Publications

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Journal Article
A. G. Dolezal, Clair, A. L. St., Zhang, G., Toth, A. L., and O'Neal, M. E., Native habitat mitigates feast-famine conditions faced by honey bees in an agricultural landscape, Proceedings of the National Academy of Sciences, 2019.PDF icon dolezal_st._clair_et_al._2019_pnas.pdf (1007.54 KB)
V. Hernandez-Santana, Zhou, X., Helmers, M. J., Asbjornsen, H., Kolka, R., and Tomer, M., Native prairie filter strips reduce runoff from hillslopes under annual row-crop systems in Iowa, USA, Journal of HydrologyJournal of Hydrology, vol. 477, pp. 94-103, 2013.
M. L. Hladik, Bradbury, S., Schulte, L. A., Helmers, M., Witte, C., Kolpin, D. W., Garrett, J. D., and Harris, M., Neonicotinoid insecticide removal by prairie strips in row-cropped watersheds with historical seed coating use, Agriculture, Ecosystems, and Environment, vol. 241, pp. 160-167, 2017.
M. Perez-Suarez, Castellano, M. J., Kolka, R., Asbjornsen, H., and Helmers, M., Nitrogen and carbon dynamics in prairie vegetation strips across topographical gradients in mixed Central Iowa agroecosystems, Agriculture, Ecosystems, and Environment, vol. 188, p. 11, 2014.
D. Mitchell, Nitrogen sources and sinks in Iowa soils: biogeochemical links between carbon inputs, nitrate leaching, and nitrous oxide emissions, 2012.
M. J. Helmers, Grudens-Shuck, N., and Youngquist, T. D., Novel Use of Conceptual Change Framework Improves Video on Challenging Science Topic, Journal of Extension, vol. 57, no. 1IAW2, 2019.PDF icon novel_use_of_conceptual_change_framework_improves_video_on_challenging_science_topic.pdf (558.77 KB)
X. Zhou, Helmers, M. J., Asbjornsen, H., Kolka, R., Tomer, M. D., and Cruse, R. M., Nutrient removal by prairie filter strips in agricultural landscapes, Journal of Soil and Water Conservation, vol. 69, pp. 54-64, 2014.