Soybeans

Drought Projections Do Not Go Well With Fungicide Applications

By Anne Dorrance and Pierce Paul, CORN Newsletter

Several calls this past week for fungicide applications on corn and soybean at all different growth stages.  So let’s review what might be at stake here.

Soybeans.  Frogeye leaf spot and white mold on susceptible varieties when the environment is favorable for disease easily pay the cost of application plus save yield losses.  Let’s dig a bit deeper.  Both of these diseases are caused by fungi but the frogeye leaf spot is a polycyclic disease, meaning that multiple infections occur on new leaves through the season while the white mold is monocyclic and the plant is really only susceptible during the flowering stage.  Both of these diseases are also limited geographically in the state.  White mold is favored in North East Ohio and down through the central region where fields are smaller and airflow can be an issue.  Frogeye has been found on highly susceptible varieties south of 70, but it is moving a bit north so it is one that I am watching.

White mold is also favored by a closed canopy, cool nights, and high relative humidity.  So farmers in these areas should double-check their variety ratings first.  If it is moderate to low score for resistance (read the fine print) then this year a spray may be warranted.  We have gotten consistent control of white mold with Endura at R1.  Herbicides that are labeled for white mold suppression have also knocked back this disease, but if a drought occurs or no disease develops, losses of 10% or greater can occur due to the spray alone.  For these purposes, R1 is a flower on the bottom of 1/3 of the plants in the field. Continue reading →

Application of Manure to Double Crop Soybeans

By Glen Arnold, OSU Extension

Wheatfields have been or will be harvested in Ohio soon and some farmers will plant double-crop soybeans. In recent years there has been more interest from livestock producers in applying manure to newly planted soybeans to provide moisture to help get the crop to emerge.

Both swine and dairy manure can be used to add moisture to newly planted soybeans. It’s important that the soybeans were properly covered with soil when planted to keep a barrier between the salt and nitrogen in the manure and the germinating soybean seed. It’s also important that livestock producers know their soil phosphorus levels, and the phosphorus in the manure being applied, so soil phosphorus levels are kept an acceptable range. Continue reading →

Soybean Vegetative Growth Stages- VC vs V1

Article by Laura Lindsey

Stage VC - Definition: Fehr and Caviness (1977)- Unifoliolate leaves sufficiently unrolled, so the leaf edges are not touching Pederson (2009)- Unifoliolate leaves unrolled sufficiently, so the leaf edges are not touching

Stage VC – Definition: Fehr and Caviness (1977)- Unifoliolate leaves sufficiently unrolled, so the leaf edges are not touching Pederson (2009)- Unifoliolate leaves unrolled sufficiently, so the leaf edges are not touching

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. The VC definition for both methods is the same, but the differences start to appear between the methods at V1. Fehr and Caviness define V1 as “fully developed leaves at unifoliolate nodes,” which also means that there is “one set of unfolded trifoliolate leaves unrolled sufficiently, so the leaf edges are not touching.” This second definition is common in extension publications (Pedersen, 2009). Continue reading →

Ohio Soybean State of Soy Webinar

The Ohio Soybean Council will be sponsoring an Ohio Soybean State of Soy webinar on Tuesday, June 9 beginning at 10:00 a.m.  Ben Brown, Assistant Professor of Professional Practice in Agricultural Risk Management in the Department of Agricultural, Environmental, and Development Economics at The Ohio State University will be the featured speaker.

During this webinar, Ben Brown will speak on soybean market fundamentals, trade updates, and assistance programs. There is no cost to attend this program. For more information Click here.

OSU Extension Seeking Farmer Cooperators for Fallow Syndrome eFields Trial

By:  Stephanie Karhoff, AgNR, Williams County

Wet weather conditions last spring prevented Williams County farmers from planting over 85,000 acres (USDA-Farm Service Agency Crop Acreage Data). When fields are left unplanted or fallow, there may be a decline in beneficial mycorrhizal fungi, which is commonly referred to as fallow syndrome.

Mycorrhizae are beneficial fungi that colonize plant roots. They aid plants in scavenging for soil nutrients, by extending the root system via thread-like structures called hyphae. In return, plants provide sugars produced during photosynthesis to the mycorrhizae.

Stunting and phosphorus deficiency are common symptoms associated with the fallow syndrome. Continue reading →

Corn – Soybean Day in Fulton County – January 17

From Eric Richer, Fulton County Ag/NR Educator

Please hold Friday, January 17, 2020, for the annual NW Ohio Corn-Soybean Day in Archbold at Founders Hall on the Sauder Village Campus.  Program runs from 8 am to 3 pm and includes a 3 hr Private Pesticide recertification plus 1 hour fertilizer; 2.5 hrs Commercial Recertification including 2d, 2c, core and fertilizer; and 4 hours of CCA credits. Prepaid registration is $35 if postmarked by Wednesday, January 8th.  A registration form/agenda for attendees is attached; print and send in ASAP with payment.  Please see the agenda for the day, located here: 2020 Corn-Soy Day agenda

Considerations for Using Soybeans as a Cover Crop

Taken from the CORN Newsletter – Article by Laura Lindsey

From the USDA RMA website (https://www.rma.usda.gov/News-Room/Frequently-Asked-Questions/Prevented-Planting-Flooding):

“Q. Can I plant a cover crop of the same crop I was prevented from planting? Or in other words, can I use the seed I have on hand (corn, soybeans, wheat) to plant a cover crop as long as it’s at a lower-seeded rate that qualifies for the cover crop?

A. Yes. An acceptable cover crop must be generally recognized by agricultural experts as agronomically sound for the area for erosion control or other purposes related to conservation or soil improvement is planted at the recommended seeding rate, etc. The cover crop may be the same crop prevented from planting and may still retain eligibility for a prevented planting payment. The cover crop planted cannot be used for harvest as seed or grain.” Continue reading →

How many soybean acres do we need in 2019?

By: Todd Hubbs, Department of Agricultural and Consumer Economics University of Illinois
Previously published by Farmdoc Daily

We have reached the time of the year where speculation about acreage for the 2019 crops begins in earnest. While the

number of acres planted to soybeans appears set to decrease, current projections indicate an intention to plant significantly more acres than necessary to reach break-even prices in Illinois under current consumption and stock level forecasts. Continue reading →