Agronomy and Horticulture Seminar Series

Spring 2021 Seminars

Spring seminars will be presented via Zoom beginning at 3:30 p.m. CST/CDT.

Join at: https://go.unl.edu/agrohortseminar

DOWNLOAD Spring 2021 Seminar Schedule

January 29, 2021

Management of Herbicide-resistant Palmer Amaranth in Minor and Specialty Crops Within the High Plains

NEVIN LAWRENCE
Assistant Professor and Weed Management Specialist, Department of Agronomy and Horticulture, University of Nebraska–Lincoln

Herbicide-resistant Palmer amaranth is a recent arrival to the Panhandle of Nebraska and surrounding regions, and many of the crops grown within the region have limited herbicide options. Lawrence will review the previous five years of research and extension efforts he has undertaken to better understand Palmer amaranth, and to provide stakeholders with options to manage a difficult but increasingly common weed species.

February 5, 2021

Oil Palm Production and Conservation of Natural Resources: Can We Get It All?

PATRICIO GRASSINI
Associate Professor and Cropping Systems Specialist, Department of Agronomy and Horticulture, University of Nebraska–Lincoln

While the environmental impact associated with oil palm expansion in Indonesia has received lot of attention, there is little dialogue on a solution agenda that could help the country to reconcile economic and environmental goals. This seminar presents results from a UNL project that aims to find that balance via intensification, that is, by increasing productivity on existing cropland.

February 12, 2021

Soil Health — How Management is Affecting the Pulse of Soil

ALAN FRANZLUEGGERS
USDA-ARS, Raleigh, North Carolina

Soil is alive, and how we manage it reveals to us our ecological influence. We can be dominating or nurturing and soil will let us know what it can tolerate from us. This presentation will focus on soil ecology and management issues relevant for achieving more sustainable agricultural systems.

February 19, 2021

Coexisting with Fire in Rangelands

VICTORIA M. DONOVAN
Postdoctoral Research Associate, Department of Agronomy and Horticulture, University of Nebraska–Lincoln

Large wildfires have surged in recent years in the Great Plains. While fire is a fundamental rangeland ecosystem process, it can also pose a risk to human life and infrastructure. How can we coexist with fire? Donovan will present recent research on changing wildfire patterns and suggest directions for future management.

February 19, 2021

People, Fire and Global Biome Divergence in the 21st Century

RHEINHARDT SCHOLTZ
Affiliate, Department of Agronomy and Horticulture, University of Nebraska–Lincoln

In the 21st century, we find ourselves faced with uncertainty in managing our terrestrial ecosystems. In fact, our planet faces major anthropogenic threats to the functioning of many ecosystems. This talk covers how society and the age of information can better conserve our landscapes. 

February 26, 2021

Aerial Application in the United States: Best Practices and Future Directions

BRADLEY FRITZ
Agricultural Engineer and Research Leader, Aerial Application Technology Research Unit, USDA-ARS, College Station, Texas

Aerial application accounts for a significant portion of all the crop protection and production products applied in the United States. Reaching nearly all commercial crops and the majority of forestry acres, the continued improvement and use of technologies and management practices is critical to ongoing industry sustainability, crop yield and environment protection. We will discuss some of the key issues, management practices, decision support technologies and directions for future growth for aerial application in the US.

Note: This presentation video will not be posted to the website.

March 5, 2021

Teaching Landscape Systems

DAN UDEN
Assistant Professor, School of Natural Resources, Department of Agronomy and Horticulture, Center for Resilience in Agricultural Working Landscapes, University of Nebraska–Lincoln

Landscape systems surround us, are tightly linked to human wellbeing, and are under increasing pressure, which makes understanding their abilities to function in the face of stressors and change essential. This seminar will overview continuing efforts to develop coursework for landscape system assessment across UNL departments.

March 12, 2021

The Summing Up: One Person’s Life with Small Grains

P. STEPHEN BAENZIGER
Professor, Department of Agronomy and Horticulture, University of Nebraska–Lincoln, and Nebraska Wheat Growers Presidential Chair

After receiving his Ph.D. in 1975, P. Stephen Baenziger worked all of his career as a small grain breeder (wheat and barley and later adding triticale). Baenziger will offer his reflections on working at the USDA-ARS, Monsanto, and for the last 34 years at the University of Nebraska-Lincoln and what it means to be a plant breeder.   

March 19, 2021

The Physiological Basis for Greater Growth and Improved Persistence of Alfalfa Fertilized with Phosphorus (P) and Potassium (K)

JEFFREY J. VOLENEC
Professor, Department of Agronomy, Purdue University, West Lafayette, Indiana

While generally accepted that P and K fertilization improve alfalfa performance, the underlying mechanisms resulting in higher forage yield and better persistence are not well understood. We analyzed yield components and taproot C and N reserve pools over 7 years for plants provided 4 rates of P and 5 rates of K. We used ANOVA, clustering, and logistic regression to analyze the results. Imbalanced P and K nutrition reduced persistence and yield when compared to plants provided balanced P and K fertilization and the unfertilized control plots. Taproot N reserves were often associated with high yield and good persistence.

March 26, 2021

How Can Transferable Biology and Breeding Contribute to Improving Food Systems and Climate Change?

EDWARD BUCKLER
Professor, USDA-ARS at Cornell University, Ithaca, New York

April 2, 2021

From Plant Proteins and Metabolites to Protein Networks and Metabolic Pathways

SOPHIE ALVAREZ
Research Associate Professor, Department of Agronomy and Horticulture, Director of the Proteomics and Metabolomics Facility, Nebraska Center for Biotechnology, University of Nebraska–Lincoln

Proteomics and metabolomics are two of the “omics” technologies that are still underrepresented in plant biology despite their well-recognized value to crop science. With the help of examples, this talk will show how using these approaches contribute to advancing our understanding of plant coping strategies and defense mechanisms when they are under stress.

April 9, 2021

TBA

RUTH WAGNER
Head of Data Science & Analytics at Bayer Crop Science, St. Louis, Missouri

Note: This presentation video will not be posted to the website.

April 16, 2021

Management of Herbicide-Resistant Weeds: Challenges and Opportunities

RODRIGO WERLE
Assistant Professor and Extension Cropping Systems Weed Scientist, Department of Agronomy, University of Wisconsin-Madison

Herbicide-resistant weeds represent a major threat to sustainability and profitability of row crop production systems in the U.S. Midwest and beyond. Werle will discuss ongoing research efforts in Wisconsin to provide growers and decision influencers with research-based information to be more effective and sustainable integrated weed management systems.

April 23, 2021

Increasing Pasture Productivity and Quality to Support Grazing Livestock

JOHN A. GURETZKY
Associate Professor and Grassland Systems Ecologist, Department of Agronomy and Horticulture, University of Nebraska–Lincoln

This seminar will describe the structure and function of cool-season grass pastures in the Midwest including those dominated by perennials and seeded with annuals. Strategies and knowledge gaps to enhancing pasture productivity and quality through cultivar introductions, interseeding, and planting of simple to complex mixtures will be emphasized.

April 30, 2021

Expanding the Breeding Toolbox to Develop Soybean Cultivars

ASHEESH SINGH
Professor, Agronomy, Bayer Chair in Soybean Breeding, Associate Chair for Discovery and Engagement, Director of Graduate Education (Plant Breeding), R.F. Baker Center for Plant Breeding, Plant Sciences Institute, Iowa State University, Ames

The soybean breeding program at Iowa State University, through an interdisciplinary effort, is developing strategies and building tools to improve the breeding pipeline. This presentation will explore few emerging technologies and data analytics developed or utilized in our program to study plant traits, and describe their application in phenotyping and cultivar development.