Suat Irmak, Ph.D.; P.E.; Fellow AAAS; Fellow ASABE; Fellow ASCE-EWRI

Sunflower germplasms’ response to different water and salinity stress levels in greenhouse and field conditions under subsurface drip irrigation
Irrigation and Drainage, Saylak, Sevgi, Irmak, Suat, Eskridge, Kent M., Dweikat, Ismail, 2025

SYSTEMS-LEVEL RESPONSE OF CROP NITROGEN REMOVAL TO NITROGEN INPUTS IN U.S. AGRICULTURE
Journal of the ASABE, Kumanan, Varshini, Kukal, Meetpal, Cibin, Raj, Irmak, Suat, Van Meter, Kimberly, Dhillon, Jagmandeep, Dharni, Jaspinder S., 2025

Concurrent Response of Soybean to Fixed- (Full and Limited) and Variable-Rate Irrigation Management in Three Soil Types: I. Soil Water Dynamics
Irrigation and Drainage, Irmak, S., Hinn, T. A., Kukal, Meetpal, Mohammed, A. T., 2025

Sensitivity study of the Predictive Optimal Water and Energy Irrigation (POWEIr) controller's schedules for sustainable agriculture systems in resource-constrained contexts
Computers and Electronics in Agriculture, Sheline, Carolyn, Ingersoll, Samuel, Amrose, Susan, Irmak, Suat, Winter V., Amos G., 2024

Assessing water distribution and efficiency by coupled hydraulic-hydrological modeling for irrigation canal network
Paddy and Water Environment, Shin, Ji Hyeon, Nam, Won Ho, Jeon, Min Gi, Hong, Eun Mi, Zhang, Xiang, Sharma, Vivek, Irmak, Suat, Do, Jong Won, Kisekka, Isaya, 2024

Effect of center-pivot and subsurface drip irrigation systems on growth and evapotranspiration of volunteer corn in corn, soybean, and sorghum
Weed Science, Singh, Mandeep, Irmak, Suat, Kukal, Meetpal S., Kumar, Vipan, Lindquist, John L., Knezevic, Stevan Z., Pitla, Santosh, Jhala, Amit J., 2024

High-throughput physiological phenotyping of crop evapotranspiration at the plot scale
Field Crops Research, Bai, Geng (Frank), Barker, Burdette, Scoby, David, Irmak, Suat, Luck, Joe D., Neale, Christopher M.U., Schnable, James C., Awada, Tala, Kustas, William P., Ge, Yufeng, 2024

Comparison of the AquaCrop and CERES-Maize models for simulating maize phenology, grain yield, evapotranspiration and water productivity under different irrigation and nitrogen levels
Irrigation and Drainage, Amiri, Ebrahim, Irmak, Suat, Tari, Davood Barari, 2024

Maize response to different subsurface drip irrigation management strategies: Yield, production functions, basal and crop evapotranspiration
Agricultural Water Management, Irmak, Suat, 2024

Evaluation of CERES-Maize model for simulating maize phenology, grain yield, soil–water, evapotranspiration, and water productivity under different nitrogen levels and rainfed, limited, and full irrigation conditions
Irrigation Science, Irmak, Suat, Amiri, Ebrahim, Bazkiaee, P. Aalaee, Araji, H. Ahmadzadeh, 2024

Pollen-mediated gene flow from herbicide-resistant yellow corn to non-genetically engineered food-grade white corn
Crop Science, Singh, Mandeep, Kumar, Vipan, Knezevic, Stevan Z., Lindquist, John L., Irmak, Suat, Pitla, Santosh, Jhala, Amit J., 2024

Maize nitrogen uptake and use efficiency, partial factor productivity of nitrogen, and yield response to different nitrogen and water applications under three irrigation methods
Irrigation and Drainage, Irmak, Suat, Mohammed, Ali T., 2024

Soybean crop coefficients under different seeding rates and full and limited irrigation and rainfed management
Irrigation and Drainage, Irmak, Suat, Sandhu, Rupinder, 2024

Economics of deficit irrigation utilizing soil moisture probes in the western corn belt
Agricultural and Resource Economics Review, O'donnell, Emily, Nogueira, Lia, Walters, Cory G., Peterson, E. Wesley F., Irmak, Suat, 2023

Can limits of plant available water be inferred from soil moisture distributions?
Agricultural and Environmental Letters, Kukal, Meetpal S., Irmak, Suat, 2023

Interaction of quizalofop-p-ethyl with 2,4-D choline and/or glufosinate for control of volunteer corn in corn resistant to aryloxyphenoxypropionates
Weed Technology, Singh, Mandeep, Kumar, Vipan, Knezevic, Stevan Z., Irmak, Suat, Lindquist, John L., Pitla, Santosh, Jhala, Amit J., 2023

Disentangling day–night contributions toward altering atmospheric desiccation strength for US croplands
Journal of Production Agriculture, Kukal, Meetpal Singh, Irmak, Suat, 2023

Maize nitrogen uptake, grain nitrogen concentration and root-zone residual nitrate nitrogen response under center pivot, subsurface drip and surface (furrow) irrigation
Agricultural Water Management, Irmak, Suat, Mohammed, Ali T., Drudik, Matthew, 2023

Fractional coefficient for estimating physiologically meaningful and diurnal transpiration cycle weighted VPD from daily ambient environmental data
Agricultural and Forest Meteorology, Kukal, M. S., Irmak, S., 2023

Cover crop planting practices determine their performance in the U.S. Corn Belt
Journal of Production Agriculture, Koehler-Cole, Katja, Elmore, Roger W., Blanco-Canqui, Humberto, Francis, Charles A., Shapiro, Charles A., Proctor, Christopher A., Ruis, Sabrina J., Irmak, Suat, Heeren, Derek M., 2023

AGRICULTURE AND AGRICULTURAL WATER MANAGEMENT: HISTORICAL PERSPECTIVES AND INTEGRATION OF RESEARCH AND EXTENSION/OUTREACH FOR LARGE-SCALE TECHNOLOGY ADOPTION IN PRODUCTION FIELDS
Journal of the ASABE, Irmak, Suat, 2023

Drivers of enhanced evaporative demand in U.S. croplands: Determining relative contribution using constrained input scenarios
Journal of the American Water Resources Association, Kukal, M. S., Kukal, S., Irmak, S., Vellidis, G., 2023

Atmospheric dryness impacts on crop yields are buffered in soils with higher available water capacity
Geoderma, Kukal, M. S., Irmak, S., Dobos, R., Gupta, S., 2023

Evapotranspiration of Palmer amaranth (Amaranthus palmeri) in maize, soybean, and fallow under subsurface drip and center-pivot irrigation systems
Weed Science, Mausbach, Jasmine, Irmak, Suat, Kukal, Meetpal S., Karnik, Kelsey, Sarangi, Debalin, Jhala, Amit J., 2023

Modeling irrigation canal network flow for return flow on agricultural watershed using EPA-SWMM, Shin, Ji Hyeon, Nam, Won Ho, Irmak, Suat, Sharma, Vivek, Zhang, Xiang, 2023

Effect of degree of water stress on growth and fecundity of velvetleaf (Abutilon theophrasti) using soil moisture sensors
Weed Science, Mausbach, Jasmine, Irmak, Suat, Chahal, Parminder, Sarangi, Debalin, Jhala, Amit J., 2022

Effect of water stress on weed germination, growth characteristics, and seed production: a global meta-analysis
Weed Science, Singh, Mandeep, Thapa, Resham, Kukal, Meetpal Singh, Irmak, Suat, Mirsky, Steven, Jhala, Amit J., 2022

Automated real-time irrigation analytics inform diversity in regional irrigator behavior and water withdrawal and use characteristics
Agricultural Water Management, Irmak, Suat, Brar, Dilshad, Kukal, Meetpal S., Odhiambo, Lameck, Djaman, Koffi, 2022

Maize response to irrigation and nitrogen under center pivot, subsurface drip and furrow irrigation: Water productivity, basal evapotranspiration and yield response factors
Agricultural Water Management, Mohammed, Ali T., Irmak, Suat, 2022

Spatial Patterns and Magnitudes of Agriculturally Pertinent Climate Indicators across Agroecosystems in Türkiye
Journal of Applied Meteorology and Climatology, Irmak, Suat, Kukal, Meetpal S., Topcu, Sevilay, 2022

Modelling LEAF stomatal resistance for common REED, peach-leaf willow and cottonwood riparian plant communities
Hydrological Processes, Irmak, Suat, Kabenge, Isa, Woodward, Duane, Moravek, Milton, 2022

Alteration in surface energy balance fluxes induced from long-term disk-tilled versus no-till management in maize production
Soil and Tillage Research, Irmak, Suat, Kukal, Meetpal S., 2022

Effects of subsurface drip-irrigated soybean seeding rates on grain yield, evapotranspiration and water productivity under limited and full irrigation and rainfed conditions
Agricultural Water Management, Sandhu, Rupinder, Irmak, Suat, 2022

Maize response to coupled irrigation and nitrogen fertilization under center pivot, subsurface drip and surface (furrow) irrigation: Soil-water dynamics and crop evapotranspiration
Agricultural Water Management, Mohammed, Ali T., Irmak, Suat, 2022

Temporal Trends in Agriculturally Relevant Climate Indicators across Nine Agroecosystems of Turkey
Journal of Applied Meteorology and Climatology, Irmak, S., Kukal, M. S., 2022

Nocturnal transpiration in field crops: Implications for temporal aggregation and diurnal weighing of vapor pressure deficit
Agricultural Water Management, Kukal, Meetpal S., Irmak, Suat, 2022

Soil moisture heterogeneity and sensor deployment in uniformly managed field with unitextural soil
Journal of Production Agriculture, Irmak, Suat, Kukal, Meetpal S., Sharma, Kiran, 2022

Maize response to coupled irrigation and nitrogen fertilization under center pivot, subsurface drip and surface (furrow) irrigation: Growth, development and productivity
Agricultural Water Management, Irmak, Suat, Mohammed, Ali T., Kukal, Meetpal S., 2022

Soil Water Dynamics, Effective Rooting Zone, and Evapotranspiration of Sprinkler Irrigated Potato in a Sandy Loam Soil
Agronomy, Djaman, Koffi, Koudahe, Komlan, Saibou, Aminou, Darapuneni, Murali, Higgins, Charles, Irmak, Suat, 2022

Unmanned Aerial System-Based Data Ferrying over a Sensor Node Station Network in Maize
Sensors, Singh, Jasreman, Ge, Yufeng, Heeren, Derek M., Walter-Shea, Elizabeth, Neale, Christopher M.U., Irmak, Suat, Maguire, Mitchell S., 2022

Multi-model projections of trade-offs between irrigated and rainfed maize yields under changing climate and future emission scenarios
Agricultural Water Management, Irmak, S., Sandhu, R., Kukal, M. S., 2022

Leaf and canopy stomatal resistance, aerodynamic resistance, and evapotranspiration of irrigated continuous no-till and disk-till maize
Journal of Production Agriculture, Sharma, Vivek, Irmak, Suat, 2022

Performance of WOFOST Model for Simulating Maize Growth, Leaf Area Index, Biomass, Grain Yield, Yield Gap, and Soil Water under Irrigation and Rainfed Conditions
Journal of Irrigation and Drainage Engineering - ASCE, Amiri, Ebrahim, Irmak, Suat, Yaghouti, Hadis, 2022

Water Use Characteristics of Weeds: A Global Review, Best Practices, and Future Directions
Frontiers in Plant Science, Singh, Mandeep, Kukal, Meetpal Singh, Irmak, Suat, Jhala, Amit J., 2022

Assessment of CERES-Maize model in simulating maize growth, yield and soil water content under rainfed, limited and full irrigation
Agricultural Water Management, Amiri, E., Irmak, S., Araji, H. Ahmadzadeh, 2022

Planting date and plant density effects on maize growth, yield and water use efficiency
Environmental Challenges, Djaman, Koffi, Allen, Samuel, Djaman, Dorlote S., Koudahe, Komlan, Irmak, Suat, Puppala, Naveen, Darapuneni, Murali K., Angadi, Sangamesh V., 2022

Evaluation of irrigation scheduling and yield response for wheat cultivars using the AquaCrop model in an arid climate
Water Supply, Amiri, E., Bahrani, A., Irmak, S., Roshan, N. Mohammadiyan, 2022

Control of acetolactate synthase inhibitor/glyphosate-resistant Palmer amaranth (Amaranthus palmeri) in isoxaflutole/glufosinate/glyphosate-resistant soybean
Weed Technology, Mausbach, Jasmine, Irmak, Suat, Sarangi, Debalin, Lindquist, John, Jhala, Amit J., 2021

Growth phase-specific evaporative demand and nighttime temperatures determine Maize (Zea Mays L.) yield deviations as revealed from a long-term field experiment
Agricultural and Forest Meteorology, Singh, Arshdeep, Kukal, Meetpal S., Shapiro, Charles A., Snow, Daniel D., Irmak, Suat, Iqbal, Javed, 2021

Inter-relationships between water depletion and temperature differential in row crop canopies in a sub-humid climate
Agricultural Water Management, Singh, Jasreman, Ge, Yufeng, Heeren, Derek M., Walter-Shea, Elizabeth, Neale, Christopher M.U., Irmak, Suat, Woldt, Wayne E., Bai, Geng, Bhatti, Sandeep, Maguire, Mitchell S., 2021

Utilizing digital image processing and two-source energy balance model for the estimation of evapotranspiration of dry edible beans in western Nebraska
Irrigation Science, Liang, Wei zhen, Possignolo, Isabella, Qiao, Xin, DeJonge, Kendall, Irmak, Suat, Heeren, Derek, Rudnick, Daran, 2021

Scalable Privacy-preserving Geo-distance Evaluation for Precision Agriculture IoT Systems
ACM Transactions on Sensor Networks, Yan, Qiben, Lou, Jianzhi, Vuran, Mehmet C., Irmak, Suat, 2021

Water Requirement and Crop Coefficients of Young Jatropha curcas L. Trees in a Subtropical Humid Environment
Journal of Irrigation and Drainage Engineering - ASCE, Lena, Bruno Patias, Folegatti, Marcos Vinícius, Flumignan, Danilton Luiz, Irmak, Suat, Francisco, João Paulo, Diotto, Adriano Valentim, Almeida Santos, Otávio Neto, De Sousa Andrade, Irineu Pedro, Junior, Eder Duarte Fanaya, Alves Marques, Patrícia Angélica, Júnior, Cícero Renê Almeida Barboza, 2021

Chilling and heat accumulation of fruit and nut trees and flower bud vulnerability to early spring low temperatures in new mexico: Meteorological approach
Sustainability, Djaman, Koffi, Koudahe, Komlan, Darapuneni, Murali, Irmak, Suat, 2021

Comparative analyses of variable and fixed rate irrigation and nitrogen management for maize in different soil types: Part II. Growth, grain yield, evapotranspiration, production functions and water productivity
Agricultural Water Management, Sharma, Vasudha, Irmak, Suat, 2021

Comparative analyses of variable and fixed rate irrigation and nitrogen management for maize in different soil types: Part I. Impact on soil-water dynamics and crop evapotranspiration
Agricultural Water Management, Sharma, Vasudha, Irmak, Suat, 2021

Irrigation management in potato (Solanum tuberosum l.) production: A review
Sustainability, Djaman, Koffi, Irmak, Suat, Koudahe, Komlan, Allen, Samuel, 2021

MAIZE CROP COEFFICIENTS UNDER VARIABLE AND FIXED (UNIFORM) RATE IRRIGATION AND CONVENTIONAL AND VARIABLE RATE FERTILIZER MANAGEMENT IN THREE SOIL TYPES
Agricultural Water Management, Irmak, Suat, Sharma, Vasudha, Haghverdi, Amir, Jhala, Amit, Payero, José O., Drudik, Matthew, 2021

Propagation of soil moisture sensing uncertainty into estimation of total soil water, evapotranspiration and irrigation decision-making
Agricultural Water Management, Sharma, Kiran, Irmak, Suat, Kukal, Meetpal S., 2021

Performance assessment of Hybrid-Maize model for rainfed, limited and full irrigation conditions
Agricultural Water Management, Sandhu, Rupinder, Irmak, Suat, 2020

Economic comparisons of variable rate irrigation and fertigation with fixed (uniform) rate irrigation and fertigation and pre-plant fertilizer management for maize in three soils
Agricultural Water Management, Sharma, Vasudha, Irmak, Suat, 2020

A Statistical Impulse Response Model Based on Empirical Characterization of Wireless Underground Channels
IEEE Transactions on Wireless Communications, Salam, Abdul, Vuran, Mehmet C., Irmak, Suat, 2020

Spatio-temporal calibration of Hargreaves-Samani model to estimate reference evapotranspiration across U.S. High Plains
Journal of Production Agriculture, Kukal, M. S., Irmak, S., Walia, H., Odhiambo, L., 2020

Temporal trend analysis of meteorological variables and reference evapotranspiration in the inter-mountain Region of Wyoming
Water (Switzerland), Sharma, Vivek, Nicholson, Christopher, Bergantino, Antony, Irmak, Suat, Peck, Dannele, 2020

Control of velvetleaf (Abutilon theophrasti) at two heights with POST herbicides in Nebraska popcorn
Weed Technology, Barnes, Ethann R., Knezevic, Stevan Z., Lawrence, Nevin C., Irmak, Suat, Rodriguez, Oscar, Jhala, Amit J., 2020

Cover crop productivity and subsequent soybean yield in the western Corn Belt
Journal of Production Agriculture, Koehler-Cole, Katja, Elmore, Roger W., Blanco-Canqui, Humberto, Francis, Charles A., Shapiro, Charles A., Proctor, Christopher A., Ruis, Sabrina J., Heeren, Derek M., Irmak, Suat, Ferguson, Richard B., 2020

Dose response of yellow and white popcorn hybrids to glyphosate, a premix of 2,4-D choline and glyphosate, or dicamba
Journal of Production Agriculture, Barnes, Ethann R., Lawrence, Nevin C., Knezevic, Stevan Z., Irmak, Suat, Rodriguez, Oscar, Jhala, Amit J., 2020

Impact of irrigation on interannual variability in United States agricultural productivity
Agricultural Water Management, Kukal, M. S., Irmak, S., 2020

Light interactions, use and efficiency in row crop canopies under optimal growth conditions
Agricultural and Forest Meteorology, Kukal, M. S., Irmak, S., 2020

Evidence of arithmetical uncertainty in estimation of light and water use effciency
Sustainability, Kukal, Meetpal S., Irmak, Suat, 2020

Characterization of water use and productivity dynamics across four C₃ and C₄ row crops under optimal growth conditions
Agricultural Water Management, Kukal, M. S., Irmak, S., 2020

Perspectives on global water security
Transactions of the ASABE, Harmel, R. D., Chaubey, I., Ale, S., Nejadhashemi, A. P., Irmak, S., DeJonge, K. C., Evett, S. R., Barnes, E. M., Catley-Carlson, M., Hunt, S., Mani, I., 2020

Challenges and opportunities for education in irrigation engineering
Transactions of the ASABE, Porter, D. O., Irmak, S., Lamm, F., Marek, T. H., Rein, B., 2020

Irrigation scheduling for agriculture in the united states: The progress made and the path forward
Transactions of the ASABE, Taghvaeian, S., Andales, A. A., Allen, L. N., Kisekka, I., O’Shaughnessy, S. A., Porter, D. O., Sui, R., Irmak, S., Fulton, A., Aguilar, J., 2020

Development and application of a performance and operational feasibility guide to facilitate adoption of soil moisture sensors
Sustainability, Kukal, Meetpal S., Irmak, Suat, Sharma, Kiran, 2020

Irrigation-yield production functions and irrigation water use efficiency response of drought-tolerant and non-drought-tolerant maize hybrids under different irrigation levels, population densities, and environments
Sustainability, Irmak, Suat, Mohammed, Ali T., Kranz, William, Yonts, C. D., van Donk, Simon, 2020

Evaluation of soil moisture sensing technologies in silt loam and loamy sand soils: Assessment of performance, temperature sensitivity, and site- And sensor-specific calibration functions
Transactions of the ASABE, Sharma, K., Irmak, S., Kukal, M. S., Vuran, M. C., Jhala, A., Qiao, X., 2020

Global water security: Current research and priorities for action
Transactions of the ASABE, Ale, S., Harmel, R. D., Nejadhashemi, A. P., DeJonge, K. C., Irmak, S., Chaubey, I., Douglas-Mankin, K. R., 2020

Interrelationships between water use efficiency and light use efficiency in four row crop canopies
Agrosystems, Geosciences and Environment, Kukal, Meetpal S., Irmak, Suat, 2020

Weed control and response of yellow and white popcorn hybrids to herbicides
Journal of Production Agriculture, Barnes, Ethann R., Lawrence, Nevin C., Knezevic, Stevan Z., Rodriguez, Oscar, Irmak, Suat, Jhala, Amit J., 2020

Disk-till vs. no-till maize grass- and alfalfa-reference single (average) and basal (dual) crop coefficients
Agricultural Water Management, Irmak, Suat, Kukal, Meetpal S., 2019

Preemergence herbicide delays the critical time of weed removal in popcorn
Weed Technology, Barnes, Ethann R., Knezevic, Stevan Z., Lawrence, Nevin C., Irmak, Suat, Rodriguez, Oscar, Jhala, Amit J., 2019

Correction to: On the magnitude and dynamics of eddy covariance system residual energy (energy balance closure error) in subsurface drip-irrigated maize field during growing and non-growing (dormant) seasons (Irrigation Science, (2014), 32, 6, (471-483), 10.1007/s00271-014-0443-3)
Irrigation Science, Chatterjee, Sumantra, Irmak, Suat, Payero, Jose O., Kilic, Ayse, Odhiambo, Lameck O., Rudnick, Daran, Sharma, Vivek, Billesbach, David, 2019

Assessment of AquaCrop model in simulating maize canopy cover, soil-water, evapotranspiration, yield, and water productivity for different planting dates and densities under irrigated and rainfed conditions
Agricultural Water Management, Sandhu, Rupinder, Irmak, Suat, 2019

Performance of AquaCrop model in simulating maize growth, yield, and evapotranspiration under rainfed, limited and full irrigation
Agricultural Water Management, Sandhu, Rupinder, Irmak, Suat, 2019

Comparative canopy growth dynamics in four row crops and their relationships with allometric and environmental determinants
Journal of Production Agriculture, Kukal, M. S., Irmak, S., 2019

A Theoretical Model of Underground Dipole Antennas for Communications in Internet of Underground Things
IEEE Transactions on Antennas and Propagation, Salam, Abdul, Vuran, Mehmet C., Dong, Xin, Argyropoulos, Christos, Irmak, Suat, 2019

Disk-till vs. no-till maize evapotranspiration, microclimate, grain yield, production functions and water productivity
Agricultural Water Management, Irmak, Suat, Kukal, Meetpal S., Mohammed, Ali T., Djaman, Koffi, 2019

NU-Spidercam: A large-scale, cable-driven, integrated sensing and robotic system for advanced phenotyping, remote sensing, and agronomic research
Computers and Electronics in Agriculture, Bai, Geng, Ge, Yufeng, Scoby, David, Leavitt, Bryan, Stoerger, Vincent, Kirchgessner, Norbert, Irmak, Suat, Graef, George, Schnable, James, Awada, Tala, 2019

Quantifying and correcting for clay content effects on soil water measurement by reflectometers
Agricultural Water Management, Singh, J., Lo, T., Rudnick, D. R., Irmak, S., Blanco-Canqui, H., 2019

Net Ecosystem Exchange (NEE) simulation in maize using artificial neural networks
IFAC Journal of Systems and Control, Safa, Babak, Arkebauer, Timothy J., Zhu, Qiuming, Suyker, Andy, Irmak, Suat, 2019

Di-Sense: In situ real-time permittivity estimation and soil moisture sensing using wireless underground communications
Computer Networks, Salam, Abdul, Vuran, Mehmet C., Irmak, Suat, 2019

Spatiotemporal magnitudes and trends of cover-crop evapotranspiration in Nebraska, Iowa, and Kansas
Journal of Irrigation and Drainage Engineering - ASCE, Sharma, Vasudha, Irmak, Suat, 2019

Deficit Irrigation Management of Maize in the High Plains Aquifer Region: A Review
Journal of the American Water Resources Association, Rudnick, D. R., Irmak, S., West, C., Chávez, J. L., Kisekka, I., Marek, T. H., Schneekloth, J. P., Mitchell McCallister, D., Sharma, V., Djaman, K., Aguilar, J., Schipanski, M. E., Rogers, D. H., Schlegel, A., 2019

Impact of air temperature and relative humidity measured over rice and grass canopies on Penman-Monteith reference evapotranspiration estimates
Journal of Irrigation and Drainage Engineering - ASCE, Djaman, Koffi, Sall, Mamadou, Sow, Abdoulaye, Manneh, Baboucarr, Irmak, Suat, 2019

Time-domain and frequency-domain reflectometry type soil moisture sensor performance and soil temperature effects in fine- And coarse-textured soils
Applied Engineering in Agriculture, Zhu, Yan, Irmak, Suat, Jhala, Amit J., Vuran, Mehmet C., Diotto, Adriano, 2019

Irrigation-limited yield gaps: Trends and variability in the united states post-1950
Environmental Research Communications, Kukal, Meetpal S., Irmak, Suat, 2019

Grain yield, crop and basal evapotranspiration, production functions and water productivity response of drought-tolerant and nondrought-tolerant maize hybrids under different irrigation levels and population densities: Part I. In western Nebraska's semi-arid environments
Applied Engineering in Agriculture, Mohammed, Ali T., Irmak, Suat, Kranz, William L., Van Donk, Simon, Yonts, C. Dean, 2019

Actual evapotranspiration and crop coefficients of irrigated lowland rice (Oryza sativa L.) under semiarid climate
Italian Journal of Agronomy, Djaman, Koffi, Rudnick, Daran R., Moukoumbi, Yonnelle D., Sow, Abdoulaye, Irmak, Suat, 2019

Energy conservation using variable frequency drives for center-pivot irrigation systems equipped with corner watering attachments
Transactions of the ASABE, Brar, D., Kranz, W. L., Lo, T., Irmak, S., Martin, D. L., 2019

Grain yield, crop and basal evapotranspiration, production functions, and water productivity response of drought-tolerant and non-drought-tolerant maize hybrids under different irrigation levels, population densities, and environments: Part II. In south-central and northeast Nebraska's transition zone and sub-humid environments
Applied Engineering in Agriculture, Irmak, Suat, Mohammed, Ali T., Kranz, William L., 2019

Interspecific and intraspecific transference of metabolism-based mesotrione resistance in dioecious weedy Amaranthus
Plant Journal, Oliveira, Maxwel C., Gaines, Todd A., Patterson, Eric L., Jhala, Amit J., Irmak, Suat, Amundsen, Keenan, Knezevic, Stevan Z., 2018

U.S. Agro-Climate in 20^th Century: Growing Degree Days, First and Last Frost, Growing Season Length, and Impacts on Crop Yields
Scientific Reports, Kukal, Meetpal S., Irmak, Suat, 2018

Internet of underground things in precision agriculture: Architecture and technology aspects
Ad Hoc Networks, Vuran, Mehmet C., Salam, Abdul, Wong, Rigoberto, Irmak, Suat, 2018

Climate-Driven Crop Yield and Yield Variability and Climate Change Impacts on the U.S. Great Plains Agricultural Production
Scientific Reports, Kukal, Meetpal S., Irmak, Suat, 2018

Effects of cover crops on soil quality: Part II. Soil exchangeable bases (potassium, magnesium, sodium, and calcium), cation exchange capacity, and soil micronutrients (zinc, manganese, iron, copper, and boron)
Journal of Soils and Water Conservation, Sharma, V., Irmak, S., Padhi, J., 2018

Evaluating Effect of Degree of Water Stress on Growth and Fecundity of Palmer amaranth (Amaranthus palmeri) Using Soil Moisture Sensors
Weed Science, Chahal, Parminder S., Irmak, Suat, Jugulam, Mithila, Jhala, Amit J., 2018

Effects of cover crops on soil quality: Part I. Soil chemical properties-organic carbon, total nitrogen, pH, electrical conductivity, organic matter content, nitrate-nitrogen, and phosphorus
Journal of Soils and Water Conservation, Sharma, V., Irmak, S., Padhi, J., 2018

Latent heat and sensible heat flux simulation in maize using artificial neural networks
Computers and Electronics in Agriculture, Safa, Babak, Arkebauer, Timothy J., Zhu, Qiuming, Suyker, Andy, Irmak, Suat, 2018

An integrated modeling framework for crop and biofuel systems using the DSSAT and GREET models
Environmental Modelling and Software, Anderson, Ryan, Keshwani, Deepak, Guru, Ashu, Yang, Haishun, Irmak, Suat, Subbiah, Jeyamkondan, 2018

Comparison of sum-of-hourly and daily time step standardized ASCE Penman-Monteith reference evapotranspiration
Theorectical and Applied Climatology, Djaman, Koffi, Irmak, Suat, Sall, Mamadou, Sow, Abdoulaye, Kabenge, Isa, 2018

Cover crops have negligible impact on soil water in Nebraska Maize–Soybean rotation
Journal of Production Agriculture, Barker, J. Burdette, Heeren, Derek M., Koehler-Cole, Katja, Shapiro, Charles A., Blanco-Canqui, Humberto, Elmore, Roger W., Proctor, Christopher A., Irmak, Suat, Francis, Charles A., Shaver, Tim M., Mohammed, Ali T., 2018

Extending Extension's outreach: Using student interns as a resource for obtaining implementation of irrigation improvements
Journal of Extension, Ringenberg, Deanna, Kranz, William, Irmak, Suat, Dvorak, Bruce, 2018

Control of Photosystem II-and 4-hydroxyphenylpyruvate dioxygenase inhibitor-resistant palmer amaranth (amaranthus palmeri) in conventional corn
Weed Technology, Chahal, Parminder S., Irmak, Suat, Gaines, Todd, Amundsen, Keenan, Jugulam, Mithila, Jha, Prashant, Travlos, Ilias S., Jhala, Amit J., 2018

Effects of alternatewetting and drying irrigation regime and nitrogen fertilizer on yield and nitrogen use efficiency of irrigated rice in the Sahel
Water (Switzerland), Djaman, Koffi, Mel, Valere C., Diop, Lamine, Sow, Abdoulaye, El-Namaky, Raafat, Manneh, Baboucarr, Saito, Kazuki, Futakuchi, Koichi, Irmak, Suat, 2018

Internet of underground things: Sensing and communications on the field for precision agriculture, Vuran, Mehmet C., Salam, Abdul, Wong, Rigoberto, Irmak, Suat, 2018

Crop evapotranspiration, irrigation water requirement and water productivity of maize from meteorological data under semiarid climate
Water (Switzerland), Djaman, Koffi, O'Neill, Michael, Owen, Curtis K., Smeal, Daniel, Koudahe, Komlan, West, Margaret, Allen, Samuel, Lombard, Kevin, Irmak, Suat, 2018

Deficit irrigation and surface residue cover effects on dry bean yield, in-season soil water content and irrigation water use efficiency in western Nebraska high plains
Agricultural Water Management, Yonts, C. Dean, Haghverdi, Amir, Reichert, David L., Irmak, Suat, 2018

Impacts of cover crops on soil physical properties: Field capacity, permanent wilting point, soil-water holding capacity, bulk density, hydraulic conductivity, and infiltration
Transactions of the ASABE, Irmak, S., Sharma, V., Mohammed, A. T., Djaman, K., 2018

Long-term winter wheat (Triticum aestivum L.) seasonal irrigation amount, evapotranspiration, yield, and water productivity under semiarid climate
Agronomy, Djaman, Koffi, O’Neill, Michael, Owen, Curtis, Smeal, Daniel, West, Margaret, Begay, Dallen, Allen, Samuel, Koudahe, Komlan, Irmak, Suat, Lombard, Kevin, 2018

SPRIDE: Scalable and private continual geo-distance evaluation for precision agriculture, Yan, Qiben, Yang, Hao, Vuran, Mehmet C., Irmak, Suat, 2017

Soil-water dynamics, evapotranspiration, and crop coefficients of cover-crop mixtures in seed maize cover-crop rotation fields. I: Soil-water dynamics and evapotranspiration
Journal of Irrigation and Drainage Engineering - ASCE, Sharma, Vasudha, Irmak, Suat, Sharma, Vivek, Djaman, Koffi, Odhiambo, Lameck, 2017

Long-term spatial and temporal maize and soybean evapotranspiration trends derived from ground-based and satellite-based datasets over the great plains
Journal of Irrigation and Drainage Engineering - ASCE, Kukal, Meetpal, Irmak, Suat, Kilic, Ayse, 2017

Soil-water dynamics, evapotranspiration, and crop coefficients of cover-crop mixtures in seed maize cover-crop rotation fields. II: Grass-reference and alfalfa-reference single (normal) and basal crop coefficients
Journal of Irrigation and Drainage Engineering - ASCE, Sharma, Vasudha, Irmak, Suat, 2017

Impact of irrigation and nitrogen fertilizer rate on soil water trends and maize evapotranspiration during the vegetative and reproductive periods
Agricultural Water Management, Rudnick, D. R., Irmak, S., Djaman, K., Sharma, V., 2017

Towards Internet of Underground Things in smart lighting: A statistical model of wireless underground channel, Salam, Abdul, Vuran, Mehmet C., Irmak, Suat, 2017

Evapotranspiration, irrigation water requirement, and water productivity of rice (Oryza sativa L.) in the Sahelian environment
Paddy and Water Environment, Djaman, Koffi, Mel, Valere C., Balde, Alpha B., Bado, Boubie V., Manneh, Baboucarr, Diop, Lamine, Mutiibwa, Denis, Rudnick, Daran R., Irmak, Suat, Futakuchi, Koichi, 2017

Mesoscale modeling of the meteorological impacts of irrigation during the 2012 central plains drought
Journal of Applied Meteorology and Climatology, Aegerter, Clint, Wang, Jun, Ge, Cui, Irmak, Suat, Oglesby, Robert, Wardlow, Brian, Yang, Haishun, You, Jingshen, Shulski, Martha, 2017

Long-term trend analysis in climate variables and agricultural adaptation strategies to climate change in the Senegal River Basin
International Journal of Climatology, Djaman, Koffi, Balde, Alpha B., Rudnick, Daran R., Ndiaye, Ousmane, Irmak, Suat, 2017

Daily reference evapotranspiration estimation under limited data in eastern Africa
Journal of Irrigation and Drainage Engineering - ASCE, Djaman, Koffi, Irmak, Suat, Futakuchi, Koichi, 2017

Pollen-mediated gene flow from glyphosate-resistant common waterhemp (Amaranthus rudis Sauer): Consequences for the dispersal of resistance genes
Scientific Reports, Sarangi, Debalin, Tyre, Andrew J., Patterson, Eric L., Gaines, Todd A., Irmak, Suat, Knezevic, Stevan Z., Lindquist, John L., Jhala, Amit J., 2017

Impact of irrigation, surface residue cover and plant population on sugarbeet growth and yield, irrigation water use efficiency and soil water dynamics
Agricultural Water Management, Haghverdi, Amir, Yonts, C. Dean, Reichert, David L., Irmak, Suat, 2017

Comparison of Herbicide Programs for Season-Long Control of Glyphosate-Resistant Common Waterhemp (Amaranthus rudis) in Soybean
Weed Technology, Sarangi, Debalin, Sandell, Lowell D., Kruger, Greg R., Knezevic, Stevan Z., Irmak, Suat, Jhala, Amit J., 2017

Confirmation and Control of HPPD-Inhibiting Herbicide-Resistant Waterhemp (Amaranthus tuberculatus) in Nebraska
Weed Technology, Oliveira, Maxwel C., Jhala, Amit J., Gaines, Todd, Irmak, Suat, Amundsen, Keenan, Scott, Jon E., Knezevic, Stevan Z., 2017

Energy conservation using variable-frequency drives for center-pivot irrigation: Standard systems
Transactions of the ASABE, Brar, D., Kranz, W. L., Lo, T., Irmak, S., Martin, D. L., 2017

Spatial and temporal changes in maize and soybean grain yield, precipitation use efficiency, and crop water productivity in the U.S. great plains
Transactions of the ASABE, Kukal, M., Irmak, S., 2017

Analyses, calibration and validation of evapotranspiration models to predict grass-reference evapotranspiration in the Senegal river delta
Journal of Hydrology: Regional Studies, Djaman, Koffi, Tabari, Hossein, Balde, Alpha B., Diop, Lamine, Futakuchi, Koichi, Irmak, Suat, 2016

Evaluation of FAO-56 penman-monteith model with limited data and the valiantzas models for estimating grass-reference evapotranspiration in Sahelian conditions
Journal of Irrigation and Drainage Engineering - ASCE, Djaman, Koffi, Irmak, Suat, Kabenge, Isa, Futakuchi, Koichi, 2016

Long-term patterns of air temperatures, daily temperature range, precipitation, grass-reference evapotranspiration and aridity index in the USA Great Plains: Part I. Spatial trends
Journal of Hydrology, Kukal, M., Irmak, S., 2016

Pulses in the sand: Impulse response analysis of wireless underground channel, Salam, Abdul, Vuran, Mehmet C., Irmak, Suat, 2016

Effect of full and limited irrigation amount and frequency on subsurface drip-irrigated maize evapotranspiration, yield, water use efficiency and yield response factors
Irrigation Science, Irmak, Suat, Djaman, Koffi, Rudnick, Daran R., 2016

A multi-sensor view of the 2012 central plains drought from space
Frontiers in Environmental Science, Wang, Jun, Kessner, Amy L., Aegerter, Clint, Sharma, Ambrish, Judd, Laura, Wardlow, Brian, You, Jinsheng, Shulski, Martha, Irmak, Suat, Kilic, Ayse, Zeng, Jing, 2016

Economic return versus crop water productivity of maize for various nitrogen rates under full irrigation, limited irrigation, and rainfed settings in south central Nebraska
Journal of Irrigation and Drainage Engineering - ASCE, Rudnick, Daran, Irmak, Suat, Ferguson, Richard, Shaver, Tim, Djaman, Koffi, Slater, Glen, Bereuter, Aaron, Ward, Nicholas, Francis, Dennis, Schmer, Marty, Wienhold, Brian, Donk, Simon Van, 2016

Reference (potential) evapotranspiration. I: Comparison of temperature, radiation, and combination-based energy balance equations in humid, subhumid, arid, semiarid, and mediterranean-type climates
Journal of Irrigation and Drainage Engineering - ASCE, Gabriela Arellano, M., Irmak, Suat, 2016

Reference (potential) evapotranspiration. II: Frequency distribution in humid, subhumid, arid, semiarid, and mediterranean-type climates
Journal of Irrigation and Drainage Engineering - ASCE, Irmak, Suat, Gabriela Arellano, M., 2016

Large-scale spatial and temporal variability in evapotranspiration, crop water-use efficiency, and evapotranspiration water-use efficiency of irrigated and rainfed maize and soybean
Journal of Irrigation and Drainage Engineering - ASCE, Sharma, Vivek, Irmak, Suat, Djaman, Koffi, Sharma, Vasudha, 2016

Impact of scale/resolution on evapotranspiration from Landsat and MODIS images
Water Resources Research, Sharma, Vivek, Kilic, Ayse, Irmak, Suat, 2016

Effects of planting date and density on plant growth, yield, evapotranspiration, and water productivity of subsurface drip-irrigated and rainfed maize
Transactions of the ASABE, Irmak, S., Djaman, K., 2016

Long-term patterns of air temperatures, daily temperature range, precipitation, grass-reference evapotranspiration and aridity index in the USA great plains: Part II. Temporal trends
Journal of Hydrology, Kukal, Meetpal, Irmak, S., 2016

Embodied energy and energy return on investment analyses in maize production for grain and ethanol under center pivot, subsurface drip, and surface (furrow) irrigation with disk tillage and no-till practices
Transactions of the ASABE, Diotto, V., Irmak, S., 2016

Ecosystem evapotranspiration: Challenges in measurements, estimates, and modeling
Transactions of the ASABE, Amatya, D. M., Irmak, S., Gowda, P., Sun, G., Nettles, J. E., Douglas-Mankin, K. R., 2016

Effect of Water Stress on the Growth and Fecundity of Common Waterhemp (Amaranthus rudis)
Weed Science, Sarangi, Debalin, Irmak, Suat, Lindquist, John L., Knezevic, Stevan Z., Jhala, Amit J., 2016

Quantification and mapping of surface residue cover for maize and soybean fields in south central Nebraska
Transactions of the ASABE, Sharma, V., Irmak, S., Kilic, A., Sharma, V., Gilley, J. E., Meyer, G. E., Knezevic, S. Z., Marx, D., 2016

Trade-offs between winter cover crop production and soil water depletion in the San Joaquin Valley, California
Journal of Soils and Water Conservation, Mitchell, J. P., Shrestha, A., Irmak, S., 2015

Relative evaporative losses and water balance in subsurface drip and center pivot-irrigated soybean fields
Journal of Irrigation and Drainage Engineering - ASCE, Odhiambo, L. O., Irmak, S., 2015

Interannual variation in long-term center pivot-irrigated maize evapotranspiration and various water productivity response indices. I: Grain yield, actual and basal evapotranspiration, irrigation-yield production functions, evapotranspiration-yield production functions, and yield response factors
Journal of Irrigation and Drainage Engineering - ASCE, Irmak, S., 2015

Interannual variation in long-term center pivot-irrigated maize evapotranspiration and various water productivity response indices. II: Irrigation water use efficiency, crop WUE, evapotranspiration WUE, irrigation-evapotranspiration use efficiency, and precipitation use efficiency
Journal of Irrigation and Drainage Engineering - ASCE, Irmak, S., 2015

Evaluation of sixteen reference evapotranspiration methods under sahelian conditions in the Senegal River Valley
Journal of Hydrology: Regional Studies, Djaman, Koffi, Balde, Alpha B., Sow, Abdoulaye, Muller, Bertrand, Irmak, Suat, N'Diaye, Mamadou K., Manneh, Baboucarr, Moukoumbi, Yonnelle D., Futakuchi, Koichi, Saito, Kazuki, 2015

Confirmation and control of glyphosate-resistant common waterhemp (Amaranthus rudis) in Nebraska
Weed Technology, Sarangi, Debalin, Sandell, Lowell D., Knezevic, Stevan Z., Aulakh, Jatinder S., Lindquist, John L., Irmak, Suat, Jhala, Amit J., 2015

Surface energy balance, evapotranspiration, and surface coefficients during non-growing season in a maize-soybean cropping system
Transactions of the ASABE, Odhiambo, L. O., Irmak, S., 2015

Winter wheat (Triticum aestivum L.) evapotranspiration and single (normal) and basal crop coefficients
Transactions of the ASABE, Irmak, Suat, Djaman, Koffi, Sharma, Vivek, 2015

Large-scale and long-term trends and magnitudes in irrigated and rainfed maize and soybean water productivity: Grain yield and evapotranspiration frequency, crop water use efficiency, and production functions
Transactions of the ASABE, Irmak, Suat, Sharma, Vivek, 2015

Performance analysis of capacitance and electrical resistance-type soil moisture sensors in a silt loam soil
Transactions of the ASABE, Rudnick, D. R., Djaman, K., Irmak, S., 2015