Category Archives: Soybean

Henbit and Purple Deadnettle

Author:  Comments Off on Henbit and Purple Deadnettle

Tennessee fields annually turn a purple color around April 1.  The weed henbit (Lamium amplexicaule L.) is the main cause for this color.  It has distinct purple flowers and is one of the most commonly found plants in our row crop fields.  However, there is a close cousin to henbit, purple deadnettle (Lamium purpureum L.), that is also adding to the purple color in many fields. Continue reading

Print Friendly, PDF & Email

A Shift in Early Burndown Strategy

Author:  Comments Off on A Shift in Early Burndown Strategy

Early Burndown.  The challenge to burning down grasses before planting has become increasingly difficult in the last half dozen years. There are two reasons for the sketchy grass control with the traditional burndown application of glyphosate + dicamba.  First, the continued evolution of glyphosate resistance in ryegrass, junglerice, johnsongrass and goosegrass have made that “go-to” burndown application inconsistent. Second, we have now documented that dicamba is consistently causing glyphosate to provide poor grass control.  As such our recommendation has been to change the “go-to” burndown from glyphosate + dicamba to glyphosate + clethodim.

The problem with using glyphosate + clethodim is that the burndown will miss, or be weak on, some broadleaf weeds, most notably glyphosate-resistant horseweed.   During the meeting circuit this winter, several have asked “Is there a herbicide that can be added to glyphosate + clethodim that will provide horseweed control while not sacrificing grass control?” This caused me to go back and examine burndown research we conducted 4 and 5 years ago with Elevore and Verdict. Continue reading

Print Friendly, PDF & Email

The New UTcrops.com !!!

Author:  Comments Off on The New UTcrops.com !!!

If you haven’t noticed, our UTcrops.com website has gotten a facelift.  You may not recognize it when you first visit us at  https://utcrops.com/.  However, it’s organized similarly to the old version.  I’m sure there are a few bugs that need to be fixed, but take a look!  This site gives you ready access to essentially all UT resources related to row crop production.

 

Print Friendly, PDF & Email

Mid-South soybean variety testing database survey

Author:  Comments Off on Mid-South soybean variety testing database survey

Growing regions often cross state lines but variety test information is typically reported by state. To provide stakeholders with a clearer picture of variety performance, a project is underway to develop a web-based, Mid-South soybean variety testing database that allows end-users to summarize and filter yield, quality, and phenotypic data based on location characteristics that cross multiple states. This research is being performed as a collaborative project with the University of Tennessee, University of Kentucky, Virginia Tech, NC State, and University of Arkansas and is funded by the United Soybean Board. Input from those involved in soybean production (grower, seed industry, Extension, crop advisor) is important for developing a product that best meets the needs of stakeholders. If you are interested in providing input for this research project, the survey can be found at soybeandatabase.questionpro.com (respondents must be 18 or older). If you have any additional questions regarding this project, please contact the lead PI, Dr. Virginia Sykes, at vsykes@utk.edu.

Print Friendly, PDF & Email

2020 County Standardized Trial Handout

Author:  Comments Off on 2020 County Standardized Trial Handout

2020 CST handout_full

A special thanks to all cooperators, agents, and all others who make the County Standardized Trials Program a success.

With Covid limiting in-person meetings and office visits, I want to make available the 2020 CST handout.  The above link is available for you to use in assisting variety/hybrid selection for the coming season.  Agents, feel free to print and send out or send this attachment to your row crop producers via email.  The full report above contains data from 2019 and 2020 for corn and soybean, 2020 Wheat, and 2020 Cotton.

The following links are segments of the full report to simplify searches through all 2020 CST data.

2020 CST Corn Results

2020 CST Soybean Results

2020 CST/OVT Cotton Results

2020 CST Wheat Results

 

 

Print Friendly, PDF & Email

Soybean Herbicide Trait Summary

Herbicide resistant traits available in soybean continue to increase.  It does not seem that long ago that there was either Roundup Ready or conventional soybean.  There are no less than eight different soybean herbicide resistant traits available today with the most recent being XtendFlex soybean.  Continue reading

Print Friendly, PDF & Email