Publications

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Conference Proceedings
D. R. Lockett, Zhou, X., and Helmers, M. J., Impacts of Incorporating Prairie Vegetation within Row Crop Production on Soil Hydraulic Properties, 2011 Louisville, Kentucky, August 7-10, 2011. American Society of Agricultural and Biological Engineers, p. 1, 2011.
E. Heaton, Moore, L. Schulte, Helmers, M., Liebman, M., and Milster, F., Producing food, feed and energy: How can agriculture do it all?, 25th Annual Integrated Crop Management Conference. Iowa State University, Ames, Iowa, 2013.PDF icon producing_food_feed_and_energy_how_can_agriculture_do_it_all_.pdf (2.95 MB)
E. Heaton, Moore, L. Schulte, Helmers, M., Liebman, M., and Milster, F., Producing food, feed and energy: How can agriculture do it all?, 25th Annual Integrated Crop Management Conference. Iowa State University, Ames, Iowa, 2013.PDF icon producing_food_feed_and_energy_how_can_agriculture_do_it_all_.pdf (2.95 MB)
Journal Article
A. M. Roberts, Helmers, M. J., and Fillery, I. R. P., The adoptability of perennial-based farming systems for hydrologic and salinity control in dryland farming systems in Australia and the United States of America, Crop and Pasture Science, vol. 60, pp. 83-99, 2009.
J. Doudna, Helmers, M., and O'Neal, M., Can conservation complement agriculture?, 2011.
R. Hessel, Classical and conservation biological control of pest insects within prairie and crop systems, 2013.
D. C. Mitchell, Zhou, X., Parkin, T. B., Helmers, M. J., and Castellano, M. J., Comparing Nitrate Sink Strength in Perennial Filter Strips at Toeslopes of Cropland Watersheds, Journal of Environmental Quality, 2014.PDF icon 2014 Mitchell et al. JEQ.pdf (878.38 KB)
J. Iqbal, Parkin, T. B., Helmers, M. J., Zhou, X., and Castellano, M. J., Denitrification and Nitrous Oxide Emissions in Annual Croplands, Perennial Grass Buffers, and Restored Perennial Grasslands, Soil Science Society of America Journal, vol. 79, 2015.PDF icon 2014 Iqbal et al. SSSAJ.pdf (799.51 KB)
S. M. Hirsh, Mabry, C. M., Schulte, L. A., and Liebman, M., Diversifying agricultural catchments by incorporating tallgrass prairie buffer strips, Ecological Restoration, vol. 31, pp. 201-211, 2013.
S. M. Hirsh, Diversifying monoculture crops by incorporating prairie buffer strips, 2012.
T. E. Smith, Kolka, R. K., Zhou, X., Helmers, M. J., Cruse, R. M., and Tomer, M. D., Effects of native perennial vegetation buffer strips on dissolved organic carbon in surface runoff from an agricultural landscape, Biogeochemistry, vol. 120, pp. 121-132, 2014.
J. C. Tyndall, Schulte, L. A., Liebman, M., and Helmers, M., Field-Level Financial Assessment of Contour Prairie Strips for Enhancement of Environmental Quality, Environmental Management, vol. 52, pp. 736-747, 2013.
G. Arbuckle J Jr, Helmers, M. J., Liebman, M. Z., and Schulte, L. A., From vulnerability to resiliency: Iowa agriculture in the age of biorenewables, 2008.
R. Cox, O'neal, M., Hessel, R., Schulte, L. A., and Helmers, M., The impact of prairie strips on aphidophagous predator abundance and soybean aphid predation in agricultural catchments, Environmental Entomology, vol. 43, pp. 1185-1197, 2014.
R. Cox, O'neal, M., Hessel, R., Schulte, L. A., and Helmers, M., The impact of prairie strips on aphidophagous predator abundance and soybean aphid predation in agricultural catchments, Environmental Entomology, vol. 43, pp. 1185-1197, 2014.
M. Liebman, Helmers, M. J., and Schulte, L. A., Integrating conservation with biofuel feedstock production, Managing agricultural landscapes for environmental quality II: achieving more effective conservation. Soil and Water Conservation Society of America, Ames, IA, pp. 131-142, 2011.
E. A. Heaton, Schulte, L. A., Berti, M., Langeveld, H., Zegada-Lizarazu, W., Parrish, D., and Monti, A., Managing a 2G crop portfolio through sustainable intensification: examples from the US and EU, Biofuels, Bioproducts & Biorefining, vol. 7, 2013.
M. Perez-Bidegain, Helmers, M. J., and Cruse, R., Modeling phosphorus transport in an agricultural watershed using the WEPP model, Journal of Environmental Quality, vol. 39, pp. 2121-2129, 2010.
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.
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. 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. 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.
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.
B. Chen, Krajewski, W. F., Zhou, X., and Helmers, M. J., Organized variability of surface runoff responses across neighboring hillslopes in Iowa, Journal of Hydrology, vol. 523, pp. 1-13, 2015.
X. Zhou, Helmers, M. J., Asbjornsen, H., Kolka, R., and Tomer, M. D., Perennial filter strips reduce nitrate levels in soil and shallow groundwater after grassland-to-cropland conversion, Journal of environmental quality, vol. 39, pp. 2006-2015, 2010.
J. W. Doudna, O'Neal, M. E., Tyndall, J. C., and Helmers, M. J., Perspectives of extension agents and farmers toward multifunctional agriculture in the United States Corn Belt, Journal of Extension, vol. 53, no. 6, 2015.
L. A. Schulte, MacDonald, A. L., Niemi, J. B., and Helmers, M. J., Prairie strips as a mechanism to promote land sharing by birds in industrial agricultural landscapes, Agriculture, Ecosystems, and Environment, vol. http://dx.doi.org/10.1016/j.agee.2016.01.007, 2016.
N. Grudens-Schuck, Helmers, M. J., Youngquist, T. D., and Johnson, M. S., Prairie strips for sediment and nutrient control and biodiversity, Journal of Extension, vol. 55, no. 1, 2017.
L. A. Schulte, Niemi, J., Helmers, M. J., Liebman, M., Arbuckle, J. G., James, D. E., Kolka, R. K., O'Neal, M. E., Tomer, M. D., Tyndall, J. C., Asbjornsen, H., Drobney, P., Neal, J., Van Ryswyk, G., and Witte, C., Prairie strips improve biodiversity and the delivery of multiple ecosystem services from corn–soybean croplands, PNAS, 2017.
J. Gutierrez-Lopez, Asbjornsen, H., Helmers, M., and Isenhart, T., Regulation of soil moisture dynamics in agricultural fields using strips of native prairie vegetation, Geoderma, vol. 226, pp. 238-249, 2014.
H. Asbjornsen, Shepherd, G., Helmers, M., and Mora, G., Seasonal patterns in depth of water uptake under contrasting annual and perennial systems in the Corn Belt Region of the Midwestern US, Plant and Soil, vol. 308, pp. 69-92, 2008.
M. J. Helmers, Zhou, X., Asbjornsen, H., Kolka, R., Tomer, M. D., and Cruse, R. M., Sediment removal by prairie filter strips in row-cropped ephemeral watersheds, Journal of environmental quality, vol. 41, pp. 1531-1539, 2012.
F. Kordbacheh, Liebman, M., and Harris, M., Strips of prairie vegetation placed within row crops can sustain native bee communities, PLOS One, 2020.
E. Brandes, McNunn, G. Sean, Schulte, L. A., Bonner, I. J., Muth, D. J., Babcock, B. A., Sharma, B., and Heaton, E. A., Subfield profitability analysis reveals an economic case for cropland diversification, Environmental Research Letters, vol. 11, no. 1, p. 014009, 2016.
H. Asbjornsen, Hernandez-Santana, V., Liebman, M., Bayala, J., Chen, J., Helmers, M., Ong, C. K., and Schulte, L. A., Targeting perennial vegetation in agricultural landscapes for enhancing ecosystem services, Renewable Agriculture and Food Systems, vol. 29, pp. 101-125, 2014.
H. Asbjornsen, Hernandez-Santana, V., Liebman, M., Bayala, J., Chen, J., Helmers, M., Ong, C. K., and Schulte, L. A., Targeting perennial vegetation in agricultural landscapes for enhancing ecosystem services, Renewable Agriculture and Food Systems, vol. 29, pp. 101-125, 2014.
M. Liebman, Helmers, M. J., Schulte, L. A., and Chase, C. A., Using biodiversity to link agricultural productivity with environmental quality: Results from three field experiments in Iowa, Renewable Agriculture and Food Systems, vol. 28, pp. 115-128, 2013.
H. Asbjornsen, Mora, G., and Helmers, M. J., Variation in water uptake dynamics among contrasting agricultural and native plant communities in the Midwestern US, Agriculture, ecosystems & environment, vol. 121, pp. 343-356, 2007.
M. J. Helmers, Zhou, X., Asbjornsen, H., and Kolka, R., Water quality benefits of perennial filter strips in row-cropped watersheds, 2011.
L. A. Garibaldi, Oddi, F. J., Miguez, F. E., Bartomeus, I., Orr, M. C., Jobbágy, E. C., Kremen, C., Moore, L. A. Schulte, Hughes, A. C., Bagnato, C., Abramson, G., Bridgewater, P., Carella, D. Gomez, Díaz, S., Dicks, L. V., Ellis, E. C., Goldenberg, M., Huaylla, C. A., Kuperman, M., Locke, H., Mehrabi, Z., Santibañez, F., and Zhu, C. - D., Working landscapes need at least 20% native habitat, Conservation Letters, 2020.
L. A. Garibaldi, Oddi, F. J., Miguez, F. E., Bartomeus, I., Orr, M. C., Jobbágy, E. C., Kremen, C., Moore, L. A. Schulte, Hughes, A. C., Bagnato, C., Abramson, G., Bridgewater, P., Carella, D. Gomez, Díaz, S., Dicks, L. V., Ellis, E. C., Goldenberg, M., Huaylla, C. A., Kuperman, M., Locke, H., Mehrabi, Z., Santibañez, F., and Zhu, C. - D., Working landscapes need at least 20% native habitat, Conservation Letters, 2020.