Northwest and Allee Research and Demonstration Farms

Soybean Variety by Row Spacing and Seeding Rate

Authors: Mark Licht (Iowa State University) , Emily Wright (Iowa State University) , Terry Tuttle (Iowa State University)

  • Soybean Variety by Row Spacing and Seeding Rate

    Northwest and Allee Research and Demonstration Farms

    Soybean Variety by Row Spacing and Seeding Rate

    Authors: , ,

Abstract

Recommendations for soybean seeding rates have been targeted between 125,000 and 140,000 seeds/acre with the objective of 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.

How to Cite:

Licht, M. & Wright, E. & Tuttle, T., (2019) “Soybean Variety by Row Spacing and Seeding Rate”, Iowa State University Research and Demonstration Farms Progress Reports 2018(1).

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Published on
25 Apr 2019