Mark Shankle

Mark Shankle

Research Professor

Agronomy - Row Crop Production

Mailing Address:
North Mississippi Research and Extension Center
P.O. Box 1690
Verona, MS 38879
Physical Address:
Pontotoc Ridge-Flatwoods Branch Experiment Station
8320 Hwy 15 South
Pontotoc, MS 38863
  • Ph.D., Mississippi State University
  • M.S., University of Tennessee
  • B.S., University of Tennessee
  • B.S., University of Tennessee

Society Membership:
  • American Society of Agronomy
  • American Society of Agronommy, Mississippi Section
  • American Society of Horticulture Science
  • American Society of Horticulture Sciences, Southern Region
  • Gamma Sigma Delta, Honorary Society of Agriculture
  • Mississippi Agricultural Industry Council
  • Mississippi Association of Plant Pathologists and Nematologists
  • Mississippi Entomological Association
  • Mississippi Sweet Potato Council
  • Mississippi Weed Science Society
  • National Sweet potato Collaborators Group
  • Sigma Xi, Scientific Research Society
  • Southern Association of Agricultural Scientists
  • Southern Weed Science Society
  • Weed Science Society of America

  • Good laboratory practice standards
  • EPA worker protection as specified in 40 CFR 170
  • Commercial pesticide applicator in MS
  • Class D drivers license
  • Radioactive labeled materials


  • Adeli, A., J. P. Brooks, J. J. Read, G. Feng, D. Miles, M. W. Shankle, N. Barksdale, J. N. Jenkins. 2020. Management strategies on an upland soil for improving soil properties. Communications in Soil Science and Plant Analysis 51(3):413-429 Download
  • Chen, Z., K. R. Reddy, M. Chen, W. Gao, S. Taduri, S. L. Meyers, M. Shankle. 2020. Ultraviolet (UV) B effects on growth and yield of three contrasting sweet potato cultivars. Photosynthetica 58:37-44.  Download
  • He, Z., D. C. Olk, H. Tewolde, H. Zhang, M. W. Shankle. 2020. Carbohydrate and amino acid profiles of cotton plant biomass products. Agriculture 10(1):2.  Download
  • Abukari, I. I., M. W. Shankle, K. R. Reddy, W. Gao, S. L. Meyers. 2019. Impacts of S-metolachlor application timing on sweetpotato growth and development. American Journal of Plant Sciences 10:780-795.  Download
  • Adeli, A., J. P. Brooks, J. J. Read, G. Feng, D. Miles, M. W. Shankle, J. N. Jenkins. 2019. Corn and soybean grain yield responses to soil amendments and cover crop in upland soils. Journal of Plant Nutrition 42(19):2484-2497.  Download
  • Adeli, A., J. P. Brooks, J. J. Read, M. W. Shankle, G. Feng, J. N. Jenkins. 2019. Poultry litter and cover crop integration into no-till cotton on upland soil. Agronomy Journal 3(4):2097-2107.  Download
  • Al-Mohanna, T., N. Ahsan, N. Bokros, G. Dimlioglu, K. R. Reddy, M. W. Shankle, G. V. Popescu, S. C. Popescu. 2019. Proteomics and proteogenomics analysis of sweetpotato (Ipomoea batatas) leaf and root. Journal of Proteome Research 18(7):2719-2734. Download
  • Lu, Z., G. V. Wilson, M. W. Shankle. 2019. Measurements of soil profiles in the vadose zone using the high-frequency surface waves method. Journal of Applied Geophysics 169:142-153.  Download
  • Meyers, S. L., M. W. Shankle, T. F. Garrett. 2019. Sweetpotato tolerance to saflufenacil and rimsulfuron/thifensulfuron-methyl applied pretransplanting. Weed Technology 33(6):855-858.  Download
  • Meyers, S. L., S. Chaudhari, K. M. Jennings, D. K. Miller, M. W. Shankle. 2019. Response of sweetpotato to pendimethalin application rate and timing. Weed Technology 34(2):301-304. Download
  • Snyder, R. G., C. J. Morris, S. L. Meyers, J. L. Main, M. W. Shankle. 2019. Environmental control for greenhouse-grown sweetpotato slips. Mississippi State University Extension Service 3368. Download
  • Brooks, J., H. Tewolde, A. Adeli, M. W. Shankle, T. Way, R. Smith, I. Pepper. 2018. Soil microbiological impact of cover crop and fall-applied poultry litter in subsurface bands. Journal of Environmental Quality 47(3):427-435. Download
  • He, Z., D. Olk, H. Zhang, H. Tewolde, M. W. Shankle. 2018. Amino acid and carbohydrate profiles in cotton plant biomass products. National Cotton Council 115-119. Download
  • Tewolde, H., M. W. Shankle, T. R. Way, D. H. Pote, K. R. Sistani, Z. He. 2018. Poultry litter band placement affects accessibility and conservation of nutrients and cotton yield. Agronomy Journal 110(2):675-684. Download
  • Tewolde, H., M. W. Shankle, T. R. Way, D. H. Pote, K. R. Sistani. 2018. Poultry litter band placement in no-till cotton affects soil nutrient accumulation and conservation. Soil Science Society of America 82:1459-1468. Download
  • Wijewardana, C., K. R. Reddy, M. W. Shankle, S. Meyers, W. Gao. 2018. Low and high-temperature effects on sweetpotato storage root initiation and early transplant establishment. Scientia Horticulturae 240:38-48. Download
  • He, Z., H. Zhang, H. Tewolde, M. W. Shankle. 2017. Chemical charaterization of cotton plant parts for multiple uses. Agricultural & Environmental Letters 2:110044. Download
  • Krapfl, K. J., S. D. Roberts, J. A. Hatten, B. S. Baldwin, R. J. Rousseau, M. W. Shankle. 2017. Establishment phase productivity of loblolly pine and switchgrass when grown across a gradient of cultural treatment and site productivity. Forest Ecology and Management 400: 228-237. Download
  • Kushla, J. D., H. G. Gordon, R. K. Grala, W. D. Jones, J. C. Jones, M. W. Shankle. 2017. Agroforestry in the Southern U.S.: Important lessons learned. Journal of Global Agriculture and Ecology 7(4):128-137.
  • Meyers, S. L., M. W. Shankle, J. L. Main, B. Gajanayake, K. R. Reddy. 2017. Sweetpotato storage root initiation. Mississippi State University Extension Service Publication 2809. Download
  • Meyers, S. L., M. W. Shankle. 2017. An evaluation of metam-potassium and s-metolachlor pre for yellow nutsedge (cyperus esculentus) management in sweetpotato. Weed Technology 31(3):436-441. Download
  • Krapfl, K. J., J. A. Hatten, S. D. Roberts, B. S. Baldwin, R. J. Rousseau, M. W. Shankle. 2016. Capacity of biochar application and nitrogen fertilization to mitigate grass competition upon tree seedlings during stand regeneration. Forest Ecology and Management 376:298-309. Download
  • Meyers, S. L., M. W. Shankle. 2016. Postemergence yellow nutsedge management in sweetpotato. Weed Technology 30:148-153. Download
  • Abukari, I. A., M.W. Shankle, K.R. Reddy. 2015. Effect of S-metolachlor and rainfall on sweetpotato (Ipomoea batatus (L.) Lam] growth and development. Scientia Horticulturae 185:98-104. Download
  • Abukari, I. A., M.W. Shankle, K.R. Reddy. 2015. Response of sweetpotato (Ipomoea batatus (L.) Lam] to S-metolachlor and rainfall under three temperature regimes. American Journal of Plant Science 6:702-717. Download
  • Gajanayake, B., K.R. Reddy, and M.W. Shankle. 2015. Qualifying growth and developmental responses of sweetpotato to mid and late season temperature. Agronomy Journal 107:1854-1862. Download
  • Golden, B. R., W. E. Clark, D. M. Dodds, N. W. Buehring, L. L. Falconer, M. W. Shankle, T. P. Wallace. 2015. Mississippi Cotton Variety Trials 2014. Mississippi Agricultural and Forestry Experiment Station, Information Bulletin 495, Mississippi State University. 23 pp. Download
  • Meyers, S. L., M. W. Shankle. 2015. Interference of Yellow Nutsedge (Cyperus esculentus) in 'Beauregard' Sweet Potato (Ipomoea batatas). Weed Technology 29(4):854-860. Download
  • Meyers, S.L., M.W. Shankle. 2015. Nutsedge Management in Mississippi Sweetpotatoes Mississippi State University Extension Service, Information Sheet 2909, Mississippi State University. 4 pp. Download
  • Gajanayake, B., Reddy, K.R., Shankle, M.W., and Arancibia, R.A. 2014. Growth, developmental, and physiological responses of two sweetpotato (Ipomoea batatas L. [Lam]) cultivars to early season soil moisture deficit. Scientia Horticulturae, Vol. 168: 218-228. Download
  • Gajanayake, B., Reddy, K.R., Shankle, M.W., Arancibia, R.A., and Villordon, A.O.. 2014. Quantifying Storage Root Initiation, Growth, and Developmental Responses of Sweetpotato to Early Season Temperature. Agronomy Journal, Vol. 106(5): 1795-1804. Download
  • Hayes, B.H., J. Ward, J.W. Lowe, J.D. Davis, M.W. Shankle, and R. Arancibia. 2014. Development of a Mechanical Undercutting System to Minimize Sweetpotato Skinning During Harvest . Applied Engineering in Agriculture, Vol. 30(3):355-360. Download
  • Krapfl, K.J., J. Hatten, S.D. Roberts, B.S. Baldwin, R.J. Rousseau, and M.W. Shankle. 2014. Soil Properties, Nitrogen Status, and Switchgrass Productivity in a Biochar-Amended Silty Clay Loam. Soil Science Society of America Journal, Vol. 78(S1):136-145. Download
  • Meyers, S.L., Arancibia, R.A., Shankle, M.W., Main, J., Gajanayake, B., and Reddy, K.R. 2014. Sweet Potato Storage Root Initiation. Mississippi State University Extension Service, Publication 2809, Mississippi State University. Download
  • Tewolde, H., T. Way, D.H. Pote, A. Adeli, J.P. Brooks, and M.W. Shankle. 2013. Method of Soil Sampling following Subsurface Banding of Solid Manures. Agronomy Journal, Vol. 105(2):519-526. Download
  • Wang, X., R. Arancibia, J.L. Main, M.W. Shankle, and D. LaBonte. 2013. Preharvest foliar applications of ethephon increases the skin lignin/suberin content and the resistance to skinning in sweetpotato storage roots. HortScience, Vol. 48:1270-1274. Download
  • Bandara, G., K.R. Reddy, M.W. Shankle, and A. Arancibia. 2012. Sweetpotato growth and developmental responses to soil moisture deficits during the early-season. HortScience 47 (9):S43.
  • Shankle, M.W., T.F. Garrett, A. Arancibia, and J.L. Main. 2012. Fertilizer applications to Mississippi sweetpotato. HortScience 47(9):S41.
  • Wang, X.W., A. Arancibia, J.L. Main, M.W. Shankle, C.A. Clark. 2012. Changes in phenolic content in sweetpotato subjected to water stress and virus infections. HortScience 47 (9):S40.
  • Adeli, A., M.W. Shankle, H. Tewolde, J.P. Brooks, K.R. Sistani, M.R. McLaughlin, D.E. Rowe. 2011. Effects of surface incorporation of broiler litter applied to no till cotton on runoff quality. Journal of Environmental Quality 40(2):566-574. Download
  • Tewolde, H., M.W. Shankle, A. Adeli, K.R. Sistani, D.E. Rowe. 2009. Macronutrient concentration in plant parts of cotton fertilized with broiler litter in a marginal upland soil. Soil and Tillage Research 105(1):1-11. Download
  • Adeli, A., M.W. Shankle, H. Tewolde, K.R. Sistani, D.E. Rowe. 2008. Nutrient dynamics from broiler litter applied to no-till cotton in an upland soil. Agronomy Journal 100(3):564-570. Download
  • Tewolde, H., M.W. Shankle, K.R. Sistani, A. Adeli, D.E. Rowe. 2008. No-till and conventional-till cotton response to broiler litter fertilization in an up land soil. Agronomy Journal 100(3):502-509. Download