Current Projects
Comparison of dicamba salt formulations on dicamba volatility when evaluated in low-tunnels using soybean as a bio-indicator
Funding: Dow AgroSciences
Crop Productivity and Quality: Soybean Management with Appropriate Research and Technology (SMART) Farms
Funding: USAID
Dicamba volatility under field conditions
Funding: Mississippi Soybean Promotion Board, Project No. 44-2018
https://www.mssoy.org/uploads/files/44-2018-reynolds-dic-vol-ann-rep.pdf
Evaluating Nutrient Availability Following Cover Crops in Mississippi Soybean Production Systems
Funding: Mississippi Soybean Promotion Board, Project No. 40-2022
Evaluation of palmer amaranth control with summer and winter annual cover crops alone and coupled with herbicides
Funding: Mississippi Soybean Promotion Board, Project No 46-2018
https://www.mssoy.org/uploads/files/46-2018-reynolds-cc-weeds-annual-report.pdf
Evaluation of Volatility in Warrant/Dicamba PREMIX Formulations in a Hoop House
Funding: Monsanto
Fertility and Agronomic Resource Management Extension and Research for soybean (FARMERs) Program
Funding: Mississippi Soybean Promotion Board, Project No. 02-2022
Increasing planting speed using off-the-shelf precision planting technology
Funding: Mississippi Soybean Promotion Board, Project No. 11-2022
Investigations of off-target movement of Dicamba
Funding: United Soybean Board
Is Mississippi irrigation water accumulating salts in soil and potentially limiting soybean growth?
Funding: Mississippi Soybean Promotion Board, Project No. 66-2022
Low Tunnel Volatility Comparison of First Generation XtendiMax and RoundupXtend Formulations with Second Generation High Load Formulations When Applied at a 4X Rate
Funding: Monsanto
Optimizing Chloroacetamide Placement in an Xtend Soy System
Funding: Monsanto
Primary versus secondary loss with Engenia® herbicide on a large-scale basis
Funding: BASF
Reducing herbicide antagonism through novel spray application methods and improved understanding of herbicide antagonism chemistry
Funding: Mississippi Agricultural and Forestry Experiment Station
Herbicide antagonism poses a significant cost for the agricultural industry and growers - totaling in the millions of dollars every year due to reduced herbicide activity. Antagonism is defined as when a combination of two or more herbicides shows reduced weed control compared to each herbicide applied alone. Some significant unknown factors of herbicide antagonism are the chemical reactions that occur which may tie-up or bind up the active ingredient of the herbicide. Furthermore, increasing instances of herbicide resistant weeds has driven the industry to recommend more than one herbicide per tank mix, which further increases the likelihood that antagonism occurs. When growers and applicators have to reapply herbicides due to poor weed control, this costs them additional time and money as well as increases the overall load of herbicides into the environment. Reducing herbicides in the environment and managing weed problems is a goal that can be achieved. When applications work the first time, the grower is saved from reapplication which further reduces herbicide loads in the environment.
With increased acreage of herbicide tolerant crops that can be sprayed with a synthetic auxin herbicide also increases the likelihood of an antagonism event happening due to synthetic auxin interaction with numerous herbicide modes of action. With an increasing number of tank mix applications occurring, the prevalence of herbicide antagonism will likely continue to impact application outcomes. This project will examine novel herbicide application methods to try to overcome the antagonism that can occur with some herbicide combinations. The project will also seek to understand the chemical reactions occurring within a given herbicide mix to improve recommendations to growers and spur improved herbicide formulations. Lastly, this project will seek to understand the chemistry of what occurs when two herbicides antagonize each other, which represents a major knowledge gap.
Research to Integrate Best Management Practices for Glyphosate-Resistant Weeds in Soybean Production Systems
Funding: United Soybean Board
The Effect of Various Tank Mix Partners on Dicamba Volatility with Xtendimax and RoundupXtend Applied at a 4X Rate as Measured by Low Tunnels
Funding: Monsanto
Xtend Soybean System Comparison - South
Funding: Monsanto
Completed Projects
2,4 D and Dicamba Resistant Soybeans: Stewardship and Testing
Funding: Mississippi Soybean Promotion Board
Application time of day (TOD) effect on glufosinate when tank-mixed with clethodim on barnyardgrass efficacy
Funding: Mississippi Soybean Promotion Board, Project 44-2014
https://www.mssoy.org/uploads/2015/06/44-2014-REYNOLDS-SPRAYING-TOD-FINAL-REP-FINAL.pdf
Determining the effect of 2,4-D rate and application timing on soybean growth and yield
Funding: Mississippi Soybean Promotion Board, Project No. 42-2014
https://www.mssoy.org/uploads/files/42-2014-final-rep-24-d-final.pdf
Determining the effect of dicamba rate and application timing on soybean growth and yield
Funding: Mississippi Soybean Promotion Board, Project No. 42-2014
https://www.mssoy.org/uploads/files/42-2014-final-rep-dicamba-final.pdf
Evaluation and development of effective tank cleanout procedures following use of auxin herbicides
Funding: Mississippi Soybean Promotion Board, Project No. 44-2017
https://www.mssoy.org/uploads/files/44-2017-reynolds-tank-clnt-final-report.pdf
Evaluation of dicamba drift when applied to soybean under field conditions
Funding: Mississippi Soybean Promotion Board, Project 45-2014
https://www.mssoy.org/uploads/2015/08/45-2014-REYNOLDS-DICAMBA-DRIFT-ANN-REP.pdf
Evaluation of spray nozzle selection on dicamba drift effects when applied under field conditions
Funding: Mississippi Soybean Promotion Board, Project 45-2014
https://www.mssoy.org/uploads/2015/08/45-2014-REYNOLDS-SPRAY-NOZZLE-FINAL-REP.pdf
Herbicide Efficacy and Economic Return as Affected by Precision Agriculture Technology
Funding: Mississippi Soybean Promotion Board
Investigations of Off-Target Movement of Dicamba
Funding: United Soybean Board
Soybean Management by Application of Research and Technology (SMART)
Funding: Mississippi Soybean Promotion Board
Tank Cleanout
Funding: Valent USA
The effect of best management practices with engenia on dicamba drift
Funding: Mississippi Soybean Promotion Board, Project 45-2014
https://www.mssoy.org/uploads/2015/08/45-2014-REYNOLDS-ENGENIA-ANNUAL-REP.pdf
The use of bolt soybean to mitigate off-target deposition of grasp and regiment applications to rice
Funding: Mississippi Soybean Promotion Board, Project 45-2016
https://www.mssoy.org/uploads/files/45-2016-reynolds-bolt-tech-final-report.pdf
Weed Management Programs for Mississippi Soybean Production
Funding: Mississippi Soybean Promotion Board