Julie M. Grossman

Department of Soil Science
North Carolina State University
PO Box 7619
Raleigh, North Carolina 27695-7619

Room: 4235
Office Phone: 919.513.1041
Email: julie_grossman@ncsu.edu

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Specialty: Soil Fertility Management in Organic Cropping Systems

My work broadly explores the ways in which we can better manage plant-soil-microbe relationships in order to enhance soil fertility with the ultimate goal of developing sustainable food production systems. The overarching goal of my research program is to enhance the efficient management of soil nutrients in low-input and organic farming systems. I do this by conducting basic and applied research that will increase our understanding of how agricultural management affects the cycling of nutrients via soil microbial processes. Organic farmers and those with limited resources are often put in a tricky spot of growing food crops without purchased inputs such as synthetic fertilizers. This increases their reliance on less understood soil microbial processes to provide their crop plants with critical nutrients needed for growth and development. Since nitrogen is an essential nutrient for crop plants, we put particular emphasis on understanding the ecology of the legume-rhizobia symbiosis. I am excited by the prospect of developing food production systems that are ecologically based and able to meet the food needs of society. To increase our understanding of how soil microbes indirectly and directly affect nutrient cycling and soil fertility in low input systems, I use numerous applied microbiological and field techniques that measure both the specific functioning of microbes that mediate nutrient cycling in soils, and general characteristics of soil health.



Books or Book Chapters

  • Grossman, J.M. 2008. Service Learning in the Applied Sciences. In: Extending our Reach: Voices of Service Learning at Cornell. Editor: Paula Horrigan, p 40-43.
  • Referred Journals

  • Grossman, J.M.; Patel, M.; Drinkwater, L. 2010. The Sustainable Agriculture Scholars Program: Enhancing students summer agro-ecological laboratory employment through structured experiential learning and reflection. Journal of Natural Resources and Life Sciences Education, 39:31-39.
  • Grossman, J.M. and Cooper, T.C. 2004. Linking Environmental Science students to external community partners: A critical assessment of a service-learning course. Journal of College Science Teaching, 33(5).


    Books or Book Chapters

  • Tsai, S.M., Neill, B., Cannavan, F.S., Saito, D., Falcão, N.P.S., Kern, D. Grossman, J., Thies, J. 2009. The Microbial World of Terra Preta. In Amazonian Dark Earth: Wim Sombroek's Vision, edited by Woods, W.I.,Teixeira, W.G., Lehmann, J., Steiner, C., WinklerPrins, A., Rebellato, L. Springer, Berlin.
  • Thies J.E. and Grossman J.M., 2006. Chapter 5: The Soil Habitat and Soil Ecology, In: Biological Strategies for Sustainable Soil Systems; Publisher: Marcel Dekker/CRC Press.
  • Referred Journals

  • Grossman, J.M.; Schipanski, M.E.; Sooksanguan, T.; Seehaver, S.; Drinkwater, L.E., 2011. Diversity of rhizobia nodulating soybean [Glycine max (Vinton)] varies under organic and conventional management, Applied Soil Ecology, 50, p. 14-20.
  • Parr, M.; Grossman, J.M.; Reberg-Horton, S.C.; Brinton, C. and Crozier, C. 2011. Nitrogen fixation of legume cover crops in no-till organic corn production, Agronomy Journal 103(6), 1578-1590
  • Reberg-Horton, S.C., J.M. Grossman, T.S. Kornecki, A.D. Meijer, A.J. Price, G.T. Place and T.M. Webster. Utilizing cover crop mulches to reduce tillage in organic systems in the Southeast. Renewable Agriculture and Food Systems. (Accepted).
  • Grossman, J.M.; O'Neill, B.E.; Tsai, S.M.; Thies, J.E., 2010 Amazonian anthrosols support similar microbial communities that differ distinctly from those extant in adjacent, unmodified soils of the same mineralogy. Microbial Ecology, 60(1):192-205.
  • Liang, B., Lehmann, J., Sohi, S.P., Thies, J.E., O'Neill, B., Trujillo, L., Gaunt, J., Solomon, D. Grossman, J. Neves, E.G., Luizão, F.J. 2009. Black carbon affects the cycling of non-black carbon without priming of aged black carbon in soil. Organic Geochemistry. 41:206–213.
  • O'Neill, B.; Grossman, J.M.; Tsai, M.T; Gomes, J.E.; Lehmann, J.; Peterson, J.; Neves, E.; Thies, J.E. 2009. Bacterial Community Composition in Brazilian Anthrosols and Adjacent Soils Characterized Using Culturing and Molecular Identification. Microbial Ecology 58:23–35.
  • Grossman, J.M. Farmers understanding of soil processes. 2008. Low External Input and Sustainable Agriculture (LEISA). Issue title: Ecological Processes at Work. 22(4): 24.
  • Vadas, T.M.; Fahey, T.J.; Sherman R.E.; Demers, J.D.; Grossman, J.M.; Maul, J.E.; Melvin, A.M.; O'Neill, B.; Raciti, S.M.; Rochon, E.T.; Sugar, D.J.; Tonitto, C.; Turner, C.B.; Walsh, M.J.; Zue, K. 2008. Approaches for analyzing local carbon mitigation strategies: Tompkins County, New York, USA, International Journal of Greenhouse Gas Control, 1(3): 281-386.
  • B. Liang, J. Lehmann, D. Solomon, J. Kingyangi, J.M. Grossman, B. O'Neill, J.O. Skjemstad, J. Thies, F.J. Luizao, J. Petersen, E.G. Neves, 2006. Black Carbon Increases Cation Exchange Capacity in Soils. Soil Science Society of America Journal 70(5): 1719-1730.
  • Grossman J.M., Sheaffer C., Wyse D., Bucciarelli B., Vance C., Graham P.H., 2006. An assessment of nodulation and nitrogen fixation in inoculated Inga oerstediana, a nitrogen-fixing tree shading organic coffee in Chiapas, Mexico. Soil Biology and Biochemistry, 38(4): 769-784.
  • Grossman J.M., Sheaffer C., Wyse D., Graham P.H., 2005. Identification and characterization of slow growing root nodule bacteria from Inga oerstediana shading organic coffee agroecosystems in Chiapas, Mexico. Applied Soil Ecology 29(3):236-251.
  • Tlusty, B., Grossman, J.M. and Graham, P.H., 2004. Selection of rhizobia for prairie legumes used in restoration and reconstruction programs in Minnesota. Canadian Journal of Microbiology 50(11): 977-983.
  • Grossman, J.M., 2003. The hidden world of soil processes: Exploring local soil knowledge of organic coffee producers in Chiapas, Mexico. Geoderma 111(3/4): 267-287.