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.
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. Tyndall and Roesch-McNally, G. Elan, Agricultural water quality BMPs: A standardized approach to financial analysis, Journal of Extension, vol. 52, no. 3, p. 1, 2014.
L. A. Schulte, Asbjornsen, H., Liebman, M., and Crow, T. R., Agroecosystem restoration through strategic integration of perennials, Journal of Soil and Water Conservation, vol. 61, p. 164A-169A, 2006.
M. Remigio and Salome, V., Assessing the ecohydrological impact of incorporating perennial vegetation into an agricultural watershed in Central Iowa, USA, 2015.
L. A. Schulte, Ontl, T. A., and Larsen, G. Drake, Biofuels and Biodiversity, Wildlife Habitat Restoration, 2013.
A. L. MacDonald, Blurring the lines between production and conservation lands: Bird use of prairie strips in row-cropped landscapes, 2012.
J. Doudna, Helmers, M., and O'Neal, M., Can conservation complement agriculture?, 2011.
R. M. Maher, Asbjornsen, H., Kolka, R. K., Cambardella, C. A., and Raich, J. W., Changes in soil respiration across a chronosequence of tallgrass prairie reconstructions, Agriculture, ecosystems & environment, vol. 139, pp. 749-753, 2010.
R. Hessel, Classical and conservation biological control of pest insects within prairie and crop systems, 2013.
G. William Shepherd, A comparative agroecosystems analysis of soil water and root dynamics under six different vegetative cover types, 2006.
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.
N. P. Schmidt, O'Neal, M. E., and Moore, L. A. Schulte, Effects of grassland habitat and plant nutrients on soybean aphid and natural enemy populations, Environmental Entomology, vol. 40, pp. 260-272, 2011.
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.
M. Liebman and Schulte, L. A., Enhancing agroecosystem performance and resilience through increased diversification of landscapes and cropping systems., Elementa, 2015.
J. G. Arbuckle Jr., Farmer attitudes toward proactive targeting of agricultural conservation programs, Society & Natural Resources, vol. 26, pp. 625-641, 2013.
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. L. Larsen, Knoot, T. G., and Tyndall, J., From Science to Practice: Findings from the 2011 STRIPs Project Stakeholder Meeting (June 21, 2011), 2011.
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.
S. Secchi, Tyndall, J., Schulte, L. A., and Asbjornsen, H., High crop prices and conservation: Raising the stakes, Journal of Soil and Water Conservation, vol. 63, p. 68A-73A, 2008.PDF icon Secchi et al. 2008 JSWC.pdf (968.32 KB)
G. L. D. Larsen, Schulte, L. A., and Tyndall, J. C., How should Iowa's agricultural landscape look?, Rootstalk, vol. 1, pp. 41-46, 2015.
M. E. O'Neal and Moore, L. A. Schulte, The impact of biodiversity services in row crop production in annual verses perennial landscapes, 2011.
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.
N. Jordan, Schulte, L. A., Williams, C., Pitt, D., Slotterback, C. Shively, Jackson, R., Landis, D., Dale, B., Becker, D., and Rickenbach, M., Landlabs: An Integrated Approach to Creating Agricultural Enterprises That Meet the Triple Bottom Line, Journal of Higher Education Outreach and Engagement, vol. 17, pp. 175-200, 2013.
M. E. Jarchow and Liebman, M., Maintaining multifunctionality as landscapes provide ecosystem services, Frontiers in Ecology and the Environment, vol. 9, pp. 262-262, 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.
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.
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.
L. SchulteMoore, Prairie strips: bringing biodiversity, improved water quality, and soil protection to agriculture, Missouri Prairie Journal, vol. 35, 2014.PDF icon Schulte 2014 MoPrairieJournal -- Prairie Strips.pdf (1.04 MB)
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.
A. Clinton, Prairie strips research indicate curbed nutrient loss, Advance, no. February 26, 2015, 2015.
K. A. Gill, Cox, R., and O'Neal, M. E., Quality over quantity: buffer strips can be improved with select native plant species, Environmental Entomology, vol. 43, 2014.
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.
D. Rae Lockett, Soil Hydraulic Property Impacts of Incorporating Prairie Vegetation within a Row Crop Production Area, 2012.

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