Response of Asgrow® AG46X26 Brand to Skippy Stands in Twin-Row and Single-Row Plantings

January 26, 2018

  • Previous learning center demonstrations have indicated that soybeans have the ability to compensate yields in response to a wide variety of issues that occur in the field. ​

  • Twin-row plantings have increased in the mid- southern planting system, resulting in questions about the effects of skippy stands that sometimes occur.​

  • This demonstration was designed as a follow-up to previous work done with twin-row plantings with additional data and incorporating into the data a set of treatments planted in single rows.

Soybean Stands, Skips, and Planting Errors

In the first part of a two part series, Jay Mahaffey addresses soybean skips, stands, and planting errors with data collected at the Scott Learning Center from 2014 to 2019. He goes over the setup and results of two studies: one simulating skipping and one simulating thin stands that are clumpy and uniform in plant distribution.

Trial Objective

Evaluate the yield compensation ability of soybeans planted in single-and twin-row systems, at a variety of populations, and with several skippy stand configurations.


Location Scott, MS 
Soil Type  Clay loam 
Planting Date 5/10/17
Harvest Date 10/20/17
Potential Yield
Seeding Rate

  • This demonstration included treatments with planting rates ranging from 60,000 to 150,000 seeds planted/acre.​

  • Single rows were on a 38-inch row spacing and were planted using conventional single-row planters.​

  • Twin rows were planted using Monosem® planters on 38-inch rows with 7.5 inches between twin rows on the bed.​

  • Plots were 6 rows x 175 feet long for a plot of approximately 0.1 acre/plot.​

  • Skips were introduced into the planted plots by blocking holes in planter plates prior to planting. This was done using the “Skipulator” spreadsheet which is an original Monsanto Learning Center at Scott, MS idea.

Treatment List:​

  • 60,000 seeds with 12-inch skip​

  • 60,000 seeds with 24-inch skip​

  • 60,000 seeds with 36-inch skip​

  • 60,000 seeds, solid​

  • 90,000 seeds with 12-inch skip​

  • 90,000 seeds with 24-inch skip​

  • 90,000 seeds, solid​

  • 120,000 seeds with 12-inch skip​

  • 120,000 seeds, solid​

  • 150,000 seeds with 1-inch skip​

  • 150,000 seeds, solid

Understanding the Results

Figure 7. Examples of random skips in two plant populations in 38-inch twin rows.
Figure 8. Using predetermined data from a ‘skipulator’, planters were programmed to randomly insert skips into each planting population.

Key Learnings

  • These results DO NOT recommending planting at low populations. ​

  • If populations are reduced and somewhat uniformly distributed, soybeans have the ability to compensate and maintain acceptable yield potential.​

  • This agrees with previous data showing tremendous compensation ability in soybean crops.​

  • Evaluate each field and situation individually.​

  • In many cases replanting is not necessary. Less-than-perfect soybean stands can be kept with reasonable expectation of maintaining yield potential.​

  • Contact your local Asgrow® representative for more information.



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2 Clubroot. 2021. Canola Encyclopedia. Canola Council of Canada.,premature%20death%20of%20the%20plant.

3 Senko, S. 2021. Not all pod shatter resistance is the same. Canola Digest.