Distinguished Professor Emeritus
Biological and Agricultural Engineering
Precision agriculture or SSCM, Sensor development, Instrumentation, Machinery design, Variability and mapping, GIS, Mathematical Modeling of biological and physical processes, Soil dynamics, Tillage, Traction, Soil compaction, and Infiltration and irrigation management.
Andrade-Sanchez P, and S. K. Upadhyaya 2018. Precision tillage Systems. In Precision Agriculture for Sustainability. Jhon Stafford (eds). Ch 12. 12pp. Burleigh Dodds Science Publishing. Cambridge, UK.
Kizer, E., S. K. Upadhyaya, C. Ko-Madden, F. Rojo, K. Drechsler, and J. Meyers.2018. Good to the last drop-Getting the most out of precision irrigation. Progressive Crop Consultant. May/June: 20,22,24-26.
Upadhyaya, S. K, E. Kizer, C. Ko-Madden, F. Rojo, K. Drechsler, and J. Meyers. 2017. Precision irrigation in orchard crops based on plant water status. May/June 2017. Progressive Crop Consultant. P24-29.
Dhillon, R., S. Upadhyaya, F. Rojo, J. Roach, R. Coates, and M. Delwiche. 2017. Development of a continuous leaf monitoring system to predict plant water stress. Transaction of the ASABE: 57(1):297-304. (doi: 10.13031/trans.11962).
Sakai, K., S. Upadhyaya, P. Andrade-Sanchez, and N. Sviridova. 2017. Chaos emerging in soil failure patterns observed during tillage: normalized deterministic nonlinear prediction (NDNP) and its application. Chaos. An Interdisciplinary Journal of Nonlinear Science. 27:033115.
Rojo, F., J. Zhang, S. Upadhyaya and Q. Zhang. 2017. Light interception and canopy sensing for tree fruit canopy management. Chapter 4. In Automation in Tree Fruit Production: Principles and Practice. Edited by Q. Zhang. P 43-74.
Symons, J., D. Hawkins, D. Fyhrie, S. Upadhyaya, and S. Stover. 2017. Modeling the effect of race surface and race horse limb parameters on in silico fetlock motion and propensity for injury. Equine Veterinary Journal 49:681-687.
Symons, J., D. Hawkins, D. Fyhrie, S. Upadhyaya, and S. Stover. 2016. Hitting the ground running: Evaluating an integrated racehorse limb and race surface computational model. Journal of Biomechanics 49(9):1711-1717. https://doi.org/10.1016/j.jbiomech.2016.03.057.
Symons, J., D. Fyhrie, D. Hawkins, S. Upadhyaya, and S. Stover. 2015. Modeling equine race surface vertical mechanical behaviors in musculoskeletal modeling environment. J. Biomechanics 48(4):566-572. https://doi.org/10.1016/j.jbiomech.2015.01.006.
Arnold, B. J., S. K. Upadhyaya, W. W. Wallender, and M. E. Grismer. 2014. Sensor-based cutoff strategy for boarder check-irrigated fields. J. Irr. and Drainage Eng.
Arnold, B. J., S. K. Upadhyaya, J. Roach, P. S. Kanannavar, and D. H. Putnam. 2014. Water advance model and sensor system can reduce tail runoff in irrigated alfalfa fields. California Agriculture. 68(3):82-88.
Kostlan, K. J. and S. K. Upadhyaya. 2014. Virtual soil tests for determination of particle properties for use in DEM models from measurable bulk properties. Trans. ASABE. 57(5):1329-1338.
Dhillon, R., F. Rojo, J. Roach, S. Upadhyaya and M. Delwiche. 2014. A continuous leaf monitoring system for precision irrigation management in orchard crops. J. Agr. Machinery Sci. 10(4):267-272.
Dhillon, R., V. Udompetaikul, F. Rojo, J. Roach, S. Upadhyaya, D. Slaughter, B. Lampinen, and K. Shackel. 2014. Detection of plant water stress using leaf temperature and microclimatic measurements in almond, walnut, and grape crops. Trans. ASABE. 57(1):297-304.
Yu, C., P. Thy, L. Wang, S. N. Anderson, J. S. VanderGheynst, S. K. Upadhyaya, and B. M. Jenkins. 2014. Influence of leaching pretreatment on fuel properties of biomass. Fuel Processing Technology. 128:43-53.
Patil, V. C., K. A. Al-Gaadi, R. Mudugundu, E. H. M. Tola, S. A. Marey, A. M. Al-Omran, R. Khosla, S. K. Upadhyaya, D. J. Mulla, and A. Al-Dosari. 2014. Delineation of management zones and response of spring wheat (Triticum aestivum L.) to irrigation and nutrient levels in Saudi Arabia. Int. J. Agr. Bio. 16:104-110.
Udompetaikul, V., R. W. Coates, S. K. Upadhyaya, G. T. Browne, M. Shafii, and M. Gillis. 2013. Tractor-mounted, GPS-based spot fumigation system manages Prunus replant disease. California Agriculture. 67(4):222-227.
Browne, G. T., B. D. Lampinen, B. A. Holtz, S. K. Upadhyaya, L. S. Schmidt, R. G. Bhat, V. Udompetaikul, R. Coates, B. D. Hanson, K. M. Klonsky, S. Gao, D. Wang, M. Gillis, J. S. Gerik and R. S. Johnson. 2013. Managing the almond and stone fruit replant disease complex with less soil fumigant. California Agriculture. 67(3):128-138.
Setterbo, J. J., P. B. Fyhire, M. Hubbard, S. K. Upadhyaya, and S. M. Stover. 2013. Dynamic properties of a dirt and a synthetic equine racetrack surface measured by a track-testing device. Equine Veterinary Journal. 45:25-30.
Perez-Ruiz, M. and S. K. Upadhyaya. 2012. GNSS in precision agricultural operations. Chapter 1. InTech. Open Access Chapter. http://dx.doi.org/10.5772/50448.
Hong, M. Y., U. A. Rosa, and S. K. Upadhyaya. 2012. Optimum operating parameters for a rotary drum shaker for harvesting Jatropha Curcas L. Trans ASABE. 55(6):2051-2058.