My current research focus is evaluating crop growth and yield response to regulated deficit irrigation. Specifically my research covers many areas, including quantification and estimation of evapotranspiration, deficit irrigation management and water balance, infrared thermometry and canopy temperature measurement methods, and other ground-based remote sensing methods. I also have expertise in hydrologic and crop modeling, as well as numerical sensitivity analysis methods. I grew up on an irrigated farm in south-central Nebraska and enjoy the opportunity to use my skills to develop methods to help farmers.
B.S., Mefford,DeJonge, K.C., J.L. Chávez. (Submitted February 2015). Assessing corn water stress using spectral reflectance. Submitted to International Journal of Remote Sensing
DeJonge, K.C.,S. Taghvaeian, T.J. Trout, L.H. Comas. 2015. Comparison of canopy temperature-based water stress indices for maize. Agricultural Water Management.156: 51-62.
DeJonge, K.C., M. Ahmadi, J.C. Ascough II, K.D. Kinzli. 2015. Sensitivity analysis of reference evapotranspiration to sensor accuracy. Computers and Electronics in Agriculture 110: 176–186.
Kinzli, K.D., D. Gensler, K.C. DeJonge , R. Oad, N. Shafike. 2014. Validation of a decision support system for improving irrigation system performance. Journal of Irrigation and Drainage Engineering. 04014067.
Taghvaeian, S., L.H. Comas, K.C. DeJonge, T.J. Trout. 2014. Conventional and simplified canopy temperature indices predict water stress in sunflower. Agricultural Water Management. 144: 69-80.
Ahmadi, M., J.C. Ascough II, K.C. DeJonge , M. Arabi. 2014. Multisite-multivariable sensitivity analysis of distributed watershed models: enhancing the perceptions from computationally frugal methods. Ecological Modelling. 279: 54-67.
McMaster, G.S., J.C. Ascough II, D.A. Edmunds, L.E. Wagner, F.A. Fox, K.C. DeJonge , N.C. Hansen. 2014. Simulating unstressed crop development and growth using the Unified Plant Growth Model(UPGM). Environmental Modeling and Assessment. p.1-18.
Taghvaeian, S., J.L. Chávez, W.C. Bausch, K.C. DeJonge , T.J. Trout. 2014. Minimizing instrumentation requirement for estimating crop water stress index and transpiration of maize. Irrigation Science. 32(1):53-65.
DeJonge K.C., J.C. Ascough II, A.A. Andales, N.C. Hansen, L.A. Garcia, M. Arabi. 2012. Improving evapotranspiration simulations in the CERES-Maize model under limited irrigation. Agricultural Water Management. 115: 92-103.
DeJonge K.C., J.C. Ascough II, M. Ahmadi, A.A. Andales, and M. Arabi. 2012. Global sensitivity analysis of a dynamic agroecosystem model under different irrigation treatments. Ecological Modelling. 231: 113-125.
DeJonge K.C., A.A. Andales, J.C. Ascough II, and N.C. Hansen. 2011. Modeling of full and limited irrigation scenarios for corn in a semiarid environment. Transactions of the ASABE. 54(2): 481-492.
Ascough II, J.C., A.A. Andales, L.A. Sherrod, G.S. McMaster, N.C. Hansen, K.C. DeJonge , E.M. Fathelrahman, L.R. Ahuja, G.A. Peterson, and D.L. Hoag. 2009. Simulating landscape catena effects in no-till dryland agroecosystems using GPFARM. Agricultural Systems. 103(8): 569-584.
Thorp, K.R., K.C. DeJonge , A.L. Kaleita, W. D. Batchelor, and J.O. Paz. 2008. Methodology for the use of DSSAT models for precision agriculture decision support. Computers and Electronics in Agriculture. 64(2): 276-285.
Thorp, K.R., W.D. Batchelor, J.O. Paz, A.L. Kaleita, and K.C. DeJonge . 2007. Using cross validation to evaluate CERES-Maize yield simulations within a decision support system for precision agriculture. Transactions of the ASABE. 50(4): 1467-1479.
K. C. DeJonge, A. L. Kaleita, and K. R. Thorp. 2007. Simulating the effects of spatially variable irrigation on corn yields, costs, and revenue in Iowa. Agricultural Water Management. 92(1-2): 99-109.
Brenna Mefford (2011-2014), currently Interstate Streams Engineer for State of Wyoming.
Caitlin Condon (2013), currently M.S. student at Oregon State University in Radiation Health Physics.
Keith Wakefield (2012-2014), currently Flood Recovery Engineer in Training for Colorado Department of Transportation.
Kayla Moden (2014), CSU undergraduate in Environmental Engineering, and working for CSU Geotechnical Laboratory.