000
Plant Date
02/05/2018
Cover Crop
No Value
Seed Treatment
No Value

Soil Stats

Soil Type
Fine
Soil pH
4.0
Organic Matter
No Value

Methodology

Hefty 28X8 soybeans were planted at 200K and 130K in strips on May 2, 2018 in 7.5 inch rows.

Results

Decreasing the seeding rate from 200K to 130K had little effect on soybean yield (0.13 bu/ac).  A yield change of 4.36 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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