The spring Agronomy and Horticulture seminar series begins with “Soybean Response to Micro-rates of Dicamba and 2, 4-D” presented by Nebraska’s Stevan Knezevic on Feb. 3.

Stevan Z. Knezevic, professor of agronomy and horticulture, will present on the off-target movement of dicamba and 2,4-D, a concern with the introduction of dicamba-tolerant (DT) and 2,4-D-tolerant (Enlist) soybeans in North America and elsewhere. Therefore, field studies were being conducted in Nebraska to evaluate glyphosate-tolerant (GT) soybean response to micro-rates (0, 1/1000th, 1/500th, 1/100th, 1/50th, 1/10th) of the label rates of dicamba and 2,4-D applied at V2, V7/R1 and R2 soybean growth stages. Both herbicides negatively influenced multiple growth parameters of GT soybeans including visual injury, plant height, physiological maturity as well as yield and yield components. In all cases injuries and yield reductions from dicamba were significantly higher than those from 2,4-D for the same rate.

All seminars are free and open to the public. Seminars will be in person, streamed live and recorded at 3:30 p.m. in Keim Hall, Room 150, unless otherwise noted.

Dates and topics for the rest of the series are as follows:

Feb. 10: “Applications of Remote Sensing in Monitoring Ecosystem Function and Biodiversity,” Ran Wang, research assistant professor and image processing specialist, School of Natural Resources, University of Nebraska–Lincoln.

Feb. 17: “Industrial Hemp Research at West Central Research, Extension and Education Center,” Milos Zaric, graduate research assistant, Department of Agronomy and Horticulture, University of Nebraska–Lincoln.

Feb. 24: Joint seminar with Animal Science.

March 3: “Navigating the Transition from Graduate Student to Faculty,” Caio Canella Vieira, assistant professor of soybean breeding, University of Arkansas. March 10: “Interseeding Cover Crops into Corn and Soybeans: What We’ve Learned,” Jenny Rees, Nebraska Extension educator, University of Nebraska–Lincoln.

March 24: “Experimentation on Nebraska Farms for Sustaining Soil Health Management,” Fernanda Krupek, graduate research assistant and Ph.D. candidate, Department of Agronomy and Horticulture, University of Nebraska–Lincoln.

March 31: Eduardo Santos, associate professor of micrometeorology, Kansas State University.

April 7: “Keeping Extension Relevant: What might the future of Extension look like?” Chris Proctor, weed science extension educator, Department of Agronomy and Horticulture, University of Nebraska–Lincoln.

April 14: A. Peyton Smith, assistant professor, Department of Soil and Crop Sciences, Texas A&M University.

April 21: Santosh Pitla, associate professor, Biological Systems Engineering, University of Nebraska–Lincoln.

April 28: Doug Golick, associate professor of science education and human dimensions of beneficial insect systems, Department of Entomology, University of Nebraska–Lincoln.

Contact: Mamie Boerner, Digital Support Associate, Agronomy and Horticulture Seminar Committee