2023
Liebert, J, JH Cherney, QM Ketterings, SB Mirsky, CJ Pelzer, and MR Ryan. 2023. Winter cereal species, cultivar, and harvest timing affect trade-offs between forage quality and yield. Frontiers in Sustainable Food Systems 7:96.
Liebert, J, SB Mirsky, CJ Pelzer, and MR Ryan. 2023. Optimizing organic no-till planted soybean with cover crop selection and termination timing. Agronomy Journal 115:1938–1956.
Culman, S, P Pinto, J Pugliese, T Crews, L DeHaan, JM Jungers, J Larsen, MR Ryan, M Schipanski, MR Sulc, S Wayman, MH Wiedenhoeft, DE Stoltenberg, and V Picasso Risso. 2023. Forage harvest management impacts Kernza intermediate wheatgrass productivity across North America. Agronomy Journal 115, 2424–2438.
Rowland, AV, UD Menalled, CJ Pelzer, LM Sosnoskie, A DiTommaso, and MR Ryan. 2023. High seeding rates, inter-row mowing, and electrocution for weed management in organic no-till planted soybean. Weed Science 1-42.
Chami, B, MT Niles, S Parry, SB Mirsky, VJ Ackroyd, and MR Ryan. 2023. Incentive programs promote cover crop adoption in the northeastern United States. Agricultural & Environmental Letters 8, e20114.
Menalled, UD, CJ Pelzer, A DiTommaso, and MR Ryan. 2023. Effect of multi-tactic weed management on weed suppression and yield in the establishment year of intermediate wheatgrass. Agrosystems, Geosciences & Environment 6, e20426.
Allen, J, G Adeux, CJ Pelzer, S Wayman, AB Jernigan, S Cordeau, A DiTommaso, and MR Ryan. 2023. No yield benefit from starter fertilizer in soybean no-till planted into rolled- crimped cereal rye. Agrosystems, Geosciences & Environment 6, e20434.
Menalled, UD, RG Smith, S Cordeau, A DiTommaso, SJ Pethybridge, MR Ryan. 2023. Phylogenetic relatedness can influence cover crop-based weed suppression. Scientific Reports. Scientific Reports, 13: 17323.
Bybee-Finley, KA, UD Menalled, CJ Pelzer, L Ruhl, NP Lounsbury, ND Warren, JH Cherney, HM Darby, RG Smith, MR Ryan. 2023. Quantifying the roles of intraspecific and interspecific diversification strategies in forage cropping systems. Field Crops Research 302.
2022
Liebert, J, and MR Ryan. 2022. Sustainable management practices vary with farm size in US organic crop production. Nature Plants, 8, 871–872.
Brown, B, ER Gallandt, A DiTommaso, P Salon, RG Smith, MR Ryan, S Cordeau. 2022. Improving weed management based on the timing of emergence peaks: A case study of problematic weeds in Northeast USA. Frontiers in Agronomy
Liebert, J, R Benner, R Bezner Kerr, T Björkman, K DeMaster, S Gennet, MI Gómez, AK Hart, C Kremen, A Power, MR Ryan. 2022. Get big or get out? Farm size affects the use of agroecological practices on organic farms in the United States. Nature Plants 8, 897–905.
Menalled, U, G Adeux, S Cordeau, R Smith, SB Mirsky, MR Ryan. 2022. Cereal rye mulch biomass and crop density affect weed suppression and community assembly in no-till planted soybean. Ecosphere 13:6.
Lounsbury, NP, ND Warren, J Hobbie, H Darby, MR Ryan, DA Mortensen, and RG Smith. 2022. Seed size variability has implications for achieving cover cropping goals. Agricultural & Environmental Letters, 7(1):e20080.
Averill, KM, AS Westbrook, L Pineda-Bermudez, RP O’Briant, A DiTommaso, and MR Ryan. 2022. Effects of Tertill® weeding robot on weed abundance and diversity. Agronomy 12(8), p.1754.
Moore, VM, B Schlautman, S Fei, L Roberts, M Wolfe, MR Ryan, S Wells and A Lorenz. 2022. Plant breeding for intercropping in temperate field crop systems: a review. Frontiers in Plant Science 13:843065.
Fulcher, M, E Law, S Wayman, MR Ryan, and G Bergstrom. 2022. Fungal plant pathogens observed on perennial cereal crops in New York during 2017–2018. Renewable Agriculture and Food Systems. 1-13.
Chapman, M, S Wiltshire, P Baur, T Bowles, L Carlisle, F Castillo, K Esquivel, S Gennet, A Iles, D Karp, C Kremen, J Liebert, EM Olimpi, J Ory, MR Ryan, A Sciligo, J Thompson, H Waterhouse, C Boettiger. 2022. Social-ecological feedbacks drive tipping points in farming system diversification. One Earth 5:283 – 292.
Law, EP, S Wayman, CJ Pelzer, SW Culman, MI Gómez, A DiTommaso, and MR Ryan. 2022. Multi-Criteria assessment of the economic and environmental sustainability characteristics of Intermediate Wheatgrass grown as a dual-purpose grain and forage crop. Sustainability 14: 3548.
Bybee-Finley, KA, S Cordeau, S Yvoz, SB Mirsky, MR Ryan. 2022. Finding the right mix: a framework for selecting seeding rates for cover crop mixtures. Ecological Applications 32:e02484.
2021
Law, EP, S Wayman, CJ Pelzer, A DiTommaso, MR Ryan. 2021. Tradeoffs between grain and straw production from perennial Kernza intermediate wheatgrass and annual winter wheat in central New York State. Agronomy Journal.
MR Ryan, S Wayman, CJ Pelzer, CA Peterson, UD Menalled, and TJ Rose. 2021. Winter wheat (Triticum aestivum) tolerance to mulch. Plants 10:2047.
Cordeau, S, S Wayman, QM Ketterings, CJ Pelzer, A Sadeghpour, and MR Ryan. 2021. Long-term soil nutrient management affects taxonomic and functional weed community composition and structure. Frontiers in Agronomy 3:636179.
Menalled, UD, SJ Pethybridge, CJ Pelzer, RG Smith, A DiTommaso, and MR Ryan. 2021. High seeding rates and low soil nitrogen environments optimize weed suppression and profitability in organic no-till planted soybean. Frontiers in Agronomy 3:678567.
2020
Law, E, C Pelzer, S Wayman, A DiTommaso, M Ryan. 2020. Strip-tillage renovation of intermediate wheatgrass (Thinopyrum intermedium) for maintaining grain yield in mature stands. Renewable Agriculture and Food Systems 1-7.
Menalled UD, KA Bybee-Finley, RG Smith, A DiTommaso, SJ Pethybridge, MR Ryan. 2020. Soil-Mediated Effects on Weed-Crop Competition: Elucidating the Role of Annual and Perennial Intercrop Diversity Legacies. Agronomy Journal 10(9):1373.
Kissing Kucek, L, MD Azevedo, SS Eagen, NJ Ehlke, RJ Hayes, SB Mirsky, C Reberg-Horton, MR Ryan, S Wayman, NP Wiering, and H Riday. 2020. Seed dormancy in hairy vetch (Vicia villosa roth) is influenced by genotype and environment. Agronomy 10:1804.
2019
Mouillon, P, BA Caldwell, S Cordeau, C Pelzer, S Wayman, MR Ryan. 2019. Crop density affects weed suppression in organically managed sunflower. Agronomy Journal 112: 450–457.
Jernigan, AB, K Wickings, BA Caldwell, L Drinkwater, CL Mohler, C Pelzer, S Wayman, and MR Ryan. 2020. Legacy effects of contrasting organic grain cropping systems on soil health indicators, soil invertebrates, weeds, and crop yield Agricultural Systems 177: 102719.
Kissing Kucek, L, M Poskaitis, CJ Pelzer, S Seehaver, S Wayman, N Wiering, N Ehlke, J Maul, C Reberg-Horton, SB Mirsky, MR Ryan, H Riday. 2019. Environmental influences on the relationship between fall and spring vigor in hairy vetch (Vicia villosa Roth). Crop Science 59: 2443-2454.
Wayman, S, V Debray, S Parry, C David, and MR Ryan. 2019. Perspectives on perennial grain crop production differ between organic and conventional farmers in the United States and France. Agriculture 9(11) 244.
Ball, MG, BA Caldwell, A DiTommaso, LE Drinkwater, CL Mohler, RG Smith, and MR Ryan. 2019. Weed community structure and soybean yields in a long-term organic cropping systems experiment. Weed Science 67(6): 673-681.
Duchene, O, MR Ryan, LR DeHaan, TE Crews, F Celette, and C David. 2019. Integrating multipurpose perennial grains in Western Europe farming systems. Agriculture, Ecosystems, and Environment 284:106591.
Pethybridge, SJ, B Brown, JR Kikkert, and MR Ryan. 2019. Rolled–crimped cereal rye residue suppresses white mold in no-till soybean and dry bean Renewable Agriculture and Food Systems 1-9.
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. Renewable Agriculture and Food Systems 1-11.
2018
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. No-till and cropping system diversification improve soil health and crop yield 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.
2017
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.
2016
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 Summer Annual Grass and Legume Intercrops in the Northeastern United States. Crop Science 56.5: 2775-2790.
2015
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.
2014
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.
2013
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.
2012
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.
Curran, WS, MR Ryan, MW Myers, and P Adler. 2012. Seeding date and weed control effects on switchgrass (Panicum virgatum) establishment. Weed Technology 26:248-255.
2011
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.
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.
Egan, JF, B Maxwell, DA Mortensen, MR Ryan, and RG Smith. 2011. 2,4-D resistant crops and the potential for evolution of 2,4-D resistant weeds. Proceedings of the National Academy of Sciences 108:E37.
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.
2010
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.
Ryan, MR, RG Smith, SB Mirsky, DA Mortensen, and R Seidel. 2010. Management filters and species traits: Weed community assembly in long-term organic and conventional systems. Weed Science 58:265-277.
Smith, RG, DA Mortensen, and MR Ryan. 2010. A new hypothesis for the functional role of diversity in mediating resource pools and weed–crop competition in agroecosystems Weed Research 50:37-48.
Ryan, MR, DA Mortensen, L Bastiaans, JR Teasdale, WS Curran, R Seidel, PR Hepperly, and DO Wilson. 2010. Elucidating the apparent maize tolerance to weed competition in long-term organically managed systems. Weed Research 50:25-36.
2009
Ryan, MR, RG Smith, DA Mortensen, R Seidel, JR Teasdale, WS Curran, and DL Shumway. 2009. Weed-crop competition relationships differ between organic and conventional cropping systems. Weed Research 49:572-580.
Mirsky, SB, WS Curran, DA Mortensen, MR Ryan, and DL Shumway. 2009. Control of cereal rye with a roller/crimper as influenced by cover crop phenology. Agronomy Journal 101:1589-1596.