David Mortensen

Phone: (603) 862-2152
Office: Agriculture, Nutrition, & Food Systems, Kendall Hall, Durham, NH 03824
David Mortensen, ANFS Dept Chair

Dave Mortensen has spent his career working on sustainable design of cropping systems. Early on, much of this work was pest management centered. More recently, his work has centered on cropping systems design and function and his work has taken on a decidedly landscape approach to framing questions. He is best known for his work on sustainable pest management systems. His work has helped shape national policy with both the USDA and EPA regarding pesticide use and regulations associated with genetically modified crops. Mortensen also serves holds the scientist seat on the USDA's National Organic Standards Board. Mortensen rose to the rank of Distinguished Professor at Penn State before assuming his new role at UNH in 2018.


  • Ph.D., Crop Science and Soil Physics, North Carolina State University
  • M.S., Physiological Ecology, Duke University
  • B.A., Botany, Drew University

Courses Taught

  • ANFS 997: ANFS Seminar
  • SAFS 679: Food Prod Field Experience I

Selected Publications

Baraibar, B., Mortensen, D. A., Hunter, M. C., Barbercheck, M. E., Kaye, J. P., Finney, D. M., . . . White, C. M. (2018). Growing degree days and cover crop type explain weed biomass in winter cover crops. Agronomy for Sustainable Development, 38(6). doi:10.1007/s13593-018-0543-1

Atwood, L. W., Mortensen, D. A., Koide, R. T., & Smith, R. G. (2018). Evidence for multi-trophic effects of pesticide seed treatments on non-targeted soil fauna. Soil Biology and Biochemistry, 125, 144-155. doi:10.1016/j.soilbio.2018.07.007

Hunter, M. C., Smith, R. G., Schipanski, M. E., Atwood, L. W., & Mortensen, D. A. (2017). Agriculture in 2050: Recalibrating Targets for Sustainable Intensification. BioScience, 67(4), 386-391. doi:10.1093/biosci/bix010

Harker, K. N., Mallory-Smith, C., Maxwell, B. D., Mortensen, D. A., & Smith, R. G. (2017). Another view. Weed Science, 65(2), 203-205. doi:10.1017/wsc.2016.30

Schipanski, M. E., Barbercheck, M. E., Murrell, E. G., Harper, J., Finney, D. M., Kaye, J. P., . . . Smith, R. G. (2017). Balancing multiple objectives in organic feed and forage cropping systems. Agriculture, Ecosystems & Environment, 239, 219-227. doi:10.1016/j.agee.2017.01.019

Mortensen, D. A., Egan, J. F., Maxwell, B. D., Ryan, M. R., & Smith, R. G. (2012). Navigating a Critical Juncture for Sustainable Weed Management. BioScience, 62(1), 75-84. doi:10.1525/bio.2012.62.1.12

Billings, W. D., Peterson, K. M., Luken, J. O., & Mortensen, D. A. (1984). Interaction of increasing atmospheric carbon dioxide and soil nitrogen on the carbon balance of tundra microcosms. Oecologia, 65(1), 26-29. doi:10.1007/bf00384458

Billings, W. D., Luken, J. O., Mortensen, D. A., & Peterson, K. M. (1983). Increasing atmospheric carbon dioxide: possible effects on arctic tundra. Oecologia, 58(3), 286-289. doi:10.1007/bf00385225

Billings, W. D., Luken, J. O., Mortensen, D. A., & Peterson, K. M. (1982). Arctic tundra: A source or sink for atmospheric carbon dioxide in a changing environment?. Oecologia, 53(1), 7-11. doi:10.1007/bf00377129

Sionit, N., Mortensen, D. A., Strain, B. R., & Hellmers, H. (1981). Growth Response of Wheat to CO
Enrichment and Different Levels of Mineral Nutrition
1. Agronomy Journal, 73(6), 1023-1027. doi:10.2134/agronj1981.00021962007300060027x

Most Cited Publications