Profile

Education

• B.S. Biotechnology, Nanjing Agricultural University, Nanjing, China (2011)
• M.S. Developmental Biology, Nanjing Agricultural University, Nanjing, China (2014)
• Ph.D. Agronomy, Texas A&M University, College Station, TX (2018)

Professional Experience

• Assistant scientist, Kansas State University Agricultural Research Center, Hays, KS (2018-2022)

Research Interest

My research and extension program focuses on developing integrated weed management strategies for Washington State irrigated specialty crops. I work to increase stakeholders’ knowledge of problematic weed species and of both chemical and non‑chemical weed management tools. The research projects my program conducts span from small-plot experiments at IAREC to on-farm trials with growers and industry collaborators, many of which are driven by questions raised by commodity commissions and advisory boards. These efforts provide practical recommendations that reduce crop–weed competition, delay the development of herbicide resistance, and balance the long‑term sustainability of weed management with economic viability. My goal is to help growers choose the best weed management practices for their cropping systems, reduce yield and quality losses caused by weeds, and minimize weed management inputs while maintaining or increasing profitability.

Recent Publications

• Liu, R., Singh, V., Bagavathiannan, M.V. (2025) Herbicide resistance distribution in Echinochloa colona in Texas rice production. Weed Technology. 39, 1-8
• Pavlovic, P., Colquhoun, J.B., Korres, N.E., Landau, C.A., Liu, R., Lowry, C.J., Martin, N.F., Peachey, E., Scott, B., Sosnoskie, L.M., VanGessel M.J. (2025) Associations among weed communities, management practices, and environmental factors in US snap bean (Phaseolus vulgaris) production. PloS One. 20, e0332925.
• Pavlovic, P., Colquhoun, J., Korres, N.E., Liu, R., Lowry, C.J., Peachey, E., Scott, B., Sosnoskie, L.M., Martin, W. (2025). Weed communities of snap bean fields in the United States. Weed Science. 73, 1–11.
• Pavlovic, P., Colquhoun, J., Korres, N.E., Liu, R., Lowry, C.J., Peachey, E., Scott, B., Sosnoskie, L.M., Martin, W. (2025) Crop and Weed Management Practices of Snap Bean (Phaseolus vulgaris) Production Fields in the United States. Horticulture Science. 60, 267-272
• Kumar, V., Liu, R., Chauhan, D., Perumal, R., Morran, S., Gaines, T.A., and Jha, P. (2023) Characterization of imazamox-resistant shattercane (Sorghum bicolor L.) populations from Kansas. Weed Technology, 376-382
• Kumar, V., Aulakh, J.S., Liu, R., Jhala, A. (2023) Late postemergence glufosinate-based programs for glyphosate-resistant Palmer amaranth control in dicamba/ glufosinate/ glyphosate-resistant soybean. Agrosystems, Geosciences & Environment, 6, e20378
• Dhanda, S., Kumar, V., Sharma, A., Liu, R. (2023) Tumble windmill grass (Chloris verticillata Nutt.) control with POST herbicides. Crop, Forage & Turfgrass Management, 9, 20238
• Liu, R., Singh, V., Abugho S., Lin H., Zhou X., Bagavathiannan, M.V. (2022) Morphophysiological diversity and its association with herbicide resistance in Echinochloa Weed Science, 70:26-35
• Liu, R., Kumar, V., Jha P., Stahlman P.W. (2022) Emergence pattern and periodicity of Palmer amaranth (Amaranthus palmeri) populations from southcentral Great Plains. Weed Technology, 36:1-8
• Liu, R., Kumar, V., Jhala A., Jha P., Stahlman P. W. (2021) Control of glyphosate- and 4-hydroxyphenylpyruvate dioxygenase (HPPD)-inhibitor-resistant Palmer amaranth (Amaranthus palmeri) in glufosinate-resistant corn. Agronomy Journal, 113:5362-5372

Related Sites

• Google scholar
• Research Gate
• Prosser IAREC