|Dr. Kendall DeJonge
PHONE: (970) 492-7417
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.
-Garrett Banks (2015-present), Engineering Technician
-Horacio Garza (2015-present), Shop Manager
-Ross Steward (2016-present), Engineering Aide
-Katie Ascough (2018-present), Engineering Aide
|Ph.D.||Civil and Environmental Engineering (Irrigation and Drainage)||2011||Colorado State University, Fort Collins, CO|
|M.S.||Agricultural Engineering (Water Resources)||2006||Iowa State University, Ames, IA|
|B.S.||Agricultural Engineering (Power and Machinery)||2003||Iowa State University, Ames, IA|
DeJonge, K.C., H. Zhang, S.M. Gleason. (Accepted February 9, 2019). Simple background subtraction of thermal imagery for canopy temperature measurement in greenhouse. Applied Engineering in Agriculture.
Gleason, S.M., M. Cooper, D.R. Wiggans, C.A. Bliss, M.C. Romay, M.A. Gore, M.V. Mickelbart, C.N. Topp, H. Zhang, C. DeJonge, L.H. Comas. (Accepted February 1, 2019). Stomatal conductance, xylem water transport, and root traits underpin improved performance under drought and well-watered conditions across a diverse panel of maize inbred lines. Field Crops Research.
Varzi, M.M., T.J. Trout, C. DeJonge, R. Oad. 2019. Optimal water allocation under deficit irrigation in the context of Colorado Water Law. ASCE Journal of Irrigation and Drainage Engineering. In Press.
Comas, L.H., T.J. Trout, C. DeJonge, H. Zhang, S.M. Gleason. 2019. Water productivity under strategic growth stage-based deficit irrigation in maize. Agricultural Water Management, 212: 433-440. DOI 10.1016/j.agwat.2018.07.015
Comas, L.H., T.J. Trout, G. Banks, H. Zhang, C. DeJonge, S.M. Gleason. 2018. USDA-ARS Colorado maize growth and development, yield and water-use under strategic timing of irrigation, 2012-2013. Data in Brief, 21: 1227-1231. DOI 10.1016/j.dib.2018.10.140
Han, M., H. Zhang, J. L. Chávez, L. Ma, C. DeJonge. 2018. Improved soil water deficit estimation through the integration of canopy temperature measurements into a soil water balance model. Irrigation Science, 36(3): 187-201. DOI 10.1007/s00271-018-0574-z
Trout, T.J., C. DeJonge. 2018. Crop water use and crop coefficients of maize in the US Great Plains. ASCE Journal of Irrigation and Drainage Engineering, 144(6). DOI 10.1061/(ASCE)IR.1943-4774.0001309
Han, M., H. Zhang, C. DeJonge, L.H. Comas, S.M. Gleason. 2018. Comparison of three crop water stress index models with sap flow measurements in maize. Agricultural Water Management, 203: 366-375. DOI 10.1016/j.agwat.2018.02.030
Kisekka, I., C. DeJonge, L. Ma, J. Paz, K. Douglas-Mankin. 2017. Crop modeling applications in agricultural water management. Transactions of the ASABE, 60(6): 1959-1964. DOI 10.13031/trans.12693
Fang, Q.X., L. Ma, T.J. Trout, L.H. Comas, C. DeJonge, L.R. Ahuja, L.A. Sherrod, R.W. Malone. 2017. Modeling crop N concentration and uptake for new maize hybrid under growth stage-based deficit irrigations. Transactions of the ASABE, 60(6): 2067-2081. DOI 10.13031/trans.12405
DeJonge, K.C., K.R. Thorp. 2017. Implementation of standardized reference evapotranspiration and dual crop coefficient approach in the DSSAT Cropping System Model. Transactions of the ASABE, 60(6): 1965-1981. DOI 10.13031/trans.12321
Carroll, D.A. III, N.C. Hansen, B.G. Hopkins, C. DeJonge. 2017. Water stress indices of maize with controlled deficit irrigation and variable nitrogen supply. Irrigation Science. DOI 10.1007/s00271-017-0558-4
Liang, H., Z. Qi, C. DeJonge, K. Hu, B. Li. 2017. Global sensitivity and uncertainty analysis of nitrate leaching and crop yield simulation under different water and nitrogen management practices. Computers and Electronics in Agriculture. 142: 201-210. DOI 10.1016/j.compag.2017.09.010
Trout, T.J., C. DeJonge. 2017. Water productivity of maize in the U.S. High Plains. Irrigation Science. 35(3): 251-266. DOI 10.1007/s00271-017-0540-1.
Gleason, S.M., D.R. Wiggans, C.A. Bliss, L.H. Comas, M.S. Cooper, C. DeJonge, J.S. Young, H. Zhang. 2017. Coordinated decline in electron transport, PEP carboxylase activity, and maximal net CO2 assimilation with loss of hydraulic conductance during water stress in Zea mays. Flora. 227: 1-9. DOI 10.1016/j.flora.2016.11.017
Kullberg, E.G., C. DeJonge, J.L. Chávez. 2017. Evaluation of thermal remote sensing indices to estimate crop evapotranspiration coefficients. Agricultural Water Management. 179: 64-73. DOI 10.1016/j.agwat.2016.07.007
Han, M., H. Zhang, C. DeJonge, L. Comas, T.J. Trout. 2016. Estimating maize water stress by standard deviation of canopy temperature in thermal imagery. Agricultural Water Management. 177: 400-409. DOI 10.1016/j.agwat.2016.08.031
DeJonge, K.C., S. Mefford, J.L. Chávez. 2016. Assessing corn water stress using spectral reflectance. International Journal of Remote Sensing. 37(10): 2294-2312. DOI 10.1080/01431161.2016.1171929
Mkhwanazi, M., J.L. Chávez, A.A. Andales, C. DeJonge. 2015. SEBAL-A: A remote sensing ET algorithm that accounts for advection with limited data. Part II: Test for transferability. Remote Sensing. 7(11): 15068-15081. DOI 10.3390/rs71115068
DeJonge, K.C., S. Taghvaeian, T.J. Trout, and L.H. Comas. 2015. Comparison of canopy temperature-based water stress indices for maize. Agricultural Water Management, 156: 51-62. DOI 10.1016/j.agwat.2015.03.023
DeJonge, K.C., M. Ahmadi, J.C. Ascough II, and K.D. Kinzli. 2015. Sensitivity analysis of reference evapotranspiration to sensor accuracy. Computers and Electronics in Agriculture.110: 176-186. DOI 10.1016/j.compag.2014.11.013
Kinzli, K.D., D. Gensler, C. DeJonge, R. Oad, and N. Shafike. 2014. Validation of a decision support system for improving irrigation system performance. Journal of Irrigation and Drainage Engineering. DOI 10.1061/(ASCE)IR.1943-4774.0000829
Taghvaeian, S., L.H. Comas, C. DeJonge, and T.J. Trout. 2014. Conventional and simplified canopy temperature indices predict water stress in sunflower. Agricultural Water Management. 144: 69-80. DOI 10.1016/j.agwat.2014.06.003
Ahmadi, M., J.C. Ascough II, K.C. DeJonge, and M. Arabi. 2014. Multisite-multivariable sensitivity analysis of distributed watershed models: enhancing the perceptions from computationally frugal methods. Ecological Modelling. 279: 54-67. DOI 10.1016/j.ecolmodel.2014.02.013
McMaster, G.S., J.C. Ascough II, D.A. Edmunds, L.E. Wagner, F.A. Fox, K.C. DeJonge, and N.C. Hansen. 2014. Simulating unstressed crop development and growth using the Unified Plant Growth Model (UPGM). Environmental Modeling and Assessment. 19:407-424. DOI 10.1007/s10666-014-9402-x
Taghvaeian, S., J.L. Chávez, W.C. Bausch, K.C. DeJonge, and T.J. Trout. 2014. Minimizing instrumentation requirement for estimating crop water stress index and transpiration of maize. Irrigation Science. 32(1):53-65. DOI 10.1007/s00271-013-0415-z
DeJonge, K.C., J.C. Ascough II, A.A. Andales, N.C. Hansen, L.A. Garcia, and M. Arabi. 2012. Improving evapotranspiration simulations in the CERES-Maize model under limited irrigation. Agricultural Water Management. 115: 92-103. DOI 10.1016/j.agwat.2012.08.013
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. DOI 10.1016/j.ecolmodel.2012.01.024
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. DOI 10.13031/2013.36451
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. DOI 10.1016/j.agsy.2010.06.005
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. DOI 10.1016/j.compag.2008.05.022
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. DOI 10.13031/2013.23605
DeJonge, K.C., 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. DOI 10.1016/j.agwat.2007.05.008
-Caitlin Condon (2013), Ph.D. student at Oregon State University in Radiation Health Physics.
-Brenna Mefford (2011-2014), Water Resources Engineer, Colorado Water Conservation Board.
-Keith Wakefield (2012-2014), Flood Recovery EIT for Colorado DOT.
-Kayla Moden (2014), Geotechnical Engineer at Golder Associates, M.S. student at CSU.
-Cory Arnold (2014-2015), United States Air Force.
-Bailey Kraich (2014-2015), Field Engineer for Entact, LLC.
-KaMele Sanchez (2016), CSU undergraduate in Natural Resources.
-Ben Choat (2015-2016), M.S. student at CSU in Environmental Engineering.
-Liam Cummins (2011-2017), State of Colorado Lead Water Commissioner, Div. 1, Dist. 8.
-Michelle Ondrejka (2017), CSU undergraduate in Civil Engineering
-Tyler Gilkerson (2017-2018), Hydrogeology Specialist at Colorado State University
-Gerald Buchleiter (2015-2018), Retired (former Farm Manager).
Cory Arnold (2014-2015), United States Air Force
Bailey Kraich (2014-2015), CSU undergraduate in Environmental Engineering
Brenna Mefford (2011-2014), currently Interstate Streams Engineer for State of Wyoming.
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.
Caitlin Condon (2013), currently M.S. student at Oregon State University in Radiation Health Physics.