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Lori A Hoagland

Horticulture and Landscape Architecture 

  • Assistant Professor of Horticulture
Horticulture Room 314

Area of Expertise: Specialty Crop Production Systems


The goal of our program is to support the growth and sustainability of the specialty crop industry in Indiana and the Midwestern region by developing management strategies that lower input costs, improve plant health and productivity, and reduce negative impacts of production systems on the environment. Our lab is actively working to understand the role of soil microbial ecology in agroecosystem processes; develop efficient strategies for the use of locally available and renewable resources; and, identify alternative crops and crop cultivars adapted to low-input and organic production systems. We use a combination of traditional and molecular techniques in the lab, collaborate with scientists and extension educators from multiple disciplines, and conduct research on-farm using a participatory approach. We work with a variety of high value specialty crops and are currently conducting research in tomato, carrot, and hops production systems. Current research topics include:

  • Nutrient availability from biological amendments and cover crops
  • Biological approaches to soil-borne disease and weed suppression
  • Functional interactions between soil microbes and crop cultivars
  • Nutrient uptake and use efficiency


  • HORT 20100 – Plant Propagation
  • HORT 49000 - Urban Agriculture
  • HORT 59000 - Rhizosphere Ecology


  • Ph.D., Soil Science, Washington State University
  • M.S., Natural Resources, University of Nebraska-Lincoln
  • B.S., Natural Resources, University of Nebraska-Lincoln

Professional experience:

  • Assistant Professor, Purdue University, 2010-present
  • Post Doctoral Research Associate, Washington State University, 2007-2009
  • Graduate Research and Teaching Assistant, Washington State University, 2003-2007
  • Graduate Research and Teaching Assistant, University of Nebraska-Lincoln, 2000-2002
  • Product Development and Information Coordinator, NC+ Organics, 1997-2000

Awards & Honors

(2011) International Travel Grant Award. Agriculture Research Program, Purdue University.

(2011) Acorn Seed of Excellence Award. Purdue University.

(2011) Millionaire’s Club Award. Purdue University.

Selected Publications

Hallett, S. G., Hoagland, L. A., & Toner, E. (in press). Urban agriculture: environmental, economic and social perspectives. Horticulture Reviews.

Shoaf, N., Egel, D. S., & Hoagland, L. A. (2016). Suppression of Phytophthora blight in sweet pepper depends on biochar amendment and soil type. Hortscience, 51(5), 518-524.

Reeve, J., Hoagland, L. A., Villalba, J., Carr, P., Attucha, A., Cambardella, C., . . . Davis (2016). Organic farming, soil health, and food quality: Considering possible linkages. Advances in Agronomy, 137, 1-49.

Rudisill, M., Turco, R. F., & Hoagland, L. A. (2016). Rhizosphere effects and fertility management influence nitrification and ammonia oxidizers in intensively managed vegetable production systems. Applied Soil Ecology, 99, 70-77.

Hoagland, L. A. (2015). Breeding for beneficial plant-microbial relationships: how do we get there? Eucarpia Workshop On Implementing Plant-Microbe interaction in Plant Breeding,, 23-24.

Hoagland, L. A., Navazio, J., Zystro, F., Kaiser, J. L., Gomez-Vargas, J., & Gibson, K. D. (2015). Identification of key traits and adapted germplasm for an organic participatory tomato breeding program for the Midwest U.S. Hortscience, 50(9), 461-468.

Rudisill, M., Turco, R. F., & Hoagland, L. A. (2015). Sustaining soil quality in intensively managed high tunnel vegetable production systems; a role for green manures and chicken litter. Hortscience, 50(3), 461-468.

Simon, P., Navazio, J., Colley, M., Hoagland, L. A., Robers, P., DuToit, L., . . . McCluskey, C. (2015). The CIOA Project: Location, cropping system, and genetic background influence carrot performance including top height and flavor. Acta Horticulturacea.

DuToit, L., Derie, M., Christianson, C., Hoagland, L., & Simon, P. (2014). First Report of Bacterial Blight of Carrot in Indiana Caused by Xanthomonas hortorum pv. carotae. Plant Disease.

Turner, S., Benedict, C., Darby, H., Hoagland, L., Simonson, P., Sirrine, R., & Murphy, K. (2011). Challenges and opportunities of organic hop production in the U.S. Agronomy Journal, 103, 1645-1654.

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

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