Suat Irmak, Ph.D., Fellow ASABE; Fellow ASCE-EWRI
- Professor and Head of Agricultural and Biological Engineering
- Graduate Program Head
Agricultural Engineering Building, Rm. 105A
University Park, PA 16802
- Email sfi5068@psu.edu
- Office 814-865-6156
- PDF Curriculum Vitae
Areas of Expertise
- Soil and water resources engineering
- Impact of climate change on water resources and agro-ecosystem productivity
- Measurement and modeling of surface energy and water vapor balance
- Evapotranspiration, transpiration and evaporation
- Irrigation science and engineering; agro-ecosystem water management
- Nitrogen management and impacts on water and soil quality
- Impact of tillage practices on water and energy balance and water productivity
- Cover crop impact on soil quality (soil health) and water and energy balance
- Plant abiotic stresses vs productivity
- Plant phenotyping
- Measurement and modeling of soil moisture dynamics and soil physical properties
- Specialty cropping systems
- Agricultural IoTs
Education
- Ph.D. Agricultural and Biological Engineering University of Florida, Gainesville, FL
- MS Soil and Water Resources and Irrigation Engineering Mediterranean University, Antalya/Turkey
- BSc Agricultural Structures and Irrigation Engineering Cukurova University, Adana/Turkey
Publications
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
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
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
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, 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
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 20th 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
Impact of nitrogen fertilizer on maize evapotranspiration crop coefficients under fully irrigated, limited irrigation, and rainfed settings
Journal of Irrigation and Drainage Engineering - ASCE, Rudnick, D. R., Irmak, S., 2014
Soybean irrigation management: Agronomic impacts of deferred, deficit, and full-season strategies
Crop Science, Torrion, Jessica A., Setiyono, Tri D., Graef, George L., Cassman, Kenneth G., Irmak, Suat, Specht, James E., 2014
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, Irmak, Suat, Payero, Jose O., Kilic, Ayse, Odhiambo, Lameck O., Rudnick, Daran, Sharma, Vivek, Billesbach, David, 2014
The effect of land cover/land use changes on the regional climate of the USA high plains
Climate, Mutiibwa, Denis, Kilic, Ayse, Irmak, Suat, 2014
On the equality assumption of latent and sensible heat energy transfer coefficients of the bowen ratio theory for evapotranspiration estimations: Another look at the potential causes of inequalities
Climate, Irmak, Suat, Kilic, Ayse, Chatterjee, Sumantra, 2014
Soybean yield, evapotranspiration, water productivity, and soil water extraction response to subsurface drip irrigation and fertigation
Transactions of the ASABE, Irmak, S., Specht, J. E., Odhiambo, L. O., Rees, J. M., Cassman, K. G., 2014
Spatial and temporal maize soil water extraction (Depletion) dynamics: Part II. Impact of water and nitrogen management strategies on soil water extraction
Transactions of the ASABE, Rudnick, D. R., Irmak, S., 2014
Spatial and temporal maize soil water extraction (Depletion) dynamics: Part I. Development and evaluation of a soil water extraction model
Transactions of the ASABE, Rudnick, D. R., Irmak, S., 2014
A review of the Bowen ratio surface energy balance method for quantifying evapotranspiration and other energy fluxes
Transactions of the ASABE, Irmak, Suat, Skaggs, Karie E., Chatterjee, Sumantra, 2014
Implementation of a soil water extraction model on a spatial domain using field capacity and apparent electrical conductivity relationships
Transactions of the ASABE, Rudnick, D. R., Irmak, Suat, 2014