Ahmad Khalilian

Biosystems Engineering
Agronomic Crops Program Team, Edisto Research and Education Center

Office: 64 Research Rd, Blacville, SC
Phone: 803-284-3343
Email: akhlln@clemson.edu
Vita: Download CV


 Educational Background

Ph.D. Agricultural Engineering
Oklahoma State University 1980

M.S. Agricultural Engineering
University of California Davis 1977

B.S. Mechanics and Farm Machinery Engineering
University of Tehran 1971

 Research Interests

Research interest: Precision farming technology, which includes development of innovative sensors, tools, and methodology for site-specific management of soil, pest, nutrient and water to enhance profits and environmental sustainability.

Other areas of interest: conservation tillage; sensor-based variable rate application systems for irrigation, nematicides, herbicides, insecticides, and nitrogen; application of compost for row crop production; energy; and hay harvesting equipment.


Christina Chiu, Marlowe Edgar Burce, Philip Virgil Astillo, Joe Mari Maja, Ahmad Khalilian, and Jeremy Greene. Development of Light Sensors to Measure Defoliation. American Journal of Agricultural Research, 2019, 4:67

Williams, P.B., Khalilian, A., Marshall, M.W., Maja, J.M., Liu, H.B., Park, D. and Nafchi, A.M. (2019) Cotton Response to Variable Nitrogen Rate Fertigation through an Overhead Irrigation System. Agricultural Sciences, 10, 66-80. https://doi.org/10.4236/as.2019.101006

Williams, P.B., Khalilian, A., Marshall, M.W., Maja, J.M., Liu, H.B., Park, D. and Nafchi, A.M. (2018) Development and Testing of a Variable Rate Nitrogen Application System through an Overhead Irrigation System. Journal of Water Resource and Protection, 10, 994-1011. https://doi.org/10.4236/jwarp.2018.1010058

Marshall, M.W. and Khalilian, A. (2018) Effects of Tillage and Planting Methods on Narrow and Wide Row Cotton Production. Agricultural Sciences, 9, 792-803. https://doi.org/10.4236/as.2018.97056

Fox, J.W., Khalilian, A., Han, Y.J., Williams, P.B., Nafchi, A.M., Maja, J.M., Marshall, M.W. and Barnes, E.M. (2018) Real-Time, Variable-Depth Tillage for Managing Soil Compaction in Cotton Production. Open Journal of Soil Science, Vol 8, No.6, 147-161. https://doi.org/10.4236/ojss.2018.86012

Khalilian, A., Marshall, M.W., Williams, P.B., Greene, J.K. and Porter, P.M. (2018) Cotton Production Systems for Soil and Energy Conservation in Coastal Plain Soils. American Journal of Plant Sciences, Vol 9, No. 7 1500-1513.

Khalilian, A, Nicholas Rogers, Phillip Williams, Young Han, Ali Mirzakhani Nafchi, Joe Maja, Michael Marshall, Jose Payero. (2017) Sensor-based algorithm for mid-season nitrogen application in corn; Open Journal of Soil Sciences, Vol. 7, No. 10, pp. 278-287. https://doi.org/10.4236/ojss.2017.710020.

Payero José, Ali Mirzakhani-Nafchi, Rebecca Davis, Ahmad Khalilian. 2017. An Arduino-based Wireless Sensor Network for Soil Moisture Monitoring Using Decagon EC-5 Sensors. Open Journal of Soil Sciences, Vol. 7, No. 10, pp. 288-300. https://doi.org/10.4236/ojss.2017.710021

Khalilian, A., Jones, M.A., Bauer, P.J. and Marshall, M.W. (2017) Comparison of Five Tillage Systems in Coastal Plain Soils for Cotton Production. Open Journal of Soil Science, Vol. 7, No. 10, pp. 245-258. https://doi.org/10.4236/ojss.2017.710018

Nafchi, A.M., Maja, J.M., Khalilian, A., Han, Y., Rogers, N., Payero, J.O., Marshall, M.W., Williams, P.B. and Fox, J. (2017) An Electro-Mechanical Controller for Adjusting Piston Pump Stroke On-the-Go for Site-Specific Application of Crop Nutrients. Agricultural Sciences, Vol.8, No. 9, pp. 949-959. https://doi.org/10.4236/as.2017.89069

Payero, J., A. Mirzakhani-Nafchi, A. Khalilian, X. Qiao, and R. Davis. 2017. Development of a Low-Cost Internet-of-Things (IoT) System for Monitoring Soil Water Potential Using Watermark 200SS Sensors. Journal of Advances in Internet of Things, Vol.7, No. 3, pp. 71-86. https://doi.org/10.4236/ait.2017.73005

Khalilian, A., Han, Y.J., Maja, J.M., Marshall, M.W., Mirzakhani-Nafchi, A., Payero, J.O. and Anco, D.J. 2017. Development of GPS-Based Multi-Channel Controllers for Research Plot Pesticide Applicators. Agricultural Sciences, Vol. 8, No. 4, pp.302-315.

Lampson, B. D., A. Khalilian, J. K. Greene, Y. J. Han, and D. C. Degenhardt. 2017. Development of a Portable Electronic Sensor for Detection of Megacopta cribraria (Hemiptera: Plataspidae). Journal of Advances in Entomology, Vol. 5, No. 3, pp.75-86.

Payero, J., X. Qiao, A. Khalilian, A. Mirzakhani-Nafchi, and R. Davis. 2017. Evaluating the Effect of Soil Texture on the Response of Three Types of Sensors Used to Monitor Soil Water Status. Journal of Water Resource and Protection, Vol. 9, No. 6, pp.566-577.

Marshall, Michael, Phillip Williams, Ali Mirzakhani Nafchi, Joe Mario Maja, Jose Payero, John Mueller, and Ahmad Khalilian. 2016. Influence of Tillage and Deep Rooted Winter Cover Crops on Soil Properties, Pests, and Yield Responses in Cotton; Journal of Soil Sciences, Vol 6 No. 10 pp. 149-158. http://dx.doi.org/10.4236/ojss.2016.610015

Qiao, X., Khalilian, A., Payero, J.O., Maja, J.M., Privette, C.V. and Han, Y.J. (2016) Evaluating Reflected GPS Signal as a Potential Tool for Cotton Irrigation Scheduling. Advances in Remote Sensing, Vol. 5 No. 3 pp. 157-167,

Qiao, X., H. J. Farahani, A. Khalilian, E. M. Barnes. 2016. Cotton Water Productivity and Growth Parameters in the Humid Southeast – Experimentation and Modeling. Transactions of the ASABE, 59(3): 949-962

Han, Y. J., A. Khalilian, J. O. Payero, N. Rogers. 2016. Development of a Portable Electro-Mechanical Educational Model for Variable Rate Center Pivot Irrigation Technology. Journal of Water Resource and Protection, Vol.8 No.4 pp. 449-458, http://dx.doi.org/10.4236/jwarp.2016.84038

Privette III, C.V., Khalilian, A., Bridges, W., Katzberg, S., Torres, O., Han, Y.J., Maja, J.M. and Qiao, X. (2016) Relationship of Soil Moisture and Reflected GPS Signal Strength. Advances in Remote Sensing, 5, 18-27. http://dx.doi.org/10.4236/ars.2016.51002

Holguin, C. M., J. D. Mueller, A. Khalilian and P. Agudelo. 2015. Population dynamics and spatial distribution of Columbia lance nematode in cotton. Applied Soil Ecology 95 (2015) 107-114, http://dx.doi.org/10.1016/j.apsoil.2015.06.004.

Khalilian, A., Y.J. Han , M.W. Marshall , S. Gorucu, Y. Abbaspour-Gilandeh, K.R. Kirk; 2014; Evaluation of the Clemson instrumented subsoiler shank in coastal plain soils, Computers and Electronics in Agriculture; 109 (2014) 46–51.

Lampson, B. D., A. Khalilian, J. K. Greene, Y. J. Han, and D. C. Degenhardt. 2014. Development of a Portable Electronic Nose for Detection of Cotton Damaged by Nezara viridula (Hemiptera: Pentatomidae); Journal of Insects; Volume 2014, Article ID 297219, Pp. 1-8, http://dx.doi.org/10.1155/2014/297219

Holguin, C. M., P. Gerard, J. D. Mueller, A. Khalilian and P. Agudelo. 2015. Spatial distribution of reniform nematode in cotton as influenced by soil texture and crop rotations. Journal of Phytopathology, 105 (5) 674-683, http://dx.doi.org/10.1094/PHYTO-09-14-0240-R.

Lampson, B. D., Y. J. Han, A. Khalilian, J. K. Greene, and J. Hallstrom. 2014. Development of a Portable Electronic Nose for Detection of Pests and Plant Damage, Computers and Electronics in Agriculture; 108 (2014) 87-94.

Miller, G., R. L. Hassell, A. Khalilian, J. W. Adelberg, H. J. Farahani, and C. E. Wells. 2014. Field evaluation and performance of capacitance probes for automated drip irrigation of watermelons, Agricultural Water Management 131 (2014) 124– 134.

Overstreet, C., E. C. McGawley, A. Khalilian, T. L. Kirkpatrick, W. S. Monfort, W. Henderson, and J. D. Mueller. 2014. Site Specific Nematode Management—Development and Success in Cotton Production in the United States; Journal of Nematology 46(4):309–320. 2014.

Payero, J.O., and Khalilian, A., 2014. Adopting Irrigation to Reduce Climate Risk. Extension resources, published by Southeast Climate Extension, University of Florida, http://www.agroclimate.org/seclimate/extension-resources/

Miller, G., A. Khalilian, J. W. Adelberg, H. J. Farahani, R. L. Hassell, and C. E. Wells. 2013. Grafted Watermelon Root Length Density and Distribution under Different Soil Moisture Regimes. American Society for Horticultural Science, Vol. 48 (8): 1021-1026.

Lampson B. D., Y. J. Han, A. Khalilian, J.K. Greene, 2013. Automatic detection and identification of brown stink bug, Euschistus servus, and southern green stink bug, Nezara viridula, (Heteroptera: Pentatomidae) using intraspecific substrate-borne vibrational signals. Computers and Electronics in Agriculture 91 (2013) 154–159.

Busscher, W.J., A. Khalilian, and M.A. Jones. 2012. Tillage Management for Cotton in SE Coastal Soils during Dry Years. Journal of Communications in Soil Science and Plant Analysis, 43:19, 2564-2574, http://dx.doi.org/10.1080/00103624.2012.711878.

Degenhardt, D. C., J. K. Greene, and A. Khalilian. 2012. Temporal dynamics and electronic nose detection of stink bug-induced volatile emissions from cotton bolls. Hindawi Publishing Corporation, Psyche, Volume 2012, Article ID 236762, http://www.hindawi.com/journals/psyche/2012/236762/

Khalilian, A. 2012. Subsurface Drip Irrigation. In Cotton Irrigation Management for Humid Regions, Ed. C. Perry & E. Barnes, Peer reviewed Cotton Inc. publication, Pp 43-48

Privette, V., Charles, Ahmad Khalilian, Omar Torres, Stephen Katzberg. 2011. Utilizing space-based GPS technology to determine hydrological properties of soils. Journal of Remote Sensing of Environment, 115 (2011) 3582–3586. http://dx.doi.org/10.1016/j.rse.2011.08.019

Wiatrak, P., A. Khalilian and G. Chen. 2011. Corn response to nitrogen timing and rate under strip tillage and low-yield environment in southeastern coastal plains. American Journal of Agricultural and Biological Sciences 6 (1): 155-161.

Degenhardt, D. C., J. K. Greene, A. Khalilian, and R. B. Reeves. 2011. Volatile emissions from developing cotton bolls in response to hemipteran feeding damage. J. Entomol. Sci. 46(3): 177-190.

Gorucu, S., A. Khalilian, Y. J. Han, R. B. Dodd. 2011. Variable depth tillage based on geo referenced soil compaction data in coastal plain soils. International Journal of Applied Science and Technology, 1(2): 22-32.

Lampson, B., Y. Han, A. Khalilian, J. Greene, R. Mankin, and E. Foreman. 2010. Characterization of Substrate-Borne Vibrational Signals of Euschistus servus (Heteroptera: Pentatomidae). American Journal of Agricultural and Biological Sciences 5 (1): 32-36, 2010

Mueller, J.D., A. Khalilian, W.S. Monfort, R.F. Davis, T.L. Kirkpatrick, B.V. Ortiz, and W.G. Henderson. 2010. Site-specific detection and management of nematodes. In “Precision Crop Protection”, Springer Science + Business Media B.V. (24): 385-402, 2010.

Henderson, W.G., Khalilian, A., Y. J. Han and G.K. Greene. 2010. Detecting stink bugs/damage in cotton utilizing a portable electronic nose. Computers and Electronics in Agriculture 70 (2010): 157–162.

Han, Y. J., A. Khalilian, T. O. Owino, H. J. Farahani, S. Moore, 2009. Development of Clemson variable-rate lateral irrigation system, Computers and Electronics in Agriculture 68 (2009) 108–113.

Keskin, M., Y. J. Han, R. B. Dodd and A. Khalilian. 2008. Reflectance-based sensor to predict visual quality ratings of turfgrass. Applied Engineering in Agriculture, 24(6):855-860.

Abbaspour Y., V.R. Sharabiani, and A. Khalilian. 2009. Effects of Tillage Methods on Soil Fragmentation in Loamy-Clay Soils. American Journal of Agricultural and Biological Sciences 4 (2): 131-136, 2009

Alimardani, R., Abbaspour-Gilandeh, Y., Khalilian, A., Keyhani, A., Sadati, S.H. 2009. Prediction of draft force and energy of subsoiling operation using Artificial Neural Network model. Journal of Food, Agriculture and Environment, 7(3-4): 537 - 542.