Soybean Growth and Development

C.O.R.N. Newsletter Articles

  1. Recommendations for Soybeans Planted in June

    Author(s): Laura Lindsey

    According to the USDA National Agricultural Statistics Service, 36% of soybean acreage in Ohio was planted by May 22. As soybean planting continues into June, consider row spacing, seeding rate, and relative maturity adjustments.

    Issue: 2022-16

  2. Soybean Planting Progress and Vegetative Growth

    Author(s): Laura Lindsey

    Cool, wet weather in April and early May delayed soybean planting progress; however, with some warmer and drier days, soybean planting was 18% complete by the second week of May (Table 1). Soybeans that were planted the end of April or first week of May are likely at the VC growth stage or will be at the VC growth stage soon (Figure 1).

    Table 1. Percent soybean acres planted in Ohio by week for the past five years (USDA NASS).

    Issue: 2022-15

  3. Western ARS Agronomy Field Day, Wednesday July 17, 2019

    The Western Agricultural Research Station Agronomy Field Day will be held July 17th. The station is mostly planted but everything went in on the edge – as you saw it on your farm too. Hear our researchers thoughts and recommendations on how to manage this interesting season.

    A couple of items we will walk through are:

    Issue: 2019:20
  4. R3 Stage Soybean

    What is the R3 Growth Stage?

    Author(s): Laura Lindsey

    A few weeks ago, Dr. Anne Dorrance wrote an article about foliar fungicide application to soybean for control of frogeye leaf spot disease. She recommended spraying at the R3 growth stage. (Her entire article is here: https://agcrops.osu.edu/newsletter/corn-newsletter/2018-19/we-have-found-some-whiskers-spores-cercospora-sojina).

     

    What is the R3 growth stage? And has it already passed?

     

    Issue: 2018-23

  5. Diagnosing Soybean Seedling Issues in 2018

    Author(s): Anne Dorrance , Author(s): Kelley Tilmon , Author(s): Laura Lindsey , Author(s): Mark Loux

    It seemed to take forever this spring, but hopefully all of your soybeans are planted – for the first and only time.  Ohio’s biggest challenge is replanting; it is costly (new seed, cost of planting, lower yields due to delay in planting).  The first step is assessing overall stand health – do you have enough plants to obtain the best yields?  Based on a substantial amount of data, for soybeans planted in May, a harvest population of at least 100,000 plants/acre is generally adequate to maximize yield.

    Issue: 2018-17
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