Department Head

Department Head
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Thomas Chastain
Department Head; Professor
541-737-5730
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Welcome to the Department of Crop and Soil Science

The Department of Crop and Soil Science (CSS) is an academic enterprise with nearly 150 faculty located at the Corvallis campus, branch experiment stations and county extension offices across Oregon. Faculty and...

Maria Dragila
Associate Department Head & Professor, Soil Physics
541-737-5739
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Physical mechanisms that control water motion in soil, porous media, and fractured porous media.

BIOWATER RESEARCH: Projections for food demand over the next few decades will require significant increases in agricultural productivity for essentially the same soil footprint...

Faculty

Faculty
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Nicole Anderson
Field Crops Extension Agent
503-553-9922
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The primary focus of my program is to conduct applied research and Extension outreach in grass and legume seed crops in Oregon.

Sam Angima Sam Angima
Assistant Dean for Outreach and Engagement
541-737-3742
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Extension Small Farms Program

Judit Barroso
Assistant Professor
(541) 278-4394
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My responsibilities include to develop and lead research and outreach programs that integrate chemical, cultural, and mechanical weed control measures using new or novel approaches for weed management in the wheat-based production systems of eastern Oregon. They will focus on weed management...

Caio Augusto De Castro Grossi Brunharo
Assistant Professor
541-737-5754
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His research integrates physiological, biochemical, molecular, and analytical approaches to understand the evolutionary basis of herbicide resistance, and how integrated pest management strategies may be used to prevent...

Brian A. Charlton
Director & Klamath Basin Potato Faculty Scholar
541-883-4590
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Potato Variety Development and Other Row Crops

  • Cultural Management
  • Pest and Disease Control
  • Seed Production
  • Irrigation Efficiencies
Sabry Elias
Professor (Sr Res)
+ 1 (541)-737-4799
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Seed Science and Technology

Seed quality evaluation in relation to the physiology of seed germination, vigor, dormancy, storability, post-harvest technologies, and the relationship to field performance. Accepts only self-funded graduate students.

Joel Felix
Associate Professor
541-889-2174
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My research program focuses on development and support of weed management tactics that address grower economic growth while enhancing environmental stewardship for a viable and sustainable agriculture. I believe that understanding weed biology and ecology is a key to effective weed management in...

Melissa Fery
Associate Professor (Practice)
541-730-3538
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Small Farms

Lane County (also serving Benton and Linn Counties)

Shayan Ghajar
Assistant Professor (Practice)
541-737-6131
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I focus on organic, transitioning, and low-input sustainable pasture and forage management for producers in Oregon. My past research has included integrating native grasses and forbs into horse and beef pasture systems as...

Ryan Graebner
Assistant Professor- Practice
541-359-7151
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Extension Cereal Variety Program
Columbia Basin Agricultural Research Center
48037 Tubbs Ranch Rd.
Adams, OR 97810

Lauren Gwin
Associate Professor; Associate Director, Center for Small Farms & Community Food Systems
541-737-1569
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Focus areas: Farm and food system policy, local and regional food supply chains, community food system development.

Dr. Lauren Gwin is an Associate Professor in the Crop & Soil Science Department, Extension Community Food Systems Specialist, and Associate Director of OSU...

Mary Halbleib
Associate Professor of Practice
541-737-2683
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In her work Mary creates professional development opportunities for Extension faculty and staff in the College of Agricultural Sciences that provide evidence-based approaches to instructional design, active teaching strategies, and program evaluation.

Her goal is to empower Extension...

David Hannaway
Professor and Forage Program Director
541-737-5863
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Forage Program Director with research, teaching, extension, and international activities focused on matching forage species to locations based on climate, soils, intended use, and management and alfalfa crop simulation modeling. Undergraduate and graduate teaching and student advising. State,...

Patrick Hayes
Professor
541-737-5878
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We use genetics and plant breeding tools to understand and realize the potential of barley, a most amazing crop and model organism. Our applied efforts are directed at developing varieties and germplasm meeting a range of end uses: malting and brewing; food; and feed. Our basic research is...

Andrew Hulting
Associate Professor, Extension Weed Management Specialist, Hyslop Professor
541-737-5098
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Responsibilities include state-wide weed management support for agronomic crops for farmers, OSU Regional Extension Faculty, and the diverse agricultural industry throughout Oregon. Specific emphasis is on the development of environmentally and economically sustainable integrated weed management...

Valtcho Jeliazkov
Associate Professor
541-737-5877
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  • Long-term effects of agricultural practices on production systems
  • Hemp, oilseeds, essential oil and medicinal plants, plant chemicals
  • Utilization of plant chemicals as alternatives to synthetic plant hormones, growth regulators, and pesticides
  • ...
Gordon Jones
Assistant Professor (Practice)
541-771-7371 x230
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Commercial agriculture Extension in Jackson and Josephine counties

  • Pasture and Forage Production
  • Grazing Managment
  • Cover Crops
  • Soil Fertility
  • Cropping...
Navneet Kaur
Assistant Professor, Extension Entomologist Field Crops
541-737-5884
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My research focus is to develop and facilitate the implementation of integrated pest management strategies for sustainable arthropod pest management in diverse Oregon cropping systems. My research interests include insect biology and ecology, host plant resistance, insect biocontrol, insect...

Markus Kleber
Professor, Soil System Science
541-737-5718
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The processes at the interface between organic matter and mineral surfaces, including mineral surface properties, organic matter properties, bonding mechanisms, adsorption processes, mineral-microbial interactions, and organic matter turnover dynamics.

Projects:...

Jennifer Kling
Professor (Sr Res)
541-737-8277
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  • Plant breeding and genetics curriculum development and distance learning
  • Quantitative genetics
  • Experimental design and statistics
  • Breeding specialty crops for niche markets in Oregon (currently oats, flax, corn and meadowfoam)
Kate Lajtha
Professor, Biogeochemistry
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Nutrient cycling in natural and human-disturbed ecosystems, including the attenuation of increased nitrogen inputs to terrestrial ecosystems by soils and vegetation, detrital controls on soil organic matter formation.

I am not accepting new graduate students at this time.

Larry Lutcher
Associate Professor, Extension Faculty & Staff Chair
541-676-9642
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Dryland Cereal Production

Stephen Machado
Professor, Dryland Cropping System Agronomist
541-278-4416
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Stephen Machado leads the OSU's long-term research activities at CBARC Pendleton, CBARC Moro, and in Heppner in eastern Oregon. He is the Dryland Cropping Systems Agronomist for the semiarid Northcentral and Northeast Oregon. His responsibilities include establishing research priorities,...

Jordan Maley
Instructor
541-384-2271
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Agricultural watershed monitoring & alternative dryland crops

Rory Mc Donnell
Associate Professor
541-737-6146
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My research and Extension program is focused on 1) understanding the ecology of invasive slugs and snails in agriculture, horticulture, urban areas, the natural environment and at the interface of these systems, and 2) developing and implementing novel strategies for the management of these...

Brigid Meints
Research Associate
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  • Breeding multi-use naked barley for organic systems
  • Barley for culinary uses
  • Exploring seed coat color in barley
Amber Moore
Assistant Professor and Soil Fertility Specialist
541-737-2870
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The focus of my position is to conduct applied research and to develop nutrient and lime recommendations that improve nutrient use efficiency by large acreage crops grown in Oregon. The crops of primary focus are on grass grown for seed, cereals, and potatoes, with a secondary focus on minor...

Jennifer Parke
Professor, Senior Research, Soil Biology
541-737-8170
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I am no longer accepting graduate students due to planned retirement in 2021.

  • Phytophthora diseases of woody plants
  • Management of Phytophthora diseases in horticultural nurseries and native plant nurseries
  • Soil...
Julie Pett-Ridge
Associate Professor
541-737-1236
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Geochemical, hydrologic, and biogeochemical processes in the critical zone
Global carbon cycle
Ecosystem nutrient sources and cycling
Radiogenic and metal isotope tracers

Website

Jacob Powell
Assistant Professor (Practice)
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Yan Ping Qian
Assistant Professor, Senior Research
541-737-1135
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My general research activities are chemistry, composition, and quality of post-harvest crops, with a focus on aroma and flavor compounds identification, chemical characterization, and analysis; and soil chemistry.

 

Ruijun Qin
Assistant Professor
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Oilseed and Fiber Crops

Stuart Reitz
Professor and Director
(541) 889-2174
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Responsible for research and extension programming related to cropping systems in Malheur County

IPM

Ecology and management of insect vectors of plant pathogens

Daniela Resende Carrijo Contact person by email

Ron Reuter
Associate Professor
541-322-3109
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Ron's Webpage: http://people.oregonstate.edu/~reuterr/

Silvia Rondon
Oregon Integrated Pest Management Director & Professor-Entomology Specialist
(541) 567-8321
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  • Integrated Pest Management
  • Insects-Plant Interactions
  • Biological Control
  • Insect Ecology-Insect Movement
  • Chemical Control

The goal of my research program is to develop and implement cost-effective reduced-risk Integrated...

Richard Roseberg
Director, Southern Oregon Experiment Station, and Associate Professor, Agronomy
(541) 772-5165
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Research interests include crop water use, irrigation, water and chemical movement through soil, macropore flow, water quality, and alternative crop evaluation and management in a semi-arid climate.

Andrew Ross
Professor
541-737-9149
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Fundamental and applied research of cereal grain components,

Wheat- and barley-based foods,

Fermentation as a vehicle for improving cereal-foods' nutritional profiles.

Advocacy for whole-grain consumption: whole-grains, fiber, human gut microbiome, and human...

Vidyasager Sagar Sathuvalli
Assistant Professor, Potato Breeding
541-567-6337 x 109
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My research focuses on Potato Breeding and Germplasm Improvement using traditional, molecular, and genomic tools. My program will aim at developing new potato cultivars with increased biotic and abiotic stress tolerance, nutrient efficiency and processing quality.

John Spring
Assistant Professor
Contact person by email Applied weed management.
Research conducted by the Integrated Pest Management program at the Central Oregon Agricultural Research and Extension Center is intended to support improved control and management of...
Garry Stephenson
Director, Center for Small Farms & Community Food Systems Coordinator, Small Farms Program
541-737-5833
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Garry is a Professor, Extension Small Farms Specialist and Director of the Center for Small Farms & Community Food Systems, an alternative farming program at Oregon State University that is striving to change the world through small scale organic/sustainable agriculture and local/regional...

Clare Sullivan
Assistant Professor (Practice)
541-967-3871
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Field crops extension and applied research activities in Deschutes County

Dan Sullivan
Professor, Nutrient Management
541-737-5715
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Program Goals

  1. Investigating and improving on-farm management practices for organic nutrient sources such as manure, municipal biosolids, and compost
  2. Providing Extension clientele and students with actionable research-based information to guide soil fertility...
Christy Tanner
Assistant Professor (Practice)
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Field crop production and watershed management in Malheur County

  • Sustainable cropping systems
  • Cover crops
  • Forage production
  • Pesticide education and stewardship...
Abigail Tomasek
Assistant Professor
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Shaun Townsend
Associate Professor, Senior Research
541-737-5099
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The Aroma Hop Breeding Program is tasked with developing new hop cultivars, adapted for Oregon growing conditions, with a focus on essential oil quality. This program interacts closely with Dr. Tom Shellhammer's program in the Food Science & Technology Department to characterize the...

Elizabeth Verhoeven
Assistant Professor (Practice)
971-600-1677
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field crop production in the mid-Willamette Valley; grass seed, oilseeds, mint, hops, small grains, wheat

Darrin Walenta
Associate Professor, Cropping Systems Pest Management
541-963-1062
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Extension Agronomist with field crop responsibilities in Union, Baker, and Wallowa Co.

Guojie Wang
Assistant Professor / Forage Agronomist
541-962-3641
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Specialty:  Forage Agronomy, Cellulosic Bioenergy, Soil and Water Conservation

Collaborative Interests:

  • Diverse forage species/varieties evaluation
  • Crop drought stress physiology
  • Irrigation efficiency
  • Soil health
  • ...
Tracy Wilson
Agricultural Literacy Coordinator
541-460-7682
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Agricultural Literacy

Donald Wysocki
Associate Professor, Extension Soil Scientist
541-278-5403
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Focused on dryland cropping systems, soil, water and nutrient management, soil erosion, soil quality, and rotational crops.

Research projects are concerned with improving management of soils under dryland farming systems in relation to soil and water conservation, crop rotation, nutrient...

Robert Zemetra
Professor
541-737-4278
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Wheat Breeding and Genetics

Instructor

Instructor
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Burl Carpenter
Instructor
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James Cassidy
Senior Instructor Soil Science & Sustainable/Organic Agriculture, Faculty Adviser OSU Organic Growers Club
541-737-6810
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  • Soil education.
  • Organic food production.
  • Composting.
Alyssa Duval
Instructor
541-737-1131
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Jillian Gregg
Instructor
541-829-0456
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Climate Change science and solutions

 

Kimberly Japhet
Senior Instructor I
541-609-0939
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Online Course Development and Delivery, facilitating professors building courses and students taking online offerings.

 

Alicia Leytem
Instructor
541-737-8568
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Leon Liegel
Instructor
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Research/Career Interests

- Taught Ecampus SOIL 511 in Winter 2019/2020 and Summer 2021 terms.

- Online teaching to discuss use and management of soils to meet societal goals of diverse user groups, from individuals/families to Nation...

Adam Lindsley
Senior Instructor
541-737-1632
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  • Statistics and GIS-based soil mapping
  • Photogrammetry and 3D modeling of soils
  • Online teaching pedagogy
  • Science communication
Deanna Lloyd
Instructor
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I teach classes for the Sustainability Double-Degree Program and the Department of Horticulture - both on the Corvallis campus and through Ecampus.  My instructional duties also include coordination of service-learning projects for large undergraduate courses (SOIL 205, SUS 350, and SUS 304...

Megan Mobley
Senior Instructor I
541-737-5751
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I teach large-enrollment non-major courses in Soil Science and Environmental Science for the Sustainability Double-Degree program and the Crop and Soil Science Department at Oregon State University, both on the Corvallis campus and via OSU E-campus.

My research focuses changes in...

Kelly Morales
Instructor
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Students in my classes are often busy juggling home, children, work, and school. I strive for inclusiveness and accommodation. My focus is on helping students find ways to complete their class work, amidst all the turmoil and stressors that unfold daily.

As a Soil Scientist, I've...

Jen Myers
Instructor
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Leon Nguyen
Instructor
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Lorien Reynolds
Instructor
547- 4100 (by appointment only)
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Stefan Seiter
Senior Instructor and Advisor
541-737-6372
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Kimberly Townsend
Instructor
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Directory of Professional Faculty

Professional Faculty

Professional Faculty
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Daniel Curry
Director of Seed Services and Supervisor of Corvallis Farm Unit
541-737-5094
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Bailey Jenks
Cereal Variety Outreach Coor
541-737-5870
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Kristin McAdow
Soil Health Lab Manager
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Rebecca Thistle...
NMPAN Program Manager
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Courtesy Faculty Directory

Courtesy

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Colin Curwen McAdams
Courtesy Appointment
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David D Amore
Courtesy Appointment
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Biswanath Dari
Courtesy Faculty
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  • Sustainable agriculture
  • Crop production
  • Soil health and Nutrient cycling
  • Agricultural resources (fertilizer, irrigation water, post-harvest residue) management
  • Environmental (soil and water quality) protection
  • Promoting...
David Gent
Courtesy Appointment
Courtesy Faculty
541-738-4167
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Integrated pest management; disease epidemiology, ecology, and management

  • Our research centers around better understanding the epidemiology and biology of downy mildew and powdery mildew diseases to develop integrated management systems that reduce crop losses and chemical...
John Havlin
Courtesy Appointment
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Ryan Hayes
Courtesy Appointment
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John Henning
Courtesy Appointment
541-738-4145
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USDA-ARS

Dustin Herb
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Mark G. Johnson
Courtesy Appointment
541-754-4696
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Soil Scientist

US-EPA

Rebecca Lybrand
Assistant Professor
541-737-1036
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Pedology

Jonathan Maynard
Courtesy Appointment
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Jennifer Kucera
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Maria Munoz-Ama...
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David Olszyk
Courtesy Appointment
541-754-4397
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Susanna Pearlstein
Courtesy Appointment
(541) 754-4534
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Claire Phillips
Courtesy Appointment
541-737-3425
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Teaching in environmental science, global change biology, forest and soil science, and sustainability. Research in global change and landuse impacts on forests and soils, natural and anthropogenic greenhouse gas emissions, carbon storage and sequestration.

John Selker
University Distinguished Professor
Faculty
1-541-737-6304
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  • Hydrologic Instrumentation; Vadose Zone Hydrology; Groundwater Hydrology; Stochastic Hydrology; Contaminant Transport

Current Research: 

Directs laboratory experiments in five facilities, including column/chamber experiments, flow of non-Newtonian fluids,...

Anne Taylor
Assistant Professor, Senior Research
Faculty
541-737-4136
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  • Physiological attributes of nitrification in soils
  • Contributions of ammonia-oxidizing archaea and bacteria to soil ammonia-oxidation
  • Drivers of uncoupling of ammonia and nitrite oxidation in...