C.O.R.N. Newsletter

To Spray or Not to Spray…Foliar Products at R3

Author(s): Laura Lindsey

The R3 soybean growth stage is a common time to consider foliar application of fungicide, insecticide, and fertilizer. Before we jump into the potential yield outcomes of these products, let’s define the R3 growth stage. A soybean plant is at the R3 growth stage when there is a pod at least 3/16 inch long (but less than 3/4 inch long) at one of the four uppermost nodes on the main stem with a fully developed trifoliolate leaf. A leaf is fully developed, and the node is counted, when the trifoliolate leaf at the node immediately above it is open (Figure 1).

Issue: 2021-23
Recommendations for Soybeans Planted in June

Author(s): Laura Lindsey

According to the USDA National Agricultural Statistics Service, 66% of soybean acreage in Ohio was planted by May 23. As soybean planting continues into June, consider row spacing, seeding rate, and relative maturity adjustments.

Row spacing. The row spacing for June planting should be 7.5 to 15 inches, if possible. Row width should be narrow enough for the soybean canopy to completely cover the interrow space by the time the soybeans begin to flower. The later in the growing season soybeans are planted, the greater the yield increase due to narrow rows.

Issue: 2021-16
Science for Success: Answering Soybean Questions

Author(s): Laura Lindsey

With funding from United Soybean Board, soybean agronomists across the U.S. are hosting a ‘Notes from the Field’ webinar series the first Friday of each month beginning May 7. Join research and extension specialists from Land Grant institutions for monthly informal discussion on production topics of timely relevance. Bring your questions!

Issue: 2021-12
Corn College and Soybean School

Author(s): Amanda Douridas, CCA , Author(s): Laura Lindsey

The Agronomic Crops Team will host a virtual Corn College and Soybean School on February 11, 2021. Corn College is in the morning, from 9:00 – 12:00pm, with Soybean School in the afternoon from 1:00-4:00pm. Each program will feature updates from OSU Specialists. CCA CEUs are available. The schedule for the day is as follows:

Corn College, 9:00am-12:00pm

Issue: 2021-03
Northwest Ohio Corn and Soybean Day - January 21

Author(s): Eric Richer, CCA

The annual Northwest Ohio Corn & Soybean Day will be held in a 100% virtual format this Thursday, January 21, 2021. Pre-registration is mandatory as you must have the Zoom link to participate. Please register by 5 pm today at www.go.osu.edu/cornsoybeanday2021. During registration, you will have the option to sign up for either the morning 8:00-11:00 am session or the evening 6:00-9:00 pm session. Attending the complete program will qualify for Ohio Fertilizer Re-certification (a.k.a.

Issue: 2021-02
2020 Ohio Soybean Performance Trial: Results from All Locations Available

Author(s): Laura Lindsey , Author(s): Allen Geyer

The purpose of the Ohio Soybean Performance Trials is to evaluate soybean varieties for yield and other agronomic characteristics. This evaluation gives soybean producers comparative information for selecting the best varieties for their unique production systems.

Issue: 2020-39
2020 Ohio Soybean Performance Trial: Henry County, Preble County, and Clinton County Yield Results Available

Author(s): Laura Lindsey , Author(s): Allen Geyer

Yield results from Clinton County have been added to the 2020 Ohio Soybean Performance Trial available online: https://stepupsoy.osu.edu/soybean-production/variety-selection/ohio-soybean-performance-trial

Issue: 2020-37
2020 Ohio Soybean Performance Trial: Henry County and Preble County Yield Results Available

Author(s): Laura Lindsey , Author(s): Allen Geyer

Henry County and Preble County results of the 2020 Ohio Soybean Performance Trials are available online here: https://stepupsoy.osu.edu/news/ohio-soybean-performance-trials-henry-co-and-preble-co-yield-results Results from the other trial locations will be added as harvest and data analysis continues.

Issue: 2020-36
Double Crop Soybean Recommendations

Author(s): Laura Lindsey

As small grains are harvested across the state, here are some management considerations for double-crop soybean production:

Issue: 2020-20
Soybean Vegetative Growth Stages- VC vs V1

Author(s): Laura Lindsey

Across the state, soybean growth and development is variable, ranging from early vegetative stages to flowering. However, there has been some confusion regarding the identification of the VC and V1 growth stages. This confusion is mostly due to two definitions of V1…that actually mean the same thing. The Fehr and Caviness Method (1977) is based on the number of nodes that have a fully developed leaf, whereas Pederson (2009) focuses more on leaf unrolling so that the leaf edges are no longer touching.

Issue: 2020-19