- Student Services
-
Academics
- Academics Overview
-
Undergraduate Majors
- Undergraduate Majors Overview
- Agribusiness
- Agricultural Education
- Agricultural Mechanization & Business
- Animal & Veterinary Sciences
- Environmental & Natural Resources
- Food Science & Human Nutrition
- Forest Resources Management
- Horticulture
- Packaging Science
- Plant and Environmental Sciences
- Turfgrass
- Wildlife & Fisheries Biology
- Agribusiness (BS)
-
Graduate Programs
- Graduate Programs Overview
- Request for Information
- Agricultural and Applied Economics (MS)
- Agricultural Education (MAgEd)
- Agriculture (MS, PhD)
- Animal & Veterinary Sciences (MS, PhD)
- Entomology (MS, PhD)
- Food, Nutrition and Culinary Sciences (MS)
- Food, Nutrition, and Packaging Sciences (PhD)
- Forest Resources (MFR, MS, PHD)
- Packaging Science (MS)
- Plant and Environmental Sciences (MS, PhD)
- Wildlife and Fisheries Biology (MWFR, MS, PhD)
- Academic Departments
- Academic Advising
- Extension
- Research
-
About
- About Overview
-
Employee Directory
- Employee Directory Overview
- All Employees
- CAFLS Faculty
- CAFLS Staff
- Cooperative Extension
- Agricultural Sciences
- Animal and Veterinary Sciences
- Food, Nutrition, and Packaging Sciences
- Forestry and Environmental Conservation
- Plant and Environmental Sciences
- First Generation College Students
- Diversity Identifiers
- Meet the Dean
- Belonging and Engagement
- Organizational Information
- Honors & Awards
- Alumni Connection
- Annual Report
- For Employees
- Contact Us
Jose Payero
Assistant Professor
Irrigation Specialist
Agronomic Crops Program Team, Water Resources Program Team, Agricultural Sciences Department, Edisto Research and Education Center
Office: Edisto REC
Phone: 803-284-3343
Fax: Blackville, SC
Email: jpayero@clemson.edu
Educational Background
Ph.D. Irrigation Engineening
Utah State University 1997
M.S. Agriculture-Plant Science
California State University-Fresno 1987
B.S. Agricultural Engineering
Pontificia Universidad Catolica Madre y Maestra 1984
Profile
Dr. Payero currently leads the Irrigation Research/Extension program at Clemson University (South Carolina, USA). From 2006 to 2012 he led irrigation research programs in Australia as a Senior Research Fellow for the University of Queensland (as part of the Queensland Alliance for Agriculture and Food Innovation (QAAFI)), as a Principal Research Scientist in Irrigated Farming Systems for the Queensland Department of Employment, Economic Development and Innovation (DEEDI) and as a Senior Research Scientist for the Queensland Department of Primary Industries and Fisheries (DPI&F) in Toowoomba, Australia. From 2000 to 2006 Dr. Payero led the University of Nebraska-Lincoln irrigation research and extension program in West Central Nebraska (North Platte, NE, USA) as an Assistant Professor for the Department of Biological System Engineering. Prior to 2000, Dr. Payero worked several years in Latin America, where he held academic positions in Costa Rica (Earth University) and The Dominican Republic (Universidad ISA).
Research Interests
Dr. Payero’s research focuses on on-farm agricultural water management, especially related to situations where water is limited. His research includes modeling and direct measurement of crop water use, crop response to water stress, water use efficiency, plant-water-atmosphere interactions, adaptation strategies for climate change and climate variability, irrigation scheduling, and the development of online decision support tools for irrigation planning and irrigation scheduling. Dr. Payero has more than 120 research and extension publications, covering a variety of subjects related to irrigated agriculture, including irrigation water management, crop nutrition, crop evapotranspiration, climate change, canopy energy balance, irrigation decision support systems, crop modeling, and remote sensing, among others.
Extension and Outreach
Currently conducting the following extension/outreach projects:
• Climate variability to climate change: Extension challenges and opportunities in the Southeast USA.
• Demonstration of Innovative Cropping Practices to Enhance Resilience to Drought While Optimizing Farm Profits.
• Demonstration of Deep-Rooted Cover Crop, Tillage and Controlled Traffic on Eliminating Hardpan Layer in Coastal Plain Soils to Enhance Soil Health and Farm Profits.
• Development of integrated regional web- and smartphone-based irrigation scheduling tools for cotton.
• Demonstration of Innovative Nutrient Management Strategies Combined with Soil Amendments to Enhance Fertilizer Use Efficiency, Farm Profits, and Environmental Quality.
• Demonstration of Subsurface Drip Irrigation for row crop production.
• Demonstration of modern soil moisture sensing technology for irrigation scheduling to Conserve Water and Energy, Protect the Environment, and Increase Farm Profits.
• Statewide demonstration of improved irrigation management to conserve water and enhance farm profits utilizing real-time and site-specific weather information.
Publications
• Qiao, X., Khalilian, A., Payero, J.O., Maja, J.M., Privette, C. V., and Han, Y. J. 2016. Utilizing Space-based Technology for Cotton irrigation Scheduling. Proceedings of the 13th International Conference on Precision Agriculture, July 31 – August 4, 2016, St. Louis, Missouri, USA, 11pp.
• Han, Y.J., Khalilian, A., Payero, J. and Rogers, N. 2016. Development of a Portable Electro-Mechanical Educational Model for Variable Rate Center Pivot Irrigation Technology. Journal of Water Resource and Protection, 8, 449-458. http://dx.doi.org/10.4236/jwarp.2016.84038.
• Williams, P., Khalilian, A., Marshall, M., and Payero, J.O. 2016. Deep rooted cover crops for managing soil compaction. 2016 Beltwide Cotton Conference. January 2016, New Orleans, LA, 6 pages.
• Leib, B., Payero, J.O., Pringle, L., Bordovsky, J., Porter, W., and Barnes, E., 2015. Placement and interpretation of soil moisture sensors. Cotton Incorporated. 9pp.
• Payero, J.O. 2015. “Tools and methods for determining soil moisture.†Proceedings of the Southeast Vegetable & Fruit Expo (Dec 1-2, 2015, Myrtle Beach, SC.) Page 37.
• Payero, J.O., Khalilian, A., Miller, G., Marshall, M., and Davis, R. 2015. Evaluating Skip-Row Planting As a Drought Adaption Strategy for Cotton. Proceedings of the 2015 Beltwide Cotton Conference, January 5-7, 2015, San Antonio, TX. 4 pages.
• Payero, J.O., Davis, R., and Khalilian, A. 2014. Demonstrating subsurface drip irrigation as a climate adaptation strategy for sustainable crop production in South Carolina. Proceedings of the 2014 South Carolina Water Resources Conference, Oct 15-16, 2014, Columbia, SC. Available online at: http://tigerprints.clemson.edu/do/search/?q=Payero&start=0&context=5470131
• Irmak, S., Payero, J.O., Kilic, A., Odhiambo, L.O., Rudnick, D., Sharma, V., and Billesbach, D. 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. DOI 10.10076/s00271-014-0443-3.
• Han, Y., Khalilian, A., Payero, J., Conrad, D., Richardson, R., Rogers, N., Watkins, B., 2014. Demonstration of Intelligent Center Pivot Irrigation Technology. Paper presented at the ASABE 2014 Annual International Meeting, Jul 13-16, 2014, Montreal, Canada; ASABE paper: 14-1893565.
• Qiao, X., Khalilian, A., Payero, J.O., Han, Y., Privette, C. 2014. Optimum sensor location for irrigation scheduling of cotton in a field with variable soil. Paper presented at the ASABE 2014 Annual International Meeting, Jul 13-16, 2014, Montreal, Canada; ASABE Paper: 14- 1896615.
• Payero, J., Qiao, X., Khalilian, A., and Davis, R. 2014. Impact of soil texture on the performance of three soil moisture sensor types. Paper presented at the ASABE 2014 Annual International Meeting, Jul 13-16, 2014
, Montreal, Canada. ASABE Paper: 14-1896885.
• Hiott, A. J., Payero, J.O., Kirk, K.R., Han, Y.J., Khalillian, A., and Harvey, C. 2014. Measuring evapotranspiration (ET) for multiple varieties of peanuts. Paper presented at the ASABE 2014 Annual International Meeting, Jul 13-16, 2014
, Montreal, Canada; ASABE Paper: 14-1917639.
• Payero, J.O. 2014. Using climate data to make irrigation decisions. Presented at the South Carolina Association of County Agricultural Agents (SCACAA) Annual Meeting and Professional Improvement Conference, May 27-29, Clemson, SC.
• Payero, J.O., Khalilian, A. 2014. Adopting Irrigation to reduce climate risk. Extension resource (fact sheet) published by Southeast Climate Extension, University of Florida, 4 pages. Available at: http://agroclimate.org/management/Irrigation-and-climate-risks.pdf.
• Payero, J.O., Khalilian, A., Miller, G., and Marshall, M. 2014. Adapting to drought using skip-row planting. Poster presented at the 2014 Southeast Climate Consortium program review conference, May 6-9, 2014, Tallahassee, FL.
• Irmak, S., Payero, J.O., VanDeWalle, B., Rees, J., and Zoubek, G. 2014. Principles and Operational Characteristics of Watermark Granular Matrix Sensor to Measure Soil Water Status and Its Practical Applications for Irrigation Management in Various Soil Textures. Extension Circular EC783. University of Nebraska-Lincoln Extension, 14 pages.
• Payero, J.O., Khalilian, A., Miller, G., and Marshall, M. 2014. Adapting to drought through demonstration of water conservation technologies. Proceedings of the Carolinas Climate Resilience Conference. April 28-29, 2014. Charlotte, NC.
• Hiott, A., Payero, J.O., Kirk, K.R., Han, Y.J., Khalilian, A, Harvey, C. 2014. Development of Above Ground, Counterbalance Weighing Lysimeters for Measuring Evapotranspiration. Proceedings of the ASABE Conference “2014 Evapotranspiration: Challenges in Measurement and Modeling from Leaf to the Landscape Scale and Beyondâ€, Apr 7-11, 2014, Raleigh, NC.
• Payero, J.O., Harvey, C., and Khalilian, A. 2014. An online county-specific evapotranspiration calculator for South Carolina. Proceedings of the ASABE Conference “2014 Evapotranspiration: Challenges in Measurement and Modeling from Leaf to the Landscape Scale and Beyondâ€, Apr 7-11, 2014, Raleigh, NC.
• Qiao, X., Khalilian, A., Payero, J.O., Farahani, H.J., 2014. Modeling ET and Water Productivity in Irrigated Cotton Using the FAO AquaCrop Model. Proceedings of the ASABE Conference “2014 Evapotranspiration: Challenges in Measurement and Modeling from Leaf to the Landscape Scale and Beyondâ€, Apr 7-11, 2014, Raleigh, NC.
• Qiao, X., Khalilian, A., Payero, J.O., Han, Y., Privette, C. 2014. Developing an Effective Sensor-Based Irrigation Scheduling Technique for Cotton Production in Coastal Plain Soils. Proceedings of the 2014 Beltwide Cotton Conference, Jan 6-8, New Orleans, LA (7 pages).
• Payero, J.O., Khalilian, A., Miller, G., and Marshall, M. 2013. Field Demonstrations of Drought Adaptation Farming Strategies in South Carolina. Poster presented at the South East Climate Consortium (SECC) Program Planning 2013, Gainesville, FL, 12-15 Nov, 2013.
• Irmak, S., Mutiibwa, D., Payero, J., Marek, T., Porter, D. 2013. Modeling canopy resistance on hourly time steps from micrometeorological and plant variables for one-step estimation of actual crop evapotranspiration. Journal of Hydrology, 507:1-18.
• Payero, J.O., Khalilian, A., Miller, G., and Marshall, M. 2013. Adapting to drought through education and demonstration of innovative on-farm water conservation and irrigation management technologies in South Carolina. Proceedings of the Water Education Summit, Sept 24-26, 2013, Chattanooga, TN.
• Payero, J.O., Irmak, S. 2013. Daily energy fluxes, evapotranspiration and crop coefficient of soybean. Agricultural Water Management, 129:31-43. http://dx.doi.org/10.1016/j.agwat.2013.06.018
• Harris, G.A., Payero, J.O., Jackson, R., Peake, A., 2013. Irrigated wheat-best practice guide. In: Wigginton, D. (Ed.), WATERpak – a guide for irrigation management in cotton and grain farming systems. Cottton Research and Development Corporation, Narrabri, NSW, Australia, pp. 290-297.
• Chauhan, Y.S, Wright, G.C., Holzworth, D., Rachaputi, R.C.N., and Payero, J.O. 2013. AQUAMAN – a web-based decision support system for irrigation scheduling in peanuts. Irrigation Science, 31: 271–283.
• Payero, J.O., and Khalilian, A., 2013. Subsurface Drip Irrigation: A Management Option for Climate Variability and Change. Extension resource published by Southeast Climate Extension, University of Florida, 5 pages. Available at: http://www.agroclimate.org/seclimate/extension-resources/
• Payero, J.O., and Khalilian, A., 2013. Drought Adaptation Option: Soil moisture monitoring. Extension resource published by Southeast Climate Extension, University of Florida, 4 pages. Available at: http://www.agroclimate.org/seclimate/extension-resources/
• Payero, J.O., and Khalilian, A., 2013.Subsurface Drip Irrigation for row crops: An Introduction. Extension resource published by Clemson University, 4 pages. Available at: http://www.clemson.edu/extension/rowcrops/index.html.
• Payero, J.O., and Khalilian, A., 2013. An Introduction to Soil Moisture Monitoring Systems. Extension resource published by Clemson University, 4 pages. Available at: http://www.clemson.edu/extension/rowcrops/index.html.
• Khalilian, A., Qiao, X., Farahani, H., Payero, J.O., 2013. Parameterization of the FAO AquaCrop model for irrigated cotton in the humid southeast. Proceedings of the 2013 Beltwide Cotton Conference, Jan 7-10, San Antonio, TX. 6 pp.
• Payero, J.O. and G., Harris. 2013. Soil water extraction of Bollgard® II cotton in a heavy soil. Proceedings of the 2013 Beltwide Cotton Conference, Jan 7-10, San Antonio, TX. 5 pp.
• Scheer, C., Grace, P.R., Rowlings, D.W., and Payero, J.O. 2013. Soil N2O and CO2 emissions from cotton in Australia under varying irrigation management. Nutrient Cycling in Agroecosystems, 95 (1): 43-56.
• Payero, J.O., G. Robinson, Harris, G., and D. Singh. 2012. Water extraction of solid and skip-row cotton. Proceedings of the 16th Australian Society of Agronomy Conference, Capturing Opportunities and Overcoming Obstacles in Australian Agronomy, 14-18 Oct 2012, University of New England, Armidale, NSW, Australia. 4 pages (available online at http://www.regional.org.au/au/asa/2012/soil-water-management/8558_payerojo.htm#TopOfPage).
• Payero, J. and Harris, G.A and Singh, D. and Vriesema, S. and Hare, J. and Pendergast, L. and Chauhan, Y. 2012. WaterSched2: A web-based tool for irrigation scheduling. In: “Capturing Opportunities and Overcoming Obstacles in Australian Agronomy". Edited by I. Yunusa. Proceedings of 16th Australian Agronomy Conference 2012, 14-18 October 2012, Armidale, NSW.
• Cammarano, D., Grace, P. Payero, J.O., Basso, B., and Wilkens, P. 2012. Agronomic and economic evaluation of irrigation strategies on cotton lint yield in Australia. Crop & Pasture Science, 63:647–655.
• Cammarano, D., Payero, J.O., Basso, B., and Grace, P., 2012. Adapting wheat sowing dates to projected climate change in the Australian sub-tropic: analysis of crop water use and yield. Crop & Pasture Science, 63, 974–986.
• Payero, J.O. and G. Harris. 2012. Maximising profits of irrigated cotton. Australian Cotton Water Story. Australian Cotton CRC. Narrabri, Australia. In press.
• Irmak, S., M.J. Burgert, H.S. Yang, K.G. Cassman, D.T. Walters, W.R. Rathje, J.O. Payero, P. Grassini, M.S. Kuzila, K.J. Brunkhorst, W.L. Kranz, D.E. Eisenhauer, C.A. Shapiro, B. VanDeWalle, J.M. Rees, G.L. Zoubek, and G.J. Teichmeier. 2012. Large scale on-farm implementation of soil moisture-based irrigation management strategies for increasing maize water productivity. Transactions of the ASABE, 55(3): 881-894.
• Griffiths, B., Gett, V., Jackson, R., Burley, T., Harris, G., and Payero, J., 2012. Addressing agronomic constraints in irrigated wheat production in the northern grain region. Cotton CRC Science Review, March 2012. In press.
• Scheer, C., Grace, P., Rowlings, D.W., and Payero, J.O. 2012. Nitrous Oxide emissions from irrigated wheat in Australia: Impact of irrigation management. Plant and Soil, 359 (1-2): 351-362.
• Padhi, J. Misra, R.K., Payero, J.O. 2012. Estimation of soil water deficit in an irrigated cotton field with infrared thermography. Field Crops Research,126: 45-55.
• Payero, J.O., and Irmak, S. 2011. Daily Crop Evapotranspiration, Crop Coefficient and Energy Balance Components of a Surface-Irrigated Maize Field. Chapter 4 in “Evapotranspiration - From Measurements to Agricultural and Environmental Applicationsâ€, Giacomo A. Gerosa (Ed.), ISBN: 978-953-307-512-9, InTech, pages 59-78. Available from: http://www.intechopen.com/articles/show/title/daily-crop-evapotranspiration-crop-coefficient-and-energy-balance-components-of-a-surface-irrigated-
• Power, B., Rodriguez, D., deVoil, P., Harris, G., Payero, J.O. 2011. A multi-field bio-economic model of irrigated grain-cotton farming systems. Field Crops Research, 124 (2): 171-179.
• Misra, R.K., Padhi, J., Payero, J.O. 2011. A calibration procedure for load cells to improve accuracy of mini-lysimeters in monitoring evapotranspiration. Journal of Hydrology, 406: 113–118.
• Payero, J.O., D. Singh, G. Harris, S. Vriesema, J. Hare, L. Pendergast, and Y.S. Chauhan. 2011. Application of a new web-based tool (CropWaterUse) for determining evapotranspiration and irrigation requirements of major crops at three locations in Queensland, p. 295-318, In L. Labedzki, ed. Evapotranspiration. InTech. (Available at: http://www.intechopen.com/books/show/title/evapotranspiration).
• Chenu, K., Christopher, J. T., McLean, G., Payero, J.O., Hammer, G.L., 2011. New lysimeter platforms to phenotype daily transpiration over the crop cycle in contrasting wheat lines. In: Wheat Breeding Assembly, Perth, Australia, 24-26 August 2011.
• Payero, J.O., Robinson, G., Harris, G. 2010. Evaluation of irrigation and nitrogen management strategies for wheat production on the Darling Downs. Abstracts of the 15th Australian Agronomy Conference, Lincoln, New Zealand, 15-18th November 2010, Page 100. Full paper (4 pp) available online at www.regional.org.au/au/asa/2010/.
• Payero, J.O., Harris, T.R. 2010. Evaluation of the surface renewal method to estimate crop evapotranspiration of a cotton field. Abstracts of the 15th Australian Agronomy Conference, Lincoln, New Zealand, 15-18th November 2010, Page 100. Full paper (4 pp) available online at www.regional.org.au/au/asa/2010/.
• Payero, J.O. 2010. Assessing limited water strategies in cotton farming systems. Cotton CRC 2010 Science Forum-Program and Abstracts, page 41, Narrabri 26-28 Oct 2010.
• Payero, J.O. 2010. Maximising profitability with limited water in cotton farming systems. Final project report for project Cotton CRC 1.02.09. Submitted to the Cotton Communities CRC. 281 pages.
• Payero, J.O., Harris, G., Robinson, G., 2010. Cotton soil water extraction. Poster presented at the 15th Australian Cotton Conference. 10 - 12 August, 2010. Gold Coast Convention & Exhibition Centre, Broadbeach, Queensland, Australia.
• Payero, J.O., Harris, G., Robinson, G. Singh, J., 2010. Soil water use from single-skip and solid cotton. Poster presented at the 15th Australian Cotton Conference. 10 - 12 August, 2010. Gold Coast Convention & Exhibition Centre, Broadbeach, Queensland, Australia.
• Payero, J.O., Harris, G., Robinson, G. Singh, J., 2010. Measuring crop water use of local crops. Poster presented at the 15th Australian Cotton Conference. 10 - 12 August, 2010. Gold Coast Convention & Exhibition Centre, Broadbeach, Queensland, Australia.
• Payero, J.O., Harris, G., Robinson, G. Singh, J., 2010. Measuring crop water use and CO2 by Eddy covariance. Poster presented at the 15th Australian Cotton Conference. 10 - 12 August, 2010. Gold Coast Convention & Exhibition Centre, Broadbeach, Queensland, Australia.
• Irmak, S., Mutiibwa, D., Payero, J.O. 2010. Net radiation dynamics: Performance of 20 net radiation models as related to model structure and intricacy in two climates. Transactions of the ASABE, 53(4): 1059-1076.
• Singh, D., Hare, J., Limpus, S., Payero, J.O., Vriesema, S., Pendergast, L., Harris, G., Chauhan, Y. 2010. The Water Requirement of Cotton and Wheat in a Changing Climate: a Queensland Analysis. Proceedings of the 2010 Australian Irrigation Conference, 8-10 June, Sydney, Australia, pages 158-152.
• Limpus, S., Henderson, C., Finlay, G., Singh, D., and Payero, J.O. Optimizing profitability of sweet corn by understanding high plant density effects on water use, phenology and yield. Oral presentation at the 2010 Australian Irrigation Conference, 8-10 June, Sydney, Australia.
• Power, B., Rodriguez, D., deVoil, P., Harris, G., Payero, J.O. 2010. A multi-paddock bio-economic model of irrigated grain-cotton farming systems. Proceedings of the 2010 Australian Irrigation Conference, 8-10 June, Sydney, Australia, pages 252-253.
• Payero, J.O., Harris, G., Vriesema, S., Singh, D., Hare, J., Pendergast, L., Limpus, S., Chauhan, Y. 2010. CropWaterUse: a web-based tool for irrigation planning of fully-irrigated crops in Australia. Proceedings of the 2010 Australian Irrigation Conference, 8-10 June, Sydney, Australia, pages 61-62.
• Singh, D., Vriesema, S., Payero, J.O., Harris, G. 2010. Water requirements of irrigated summer grain crops in Queensland. Presented at the 2010 Australian Summer Grains Conference. 21-24 June, Ashmore, Gold Coast, Queensland, Australia.
• Padhi, J., Payero, J.O., Misra, R. 2010. Measuring the effect of water stress on wheat evapotranspiration. Proceedings of the 2010 Australian Irrigation Conference, 8-10 June, Sydney, Australia, pages 203-204.
• Padhi, J., Misra, R. J., Payero, J.O., 2010. Prospects of using infrared thermography for irrigation scheduling of wheat crop. Proceedings of the 2010 Australian Irrigation Conference, 8-10 June, Sydney, Australia, pages 258-259.
• Payero, J.O., D.D. Tarkalson, S. Irmak, D. Davison, and J.L. Petersen. 2009. Effect of timing of a deficit-irrigation allocation on corn evapotranspiration, yield, water use efficiency and dry mass. Agricultural Water Management 96:1387-1397.
• Power, B., DeVoil, P., Rodriguez, D., Harris, G. and Payero, J.O., 2009. Integrating sub-models at differing scales to improve the profitability of irrigated farm business, Farming Systems Design 2009, An International Symposium on Methodologies for Integrated Analysis of Farm Production Systems, Monterey, CA, pp. 1-2.
• Padhi, J., Misra, R.K., Payero, J.O. 2009. Use of infrared thermography to detect water deficit response in an irrigated cotton crop. International Conference on Food Security and Environmental Sustainability (FSES 2009), 17-19 December, 2009, Indian Institute of Technology, Kharagpur, India, 10 pp.
• Payero, J.O. and Irmak, S., 2008. Construction, installation, and performance of two repacked weighing lysimeters. Irrigation Science, 26: 191-202.
• Tarkalson, D.D., Payero, J.O. 2008. Comparison of Nitrogen fertilization methods and rates for sub-surface drip irrigated corn in the semi-arid Great Plains. Transactions of the ASABE, 51(5):1633-1643.
• Payero, J.O. and Harris, G.A., 2008. Optimising irrigated grain production with limited water. Proceedings of the 2008 Grains Research Update. Grains Research and Development Corporation, 19-20 August, Dalby, Australia, pp. 75-80.
• Payero, J.O., 2008. Optimising maize yield under irrigation. Proceedings of the 2008 Summer Crop Grains Research Update. Grains Research and Development Corporation, 19-20 August, Dalby, Australia, pp. 68-74.
• Irmak, S., A. Irmak, T.A. Howell, D. Martin, J.O. Payero, and K.S. Copeland. 2008. Variability analyses of alfalfa-reference to grass-reference evapotranspiration ratios in growing and dormant seasons. Journal of Irrigation and Drainage Engineering 134:147-159.
• Payero, J.O., D.D. Tarkalson, S. Irmak, D. Davison, and J.L. Petersen. 2008. Effect of irrigation amounts applied with subsurface drip irrigation on corn evapotranspiration, yield, water use efficiency, and dry matter production in a semiarid climate. Agricultural Water Management, 95: 895-908.
• Power, B., DeVoil, P., Payero, J.O., Rodriguez, D. and Harris, G., 2008. Using the farm- scale system model APSFarm to improve profitability of irrigation cropping enterprises. 14th Australian Society of Agronomy Conference, 21-25 September 2008, Adelaide, South Australia, pp. 4.
• Payero, J.O., Harris, G.A., Power, B., Goyne, P. 2008. Maximizing profits with limited water. Poster presented at the 14th Australian Cotton Conference-New beginnings-cotton in a climate of change, Broadbeach, Queensland, Australia, 12-14 August 2008.
• Payero, J.O. and Harris, G., 2008. An overview of cotton water use efficiency in Australia. In: K. Charleston (Editor), Darling Downs District cotton trial book 2000-2007. DPI&F, Cotton CRC, Dalby.