Peer-reviewed Articles

Youngerman, CZ, A DiTommaso, JE Losey, and MR Ryan. 2019. Cover crop and weed seed preference of four common weeds seed predators. Renewable Agriculture and Food Systems. (Accepted.)

Youngerman, CZ, A DiTommaso, WS Curran, SB Mirsky, and MR Ryan. 2018. Corn Density effect on interseeded cover crops, weeds, and grain yield. Agronomy Journal 110:2478-2487.

Nunes, MR, HM van Es, R Schindelbeck, AJ Ristow, MRyan. 2018. No-till and cropping system diversification improve soil health and crop yield. Geoderma 328: 30-43.

Mohler, CL, BA Caldwell, CA Marschner, S Cordeau, Q Maqsood, MR Ryan, A DiTommaso. 2018. Weed seed bank dynamics in a long-term organic vegetable cropping systems experiment. Weed Science 66: 611-626.

Ryan, MR, TE Crews, SW Culman, LR DeHaan, RC Hayes, JM Jungers, and MG Bakker. 2018. Managing for multifunctionality in perennial grain crops. BioScience 68:294–304.

Crowley, K, HM van Es, M Gomez, and MR Ryan. 2018. Trade-offs in cereal rye management strategies prior to organically managed soybean. Agronomy Journal 110:1–13.

Hoffman, E, SB Mirsky, M Cavigelli, G Camargo, MR Ryan, and TL Richard. 2018. Energy use and greenhouse gas emissions in organic and conventional grain crop production: accounting for nutrient inflows. Agricultural Systems 162: 89-96.

Nunes MR, H van Es, R Schindelbeck, A Ristow, and MR Ryan. 2018. Soil health and maize yield analysis detects long-term tillage and cropping effects. Geoderma 328:30–43.

Bybee-Finley, KA and MR Ryan. 2018. Advancing intercropping research and practices in industrialized agricultural landscapes. Agriculture. 8:80.

Curran, WS, RJ Hoover, SB Mirsky, GW Roth, MR Ryan, VJ Ackroyd, JM Wallace, MA Dempsey, and CJ Pelzer. 2018. Evaluation of cover crops drill interseeded into corn (Zea mays) across the mid-Atlantic region. Agronomy Journal 110:435-443.

Wallace, JM, Keene CL, WS Curran, SB Mirsky, MR Ryan, and MJ VanGessel. 2018. Integrated weed management strategies in cover crop-based, organic rotational no-till corn and soybean in the mid-Atlantic region. Weed Science 66:94–108.

Bybee-Finley, KA, SB Mirsky, and MR Ryan. 2017. Crop biomass not species richness drives weed suppression in warm-season annual grass-legume intercrops in the Northeast. Weed Science 65:669-680.

Jernigan, AB, BA Caldwell, S Cordeau, A DiTommaso, LE Drinkwater, CL Mohler, and MR Ryan. 2017. Weed abundance and community composition following a long-term organic vegetable cropping systems experiment. Weed Science 65:639–649.

Liebert, JA, and MR Ryan. 2017. High planting rates improve weed suppression, yield, and profitability in organic no-till planted soybean. Weed Technology 31:536-549.

Liebert, JA, A DiTommaso, and MR Ryan. 2017. Rolled mixtures of barley and cereal rye for weed suppression in cover crop-based organic no-till planted soybean. Weed Science 65:426-439.

Cordeau, S, RG Smith, ER Gallandt, B Brown, P Salon, A DiTommaso, and MR Ryan. 2017. Timing of tillage as a driver of weed communities. Weed Science 65:504-514.

Cordeau, S, RG Smith, ER Gallandt, B Brown, P Salon, A DiTommaso, and MR Ryan. 2017. How do weeds differ in their response to the timing of tillage? A study of 61 species across the Northeastern United States. Annals of Applied Biology 171:340-352.

Cordeau, S, RG Smith, ER Gallandt, B Brown, P Salon, A DiTommaso, and MR Ryan. 2017. Disentangling the effects of tillage timing and weather on weed community assembly. Agriculture 7:66.

Cordeau S, MR Ryan, DA Bohan, X Reboud, and B Chauvel. 2017. Which traits allow weed species to persist in grass margin strips? Weed Science 65:381-394.

Keene CL, WS Curran, JM Wallace, MR Ryan, SB Mirsky, MJ VanGessel, and ME Barbercheck. 2017. Cover crop termination timing is critical in organic rotational no-till systems. Agronomy Journal 109:272-282.

Melkonian, J, HJ Poffenbarger, SB Mirsky, MR Ryan, and BN Moebius-Clune. 2017. Estimating nitrogen mineralization from cover crop mixtures using the Precision Nitrogen Management model. Agronomy Journal 109:1944–1959.

Mirsky, SB, VJ Ackroyd, S Cordeau, W Curran, M Hashemi, CS Reberg-Horton, MR Ryan, and JT Spargo. 2017. Hairy vetch biomass across the eastern US: effects of latitude, seeding rate and date, and termination timing. Agronomy Journal 109:1510-1519.

Mirsky, SB, JT Spargo, WS Curran, CS Reberg-Horton, MR Ryan, HH Schomberg, and VJ Ackroyd. 2017. Characterizing cereal rye biomass and allometric relationships across a range of fall available N Rates in the eastern US. Agronomy Journal 109:1520-1531.

Wallace, JM, WS Curran, SB Mirsky, and MR Ryan. 2017. Tolerance of interseeded annual ryegrass and red clover cover crops to residual herbicides in mid-Atlantic corn production. Weed Technology 31:641-650.

Wallace, JM, A Williams, JA Liebert, V Ackroyd, R Vann, WS Curran, CL Keene, MJ VanGessel, MR Ryan, and SB Mirsky. 2017. Cover crop-based, organic rotational no-till corn and soybean production systems in the mid-Atlantic United States. Agriculture 7:34.

Liebert, J.A., DiTommaso, A. and Ryan, M.R. (2017) Rolled mixtures of barley and cereal rye for weed suppression in cover crop-based organic no-till planted soybean. Weed Science: 1-14.

Keene, C.L., Curran, W.S., Wallace, J.M., Ryan, M.R., Mirsky, S.B., VanGessel, M.J. and ME Barbercheck. (2017) Cover crop termination timing is critical in organic rotational no-till systems. Agronomy Journal: 109:272-282.

Giuliano, S., Ryan, M.R., Véricel, G., Rametti, G., Perdrieux, F., Justes, E. and Alletto, L. (2016) Low-input cropping systems to reduce input dependency and environmental impacts in maize production: a multi-criteria assessment. European Journal of Agronomy 76: 160–175.

DeHaan, L.R., Van Tassel, D.L., Anderson, J.A., Asselin, S.R., Barnes,  R., Baute, G.J.,  Cattani, D.J., Culman, S.W., Dorn, K.M., Hulke, B.S., Kantar, M., Larson, S., Marks, M.D., Miller, A.J., Poland, J., Ravetta, D.A., Rude, E., Ryan, M.R., Wyse, D. and Zhang, X. (2016) A pipeline strategy for grain crop domestication. Crop Science 56:917–930.

Cordeau, S., Triolet, M., Wayman, S., Steinberg, C., and Guillemin, J.P. (2016) Bioherbicides: Dead in the water? A review of the existing products for integrated weed management. Crop Protection 87: 44-49.

Wayman, S., Kissing Kucek, L., Mirsky, S.B., Ackroyd, V., Cordeau, S., Ryan, M.R. (2016) Organic and conventional farmers differ in their perspectives on cover crop use and breeding. Renewable Agriculture and Food Systems 1–10.

Bybee-Finley, K., Mirsky, S.B., and Ryan, M.R. (2016) Functional Diversity in SummerAnnual Grass and Legume Intercrops in the Northeastern United States. Crop Science 56.5: 2775-2790.

Wayman, S., Cogger, C., et al. (2015) Cover crop effects on light, nitrogen, and weeds, in organic reduced tillage. Agroecology and Food Systems. 39(6): 647-665.

Caldwell, B., Mohler, C., et al. (2014) Yields and profitability during and after transition in organic grain cropping systems. Agronomy Journal.106(3): 871-880.

Schipanski, M., Barbercheck, M., Douglas, M., Finney, D., Haider, K., Kaye, J., Kemanian, A., Mortensen, D., Ryan, M., Tooker, J., & White, C. (2014) A conceptual framework for evaluating multifunctionality of cover crops in agroecosystems. Agricultural Systems. 125:231-237.

DiTommaso, A., Ryan, M., et al. (2014) Effect of Cry3Bb Bt corn and tefluthrin on post-dispersal weed seed predation. Weed Science. 62:619-624.

Wayman, S., Cogger, C., et al. (2014) The influence of cover crop variety, termination timing and termination method on mulch, weed cover and soil nitrate in reduced-tillage organic systems. Renewable Agriculture and Food Systems.

Ward, M., Ryan, M., Curran W., & Law, J. (2014) Giant foxtail seed predation by Harpalus pensylvanicus (Coleoptera: Carabidae). Weed Science. 62:555-562.

Garrison, A., Miller, A., Ryan, M., et al. (2014) Stacked crop rotations exploit weed-weed competition for sustainable weed management. Weed Science. 62:166–176.

Camargo, G. G., Ryan, M., & Richard, T. L. (2013) Energy use and greenhouse gas emissions from agronomic crops using the Farm Energy Analysis Tool. BioScience. 64:263-273.

Mirsky, S. B., Ryan, M., et al. (2013) Overcoming weed management challenges in cover crop–based organic rotational no-till soybean production in the eastern United States. Weed Technology. 27:193-203.

Mortensen, D. A., Egan, J. F., Maxwell, B. A., Ryan, M., & Smith., R. G. (2012) Navigating a critical juncture in weed management. BioScience. 62:75-84.

Mirsky, S. B., Ryan, M., et al. (2012) Tillage issues: Cover crop-based organic rotational no-till grain production in the mid-Atlantic region. Renewable Agriculture and Food Systems. 27:31-40.

Nord, E. A., Ryan, M., et al. (2012) Effects of management type and timing on weed suppression in soybean no-till planted into rolled-crimped cereal rye. Weed Science. 60:624-633.

Ryan, M., Curran, W. S., et al. (2011) Effects of seeding rate and poultry litter on weed suppression from a rolled cereal rye cover crop. Weed Science. 59:438-444.

Mirsky , S. B., Curran, W. S., Mortensen, D. A., Ryan, M., & Shumway, D. L. (2011) Timing of cover crop management effects on weed suppression in no-till planted soybean using a roller-crimper. Weed Science. 59:380-389.

Ryan, M., Mirsky, S. B., et al. (2011) Potential synergistic effects of cereal rye biomass and soybean planting density on weed suppression. Weed Science. 59:238-246.

Ryan, M., Mortensen, D. A., et al. (2010) Elucidating the apparent maize tolerance to weed competition in long-term organically managed systems. Weed Research. 50:25-36.

Ward, M. J., Ryan, M., et al. (2011) Cover crops and disturbance influence activity-density of Amara aenea and Harpalus pensylvanicus (Coleoptera: Carabidae). Weed Science. 59:76-81.

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