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Unpublished Paper
Soybean Row Spacing and Seeding Rate
Farm Progress Reports
  • Terry Tuttle, Iowa State University
  • Mark Licht, Iowa State University
Number
RFR-A1766
Publication Year
2018
Farm
Northwest and Allee Research and Demonstration Farms
Department
Agronomy
Abstract

Recommendations for soybean seeding rates have been targeted between 125,000 and 140,000 seeds/acre with the objective of targeting a final plant population of at least 100,000 plants/acre. It is understood a 15-in. row spacing has approximately 4.5 bushels/acre higher yields than 30-in. row spacing. Even though this advantage has been identified, the shift to 15-in. rows has not occurred. In recent years, 20-in. row spacing planters have become available. Therefore, this trial was designed to begin to look at seeding rate advantages in 20-in. rows compared with 15-in. and 30-in. row spacing.

DOI
https://doi.org/10.31274/farmprogressreports-180814-1967
Citation Information
Terry Tuttle and Mark Licht. "Soybean Row Spacing and Seeding Rate" (2018)
Available at: http://works.bepress.com/mark-licht/151/