Trial Type
Seeding Rate/ Varieties/ Row Spacing, Medium Yield
General Stats
County
Lincoln
Replications
4
Crop
Soybean
Seed Brand
Syngenta
Variety
NK26P3
Relative Maturity
2.6
Tillage
Conventional Till
Irrigated
No Value
Drain Tile
No Value
Previous Crop
Corn
Row Sapcing
30"
Plant Population
200000
Plant Date
01/06/2017
Cover Crop
No Value
Seed Treatment
No Value
Soil Stats
Soil Type
Fine
Soil pH
4.0
Organic Matter
No Value
Methodology
Methodology:
Four strips were planted at 200,000 seeds/acre, which were compared to the farmer’s normal seeding rate of 140,000 seeds/acre.
Results
Results:
Increasing the seeding rate from 140,000 to 200,000 seeds/acre in medium yielding soybeans (35-55 bu/acre) did not significantly affect yields when averaged over all four strips. An average yield loss exceeding 7.8 bu/ac would have been significant; this was not achieved. It appears that increasing the seeding rate to 200,000 seeds/acre may have potential to reduce yields on some soil types, such as Ws in Rep 4.
Acknowledgments:
Funding provided by South Dakota Soybean Research and Promotion Council.
Rainfall
Temperature
Applications
No
No
No
No
Fertilizer Applications
No
Insecticide Applications
No
Fungicide Applications
No
Herbicide Applications
No