 |
Suat Irmak |
| Associate
Professor of Biological Systems Engineering Soil and Water Resources Engineering Microclimate-surface interactions |
|
Office:
241 L. W. Chase Hall email: sirmak2@unl.edu |
PUBLICATIONS |
Journal
Articles |
REFEREED JOURNAL ARTICLES |
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| 2009 | Lagos, O., D.L. Martin, S. Verma, A. Suyker, and S. Irmak. 2009. Surface energy balance model of transpiration from variable canopy cover and evaporation from residue-covered or bare soil systems. Irrigation Science 28:51-64. |
| Ortega-Farias, S., S. Irmak, and R.H. Cuenca. 2009. Special issue on evapotranspiration measurement and modeling. Irrigation Science 28:1-3. | |
| Irmak, S., and D. Mutiibwa. 2009. On the dynamics of evaporative losses from Penman-Monteith with fixed and variable canopy resistance during partial and complete canopy. Transactions of the ASABE 52(4):1139-1153. | |
| Irmak, S., and L.O. Odhiambo. 2009. Impact of microclimatic data measured above maize and grass canopies on Penman-Monteith reference evapotranspiration calculations. Transactions of the ASABE 52(4):1155-1169. | |
| Hay, C.H., and S. Irmak. 2009. Actual and reference evaporative losses and surface coefficients of a maize field during non-growing (dormant) periods. Journal of Irrigation and Drainage Engineering 135(3):313-322. | |
| Payero, J.O., D.D. Tarkalson, S. Irmak, D. Davison, and J. Petersen. 2009. Effect of irrigation timing of a deficient water allocation on corn evapotranspiration, yield, water use efficiency, and dry matter production in a semi-arid climate. Agricultural Water Management 96:1387-1397. | |
| 2008 | Irmak, S., and D. Mutiibwa. 2008. Dynamics of photosynthetic photon flux density and light extinction coefficient for assessing radiant energy interactions for maize canopy. Transactions of the ASABE 51(5):1663-1673. |
| Irmak, S., D. Mutiibwa, A. Irmak, T.J. Arkebauer, A. Weiss, D.L. Martin, and D.E. Eisenhauer. 2008. On the scaling up leaf stomatal resistance to canopy resistance using photosynthetic photon flux density. Agricultural and Forest Meteorology 148:1034-1044. | |
| Irmak, A., S. Irmak, and D.L. Martin. 2008. Reference and crop evapotranspiration in south central Nebraska: I. Comparison and analysis of grass and alfalfa-reference evapotranspiration. J. Irrig. and Drain. Eng., ASCE 134(6):690-699. | |
| Irmak, A., and S. Irmak. 2008. Reference and crop evapotranspiration in south central Nebraska: II. Measurement and estimation of actual evapotranspiration. J. Irrig. and Drain. Eng., ASCE 134(6):700-715. | |
| Irmak, S., A. Irmak, T.A. Howell, D.L. Martin, J.O. Payero, and K.S. Copeland. 2008. Variability of alfalfa-reference to grass-reference evapotranspiration ratios in growing and dormant seasons. J. Irrig. and Drain. Eng., ASCE 134(2):147-159. | |
| Irmak, S., E. Istanbulluoglu, and A. Irmak. 2008. An evaluation of evapotranspiration model complexity versus performance in comparison with Bowen ratio energy balance measurements. Transactions of the ASABE 51(4):1295-1310. | |
| Singh, R.K., A. Irmak, S. Irmak and D.L. Martin. 2008. Application of SEBAL for mapping evapotranspiration and estimating surface energy fluxes in south central Nebraska. J. Irrig. and Drain. Eng., ASCE 134(3):273-285. | |
Payero, J.O., D.D. Tarkalson, and S. Irmak, D. Davison, and J.L. Petersen. 2008. Effect of irrigation amounts applied with subsurface drip irrigation on crop evapotranspiration, yield, water use efficiency, and dry matter production in a semi-arid climate. Agricultural Water Management 95:895-908. |
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| 2007 | Payero, J.O. and S. Irmak. 2007. Design, construction, installation, and performance of two large repacked weighing lysimeters for measuring crop evapotranspiration. Irrigation Science 26(2):191-202. |
| 2006 | Irmak, A., J.W. Jones, W.D. Batchelor, S. Irmak, K.J. Boote, and J.O. Paz. 2006. Artificial neural network model as a data analysis tool in precision farming. Transactions of the ASABE 49(6):2027-2037. |
| Irmak, A., J.W. Jones, W.D. Batchelor, S. Irmak, J.O. Paz, and K.J. Boote. 2006. Analysis of spatial yield variability using a combined crop model-empirical approach. Transactions of the ASABE 49(3):811-818. | |
| Irmak, S., J.O. Payero, D.L. Martin, A. Irmak, and T.A. Howell. 2006. Sensitivity analyses and sensitivity coefficients of the standardized ASCE-Penman-Monteith equation to climate variables. Journal of Irrigation and Drainage Engineering 132(6):564-578. | |
| Payero, J.O. and S. Irmak. 2006. Variable upper and lower crop water stress index (CWSI) baselines for corn and soybean. Irrigation Science 25:21-32. | |
| Payero, J.O., D.D. Tarkalson, and S. Irmak. 2006. Use of Time-Domain Reflectometry for continuous monitoring of nitrate in soil and water. Applied Engineering in Agriculture 22(5):689-700. | |
| Xinhua, J., M.D. Dukes, J.M. Jacobs, and S. Irmak. 2006. Large scale weighing lysimeters for evapotranspiration research in humid environment. Transactions of the ASABE 49(2):401-412. | |
| Payero, J.O., S.R. Melvin, S. Irmak, and D. Tarkalson. 2006. Yield response of corn to deficit irrigation in a semi-arid environment. Agricultural Water Management. 84:101-112. UNL-ARD Journal Series No. 14687. | |
| 2005 | Payero, J.O., S.R. Melvin, and S. Irmak. 2005. Response of soybean to deficit irrigation in a semi-arid region. Transactions of the ASAE. 48(6):2189-2203. UNL-ARD Journal Series No. 14637. |
| Irmak, S. and A. Irmak. 2005. Performance of Frequency-Domain, Capacitance, and Psuedo-Transit Time-Based Soil Water Content Probes in Four Coarse-Textured Soils. Applied Engineering in Agriculture, ASAE. 21(6):999-1008. UNL-ARD Journal Series No. 14993. | |
| Irmak, S., and R.G. Allen. 2005. Closure on predicting daily net radiation using minimum climatological data. J. Irrig. and Drain. Eng., ASCE 131(4):389-390. | |
| Irmak, S., T.A. Howell, R.G. Allen, J.O. Payero, and D.L. Martin. 2005. Standardized ASCE-Penman-Monteith: Impact of sum-of-hourly vs. 24-hr-timestep computations at reference weather station sites. Transactions of the ASAE 48(3):1063-1077. UNL-ARD Journal Series No. 14850. | |
| Irmak, S., D.Z. Haman, A. Irmak, J.W. Jones, B. Tonkinson, D. Burch, T.H. Yeager, and C. Larsen. 2005. Root-zone temperatures of V. odoratissimum grown in the MPBS and Conventional Systems: Measurement and analyses of temperature profiles and predicting root-zone temperatures. J. Amer. Soc. Hort. Sci. 40(3):808-818. UNL-ARD Journal Series No. 14851. | |
| Irmak, S. 2005. Crop evapotranspiration and crop coefficients of Viburnum Odoratissimum (Ker-gawl). Applied Engineering in Agriculture, ASAE 21(3):1-11. | |
| Irmak, S., M.D. Dukes, and J.M. Jacobs. 2005. Using modified Bellani plate evaporation gauges to estimate short canopy reference evapotranspiration. J. Irrig. and Drain. Eng., ASCE 131(2):164-175. UNL-ARD Journal Series No. 14609. | |
| 2004 | Satti, S.R., J.M. Jacobs, and S. Irmak. 2004. Agricultural water management in a humid region: sensitivity to climate, soil and crop parameters. Agric. Water Management 70:51-65. |
| Irmak, S., D. Z. Haman, A. Irmak, J. W. Jones, K.L. Campbell, and T. L. Crisman. 2004. Measurement and analyses of growth and stress parameters of Viburnum Odoratissimum (Ker-gawl) grown in MPBS. J. Amer. Soc. Hort Sci. 39(6):1445-1455. | |
| 2003 | Irmak, S. D. Z. Haman, A. Irmak, J. W. Jones, T. H. Yeager, and K. L. Campbell. 2003. New irrigation-plant production system for water conservation in ornamental nurseries: Quantification and evaluation of irrigation, runoff, plant biomass, and irrigation efficiencies. Applied Engineering in Agriculture, ASAE 19(6):651-655. |
| Irmak, S., R.G. Allen, and E.B. Whitty. 2003. Daily grass and alfalfa-reference evapotranspiration estimates and alfalfa-to-grass evapotranspiration ratios in Florida. Journal of Irrigation and Drainage Engineering, ASCE 129(5):360-370. | |
| Irmak, S., A. Irmak, J.W. Jones. T.A. Howell, J.M. Jacobs, R.G. Allen, and G. Hoogenbom. 2003. Predicting daily net radiation using minimum climatological data. Journal of Irrigation and Drainage Engineering, ASCE 129(4):256-269. | |
| Irmak, S., A. Irmak, R.G. Allen, and J.W. Jones. 2003. Solar and net radiation-based equations to estimate reference evapotranspiration in humid climates. Journal of Irrigation and Drainage Engineering, ASCE 129(5):336-347. | |
| Irmak, S., A. Irmak, and J.W. Jones. 2003. Predicting multiple layers of bare soil temperatures: A model evaluation and modifications for sandy soils. Soil and Crop Science Society of Florida 62:20-29. | |
| Irmak, S., and D.Z. Haman. 2003. Evaluation of five methods for estimating Class "A" pan evaporation in a humid climate. HortTechnology 13(3):500-508. | |
| 2002 | Irmak, S., D.Z. Haman, and J.W. Jones. 2002. Evaluation of Class "A" pan coefficients for estimating reference evapotranspiration in a humid location. Journal of Irrigation and Drainage Engineering, ASCE 128(3):153-159. |
| Irmak, A., W.D. Batchelor, J.W. Jones, S. Irmak, J.O. Paz, H. Beck, and M. Engel. 2002. Relationship between plant available soil water and yield for explaining soybean yield variability. Applied Engineering in Agriculture, ASAE, 18(4):471-482. | |
| 2001 | Irmak, S., D.Z. Haman, and T.H. Yeager. 2001. Seasonal irrigation water use efficiency of MPBS. Journal of Environmental Horticulture 19(1):4-10. |
| Irmak, S., and D.Z. Haman. 2001. Performance of the Watermark Granular Matrix Sensor in sandy soils. Applied Engineering in Agriculture, ASAE 17(6):787-795. | |
| Irmak, S., D.Z. Haman, and A. Irmak. 2001. Dew point hygrometers for irrigation scheduling in fine-textured soils. Applied Engineering in Agriculture, ASAE 17(1):17-25. | |
| 2000 | Irmak, S., D.Z. Haman, and R. Bastug. 2000. Determination of crop water stress index for irrigation timing and yield estimation of corn. Agronomy Journal 92(6):1221-1227. |
| 1996 | Bastug, R. and S. Irmak. 1996. Using soil matric potential and crop water stress index for irrigation management. Mediterranean University, Journal of Agriculture (9):241-255, Antalya, Turkey. |
| 1995 | Bastug, R. and S. Irmak. 1995. Measuring leaf water potential using thermocouple hygrometers and psychrometers. Mediterranean University, Journal of Agriculture (8):383-394. Antalya, Turkey. |
| Hakgoren, F., A. Irmak, and S. Irmak. 1995. Cooling of greenhouses. Mediterranean University, Journal of Agriculture (8):238-252. Antalya, Turkey. | |
| REFEREED PROFESSIONAL SOCIETY CONFERENCE PROCEEDINGS | |
| 2009 | Torrion, J., T.D. Setiyono, J.E. Specht, K.G. Cassman, R.B. Ferguson, D.T. Walters and S. Irmak. Predicting soybean root growth by water depletion in the soil profile (abstract). Presented at the 2009 ASA Annual Conference, New Orleans, LA, October 17-21, 2009. |
| Hay, C.H., and S. Irmak. 2009. Bayesian model averaging for accounting for model selection uncertainty with an application for predicting net radiation. ASABE paper No. 09-. 2009 ASABE Annual International Meeting, Grand Sierra Resort and Casino, Reno, Nevada, June 21-24, 2009. | |
| Hay, C.H., and S. Irmak. 2009. Recursive and explicit combination methods for calculating reference evapotranspiration. Proc. of the 2009 World Environmental and Water Resources Congress. Kansas City, Kansas, May 12-16, 2009. | |
| 2008 | Shock, C., S. Irmak, B. Sanden, L. Lima, and K. Taylor. 2008. Grower adoption of Granular Matrix Sensors. American Society of Agronomy International Meeting. Soil and Water Management and Conservation Division. Houston, Texas. Technical abstract (Abstract ID#: 45774), October 5-9, 2008. |
| van Donk, S., D.L. Martin, S. Irmak, S. Melvin, and J. Petersen. 2008. Effect of crop residue on soil water content and yield of sprinkler-irrigated corn. ASABE Paper No. 08-4724. 2008 ASABE Annual International Meeting, Providence, Rhode Island, June 29-july2, 2008. | |
| Hay, C.H., and S. Irmak. 2008. Surface energy balance and surface coefficients of a corn field during non-growing periods. Proc. of the 2008 World Environmental and Water Resources Congress. Honolulu, Hawaii, May 12-16, 2008. | |
| 2007 | Irmak, S., D. Mutiibwa, A. Irmak, T.J. Arkebauer, A. Weiss, D.L. Martin, and D.E. Eisenhauer. 2007. Scaling up of leaf stomatal resistance to canopy resistance. ASABE Paper No. 07-2297. 2007 ASABE Annual International Meeting, Minneapolis, Minnesota, June 17-20, 2007. |
| Lagos, L.O., D.L. Martin, S. Irmak, and X. Zhou. 2007. Evaluating evapotranspiration with SWAT, a distributed watershed model, and the FAO56 Penman-Monteith method. ASABE Paper No. 07-2294. 2007 ASABE Annual International Meeting, Minneapolis, Minnesota, June 17-20, 2007. | |
| Yang, H., K. Cassman, S. Irmak, and D. Walters. 2007. Corn water use efficiency with deficit irrigation in high-yielding settings. Proc. of the 2007 ASA Annual International Meeting. New Orleans, Louisiana, November 4-8, 2007. | |
| Irmak, S., G.L. Zoubek, J.M. Rees, and B.S. Van DeWalle. 2007. Nebraska Agricultural Water Management Demonstration Network. Proc. of the NACAA AM/PIC Conference. Grand Rapids, Michigan. | |
| Singh, R.K., A. Irmak, S. Irmak, and D.L. Martin. 2007. The satellite-remote sensing based estimation of land surface evapotranspiration in Great Plains. Proc. of the ASCE-EWRI Word Environmental Water Resources Congress. Tampa, Florida. May 15-19, 2007. | |
| 2006 | Ferguson, R.B. and S. Irmak. 2006. In-season nitrogen management for subsurface drip-irrigated corn in south central Nebraska. 36th North Central Extension-Industry Soil Fertility Conference. Des Moines, Iowa, November 7-8, 2006. |
| Payero, J.O., D. Tarkalson, and S. Irmak. 2006. Yield Response of Corn to Timing of a Limited Seasonal Irrigation Depth (150 mm) with Subsurface Drip Irrigation. Proceedings of the ASCE-EWRI World Environmental and Water Resources Congress. Qwest Center, Omaha, Nebraska, May 21-25, 2006. | |
| Payero, J.O., D. Tarkalson, and S. Irmak. 2006. Corn Yield Response to Different Irrigation Depths with Subsurface Drip Irrigation. Proceedings of the ASCE-EWRI World Environmental and Water Resources Congress. Qwest Center, Omaha, Nebraska, May 21-25, 2006. | |
| 2004 | Dukes, M.D., S. Irmak, and J.M. Jacobs. 2004. An Automatic System for Recording Evaporation from ET Gages. ASAE Annual International Meeting, Fairmont Chateau Laurier, The Westin, Government Centre Ottawa, Ontario, Canada. ASAE Paper No. 042191. St. Joseph, MI, August 1-4, 2004. |
| 2001 | Irmak, S., and D.Z. Haman. 2001. Simplified forms of the FAO56-Penman-Monteith equation for humid climates. ASAE Paper No. 01-2096. Amer. Soc. Agric. Engr., St. Joseph, MI. |
| 2000 | Irmak, S., and D.Z. Haman. 2000. Performance of the Watermark Granular Matrix Sensor in sandy soils. ASAE Paper No. 00-2037. Amer. Soc. Agric. Engr., St. Joseph, MI. |
| 1999 | Irmak, S., D.Z. Haman, A.G. Smajstrla, and R. Bastug. 1999. Measurement of soil water potential using soil hygrometer for irrigation timing of corn. ASAE Paper No. 99-2236. St. Joseph, MI. |
| Haman, D.Z., T.H. Yeager, and S. Irmak. 1999. Multi-Pot Box System for increased efficiency of irrigation in ornamental plant production. The Irrigation Association Conference, p. 223-228. Orlando, FL | |
| Irmak, A., J.W. Jones, C.D. Stanley, J.W. Hansen, S. Irmak, and K.J. Boote. 1999. Some effects of an antitranspirant (Vapor Gard) on tomato growth and yield. Proceedings of the Soil and Crop Science Society of Florida 58:118-122. | |
BOOK CHAPTERS |
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| 2007 | Irmak, S. Evapotranspiration. 2008. In Encyclopedia of Ecology. Manuscript No. 270. Sven Erik Jorgensen and Brian D. Fath, (eds). Encyclopedia of Ecology, First Edition, Elsevier B.V., Oxford. Elsevier. pp. 1432-1439. Invited. |
EXTENSION and EDUCATIONAL PUBLICATIONS |
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| 2008 | Irmak, S., and W.R. Rathje. 2008. Plant growth and yield as affected by wet soil conditions due to flooding or over-irrigation. University of Nebraska-Lincoln Extension NebGuide G1904. |
| Kranz, W.L, S. Irmak, S. van Donk, C.D. Yonts, and D.L. Martin. 2008. Irrigation management for corn. University of Nebraska-Lincoln Extension NebGuide G1850. | |
| Yonts, C.D., S. Melvin, W.L. Kranz, D.L. Martin, and S. Irmak. 2008. Irrigation scheduling: Checkbook method. University of Nebraska-Lincoln Extension Circular 709. | |
| Kranz, W.L., D.L. Martin, S. Irmak, S. van Donk, and C.D. Yonts. 2008. Minimum center pivot design capacities in Nebraska. University of Nebraska-Lincoln Extension NebGuide G1851. | |
| 2007 | Irmak, S. 2007. Drip irrigation design and management considerations for windbreaks. University of Nebraska-Lincoln Extension NebGuide G1739. |
| Irmak, S., D.R. Hay, B.E. Anderson, W.L. Kranz, and C.D. Yonts. 2007. Irrigation management and crop characteristics of alfalfa. University of Nebraska-Lincoln Extension NebGuide G01778. | |
| Kranz, W.L., S. Irmak, D. L. Martin, and C.D. Yonts. 2007. Flow control devices for center pivot irrigation systems. University of Nebraska-Lincoln Extension NebGuide G888. | |
| Kranz, W.L., S. Irmak, D.L. Martin, and C.D. Yonts. 2007. Converting center pivot sprinkler packages. University of Nebraska-Lincoln Extension NebGuide G1124. | |
| 2006 | _______2006. Ten easy ways to boost profit $20/acre. University of Nebraska-Lincoln Extension Circular EC196. |
| Irmak, S., J.O. Payero, D.E. Eisenhauer, W.L. Kranz, D.L. Martin, G.L. Zoubek, J.M. Rees, B. VanDeWalle, A.P. Christiansen, and D. Leininger. 2006. Watermark granular matrix sensor to measure soil matric potential for irrigation management. University of Nebraska-Lincoln Extension Circular EC783. | |
| 2005 | Irmak, S., J.O. Payero, and D.L. Martin. 2005. Modified Atmometers (ETgage) for irrigation management. University of Nebraska Extension NebGuide, G05-1579. (Adobe Acrobat Reader required.) |
| Payero, J.O., C.D. Yonts, S. Irmak, and D.D. Tarkalson. 2005. Subsurface drip irrigation: Advantages and disadvantages. University of Nebraska-Lincoln Extension Circular EC776. | |
| 2003 | Irmak, S., and D.Z. Haman. 2003. Evapotranspiration: Potential or reference ? Institute of Food and Agricultural Sciences, IFAS, University of Florida. Extension Publication No: ABE343 (AE256). |
