Profile Image

Lori A Hoagland

Horticulture and Landscape Architecture 

  • Associate Professor of Horticulture
Horticulture Room 309

 General Information

Area of Expertise: Agroecology and Soil Microbiology


  • PhD, Soil Microbiology and Biochemistry, Washington State University
  • MS, Agroecology, University of Nebraska-Lincoln
  • BS, Environmental Science, University of Nebraska-Lincoln
Currently teaching:
  • Introduction to Urban Agriculture (SFS31200; taught every fall)
  • The Plant Microbiome (HORT52500; taught in fall, even years)
  • Tropical Ecosystems and Sustainable Crop Production in Colombia (Study abroad Maymester course coming soon)

Research program: 

Diversifying agricultural production systems with high-value specialty crops (ie. fruits, vegetables, herbs and specialty grains), and integrating crop production into urban centers can provide new sources of income, improve human health and well-being and bring broad environmental benefits. However, growers face many challenges which prevent them from realizing these benefits such as degraded and contaminated soils, timing nutrient availability with critical periods of plant uptake, plant and human pathogens that are constantly evolving and becoming more virulent, and a rapidly changing climate. Identifying practical approaches to restore degraded soils and promote the activity of beneficial microorganisms that live within them can help address these challenges. Soil microbes regulate many critical agroecosystem services such as carbon sequestration, nutrient and heavy metal cycling, pollutant detoxification and biological control of pathogens. Some microbes can also form intimate associations with plants helping them acquire nutrients, withstand biotic and abiotic stress and alter the nutritional profile and concentration of metals in produce. New molecular tools have greatly increased awareness of the diversity of soil and plant microbiomes, though understanding of how to manage these organisms to promote critical agroecosystem services is in its infancy. Members of our research group are addressing these knowledge gaps by determining how soil and plant-associated microbial communities evolve and carry out specific functions in response to alternative management practices such as amending soils with local waste resources and growing different cover crops. We are also investigating genetic mechanisms regulating beneficial plant-microbial interactions with the long-term goal of integrating selection for these relationships into crop breeding programs. Many of our studies are conducted on-farm using a participatory research approach to ensure that the new approaches we develop will be practical and to help aid in the adoption of improved practices. Additional insights about our research program can be found on the Hoagland Lab Website: www.purdue.edu/hla/sites/hoaglandlab.

    Horticulture & Landscape Architecture, 625 Agriculture Mall Drive, West Lafayette, IN 47907-2010 USA, (765) 494-1300

    © Purdue University | An equal access/equal opportunity university | Integrity Statement | Copyright Complaints | Maintained by Agricultural Communication

    Trouble with this page? Disability-related accessibility issue? Please contact us at agweb@purdue.edu so we can help.

    Sign In