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United States Department of Agriculture

Agricultural Research Service

Jalal "jay" D. Jabro

Research Soil Scientist

 

Jay Jabro. Jalal "Jay" D. Jabro

Research Soil Scientist

Phone: 406.433.9442
Fax: 406.433.5038
 



Education • Current Research • Research Experience • Poplular Press Articles • Publications • Abstracts


Additional Pages:
 
Research Projects,* Publications*

*Taken from the Agricultural Research Information System (ARIS) database.


 

EDUCATION

 

B.S.  Soil Science 1972 University of Baghdad, Iraq

M.S.  Soil Physics

1979

Iowa State University

Ph.D. Environmental Soil Physics/Agricultural Engineering
1988 Pennsylvania Stae University

M.S. Internet Information Systems
 
2004 Robert Morris University


CURRENT RESEARCH

Dr. Jabro joined his USDA colleagues in Sidney, MT in February, 2005. His general research goals include: environmental soil physics, irrigation management and water quality.

His specific research goals will address the following interrelated areas: 1) development and evaluation of diversified center pivot irrigated cropping systems that enhance nitrogen and water use efficiencies, and improve soil and water quality; 2) development and evaluation of soil and water management practices that reduce soil compaction and improve soil and water quality by reducing erosion and agricultural chemical losses to ground and surface waters; and, 3) development of databases that can be used to adapt and/or evaluate suitable soil-water-plant models. These research areas will be investigated independently and collaboratively with other NPARL scientists.

  

RESEARCH EXPERIENCE

Dr. Jabro has made significant contributions as a researcher and teacher in the soils, computer modeling, and statistics/math areas. His career was launched at the Pennsylvania State University’s Department of Crops and Soil Sciences and The Environmental Research Resources Institute where he served as a Research Associate/Assistant Professor (1988-1999) and project leader or integral member on numerous interdisciplinary grants research projects. His research projects and publications focused on water flow under saturated and unsaturated conditions, nitrate transport and leaching, assessing spatial and temporal variability of soil physical and hydraulic properties, and evaluation of non-point source pollution models under various soils, crops and weather conditions during this time.

In 2000, Dr. Jabro accepted a position as a soil scientist with the USDA-ARS in Prosser, Washington (1/00-9/02), where he focused on honing his research expertise in the areas of nitrogen management, irrigation monitoring, water quality, and soil moisture sensors technology under potato cropping system.  Additionally, Dr. Jabro managed the experimental site for which he earned the appreciation award. 

In 2002, Dr. Jabro served as a Research Associate at the Irrigated Agriculture Research and Extension Center at WSU-Prosser, where he conducted research and wrote grants in the areas of irrigation practices, water quality, and soil moisture sensors technology under various cropping systems.  He also taught chemistry at the local community college and was involved in various environmentally-oriented community events.

In 2004, Jay joined the Pennsylvania Department of the Environmental Protection (PADEP) as a soil scientist. He evaluated site-specific soil conditions as they related to the feasibility and design of soil dependent sewage disposals systems and sprinkler and sub-drip irrigation systems.  Dr. Jabro has been privileged to share his knowledge with graduate and undergraduate students through graduate committee participation and instruction of numerous courses in soils, environmental sciences, statistics, and math, quantitative analysis, chemistry, and computer sciences at various universities. 
  

POPULAR PRESS ARTICLES
Growers explore ways of reducing soil compaction at field day (The Prairie Star, October 8, 2011)
   

SELECTED REFEREED PUBLICATIONS  (Last 3 Years)

Please note: The most recent publications by this scientist may not yet be listed here. Please check the ARIS " Publications" page for possible new titles.

  • Qi, Z., Bartling, P.N., Jabro, J.D., Lenssen, A.W., Iversen, W.M., Ahuja, L.R., Ma, L., Allen, B.L., Evans, R.G. 2013. Simulating dryland water availability and spring wheat production under various management practices in the Northern Great Plains. Agronomy Journal. 105:37-50. 

  • Jabro, J.D., Jabro, A.D., Steven, F.L. 2012. Models performance and robustness for simulating drainage and nitrate-nitrogen fluxes without recalibration. Soil Science Society of America Journal. 76(6): 1957–1964. (PDF; 1197 KB)

  • Jabro, J.D., Iversen, W.M., Evans, R.G. 2012. Performance evaluation and accuracy of passive capillary samplers (PCAPs)for estimating real-time drainage water fluxes. Applied Engineering in Agriculture. 18(4):537-542. 

  • Jabro, J.D., Iversen, W.M., Evans, R.G., Stevens, W.B. 2012. Water use and water productivity of sugarbeet, malt barley and potato as affected by irrigation frequency. Agronomy Journal. 104(6):1510-1516. 

  • Jabro, J.D., Sainju, U.M., Stevens, W.B., Evans, R.G. 2012. Estimation of CO2 diffusion coefficient at 0-10 cm depth in undisturbed and tilled soils. Archives of Agronomy and Soil Science . 58(1): 1-9. 

  • Sainju, U.M., Lenssen, A.W., Caesar, T., Jabro, J.D., Lartey, R.T., Evans, R.G., Allen, B.L. 2012. Tillage, crop rotation, and cultural practice effects on dryland soil carbon fractions. Open Journal of Soil Science. 2(3):242-255. 

  • Sainju, U.M., Lenssen, A.W., Caesar, T., Jabro, J.D., Lartey, R.T., Evans, R.G., Allen, B.L. 2012. Dryland soil nitrogen cycling influenced by tillage, crop rotation, and cultural practice. Nutrient Cycling in Agroecosystems. 93(3):309-322. 

  • Jabro, J.D., Stevens, W.B., Iversen, W.M., Evans, R.G. 2011. Bulk density, water content and hydraulic properties of a sandy loam soil following conventional or strip tillage. Applied Engineering in Agriculture. 27(5):765-768. (PDF; 123 KB

  • Jabro, J.D., Sainju, U.M., Lenssen, A.W., Evans, R.G. 2011. Tillage Effects on Dryland Soil Physical Properties in Northeastern Montana. Communications in Soil Science and Plant Analysis. 42(18):2179-2187. (PDF; 354 KB)

  • Kim, Y., Jabro, J.D., Evans, R.G. 2011. Wireless lysimeters for real-time online soil water monitoring. Irrigation Science. 29(5):423-430.  (PDF; 850 KB)

  • Sainju, U.M., Lenssen, A.W., Caesar, T., Jabro, J.D., Lartey, R.T., Evans, R.G., Allen, B.L. 2011. Dryland residue and soil orgranic matter as influenced by tillage, crop rotation, and cultural practice. Plant and Soil Journal. 338:27-41. (PDF, 213 KB)

  • Abou Najm, M.R., J.D. Jabro, W.M. Iversen, R.H. Mohtar, and R.G. Evans. 2010. New Method for Characterization of Three-Dimensional Preferential Flow Paths in the Field. Water Resources Research VOL. 46, W02503, doi:10.1029/2009WR008594. (PDF: 2554 KB)

  • Evans, R.G., W.M. Iversen, W.B. Stevens, and J.D. Jabro. 2010. Development of combined site-specific MESA and LEPA methods on a linear move sprinkler irrigation system. 26(5):883-895. (PDF; 10370 KB)

  • Jabro, J.D, U.M. Sainju, W.B. Stevens, and R.G. Evans. 2010. Estimation of CO2 Diffusion Coefficient at 0 – 10 cm Depth in Undisturbed and Tilled Soils. Archives in Agronomy and Soil Science. (In press).

  • Jabro, J.D., W.B. Stevens, R.G. Evans, and W.M. Iversen. 2010. Spatial Variability and Correlation of Selected Soil Properties in the AP Horizon of the CRP Grassland. Applied Engineering in Agriculture 26(3):419-428. (PDF: 2274 KB)
  • Jabro J.D., W.B. Stevens, W.M. Iversen, and R.G. Evans. 2010. Tillage Depth Effects on Soil Physical Properties, Sugarbeet Yield and Quality. Communications in Soil Science and Plant Analysis 41(7):908-916. (PDF; 216 KB)

  • Sainju, U.M., J.D. Jabro, and T. Caesar-TonThat. 2010. Tillage, Cropping Sequence and Nitrogen Fertilization Effects on Dryland Soil Carbon Dioxide Emission and Carbon Content. J. Environ. Quality 39(3):935-945. (PDF: 1508 KB)

  • Sainju, U.M., Stevens, W.B., Caesar, T., Jabro, J.D. 2010. Land Use and Management Practices Impact on Plant Biomass Carbon and Soil Carbon Dioxide Emission. Soil Science Society of America Journal. 74(5):1613-1622.
    (
    PDF: 782 KB) 

  • Stevens, W.B., Evans, R.G., Jabro, J.D., Iversen, W.M. 2010. Nitrogen Availability for Sugarbeet affected by Tillage System and Sprinkler Irrigation Method. Agronomy Journal. 102:1745-1752. (PDF; 1064 KB)
  • Jabro, J.D. 2009. Water Vapor Diffusion through Soil as Affected by Temperature and Aggregate Size. Transport in porous media. 77:417-428.  (PDF; 334 KB)

  • Jabro, J.D., R.G. Evans, Y. Kim and W.M. Iversen. 2009. Estimating In-situ Soil-Water Retention and Field Water Capacity Measurements in Two Contrasting Soil Textures. Irrigation Science 27:223–229.  (PDF; 370 KB 

  • Jabro, J.D., Y. Kim, R.G. Evans, W.M. Iversen, and William B. Stevens. 2008. Passive Capillary Sampler for Measuring Soil Water Drainage and Flux in the Vadose Zone: Design, Performance and Enhancement. Applied Engineering in Agricultural. 24(4):439-446. (PDF: 384 KB)

  • Jabro, J.D., U.M. Sainju, W.B. Stevens, A.W. Lenssen, and R.G. Evans. 2009. Long-term Tillage Influences on Soil Physical Properties under Dryland Conditions in Northeastern Montana. Archives in Agronomy and Soil Science. 55(6):633-640.

  • Jabro, J.D., W.B. Stevens, R.G. Evans, W.M. Iversen. 2009. Tillage effects on physical properties in two soils of the Northern Great Plains. Applied Engineering in Agriculture 25(3):377-382. (PDF: 143 KB)

  • Sainju, U.M., T. Caesar-TonThat, and J.D. Jabro. 2009. Carbon and nitrogen fractions in dryland soil aggregates affected by long-term tillage and cropping sequence. Soil Sci. Soc. Am. J. 73:1488-1495. (PDF: 1536 KB)

  • Jabro, J.D., U. Sainju, W.B. Stevens, and R.G. Evans. 2008. Carbon Dioxide Flux as Affected by Tillage and Irrigation in Soil Converted from Perennial Forages to Annual Crops. J. Environmental Management 88(4):1478-1484. (PDF; 344 KB)
  • Jabro, J.D., Evans, R.G., Stevens, W.B., Iversen, W.M. 2008. Repeatability of soil apparent electrical conductivity measured by a coulter sensor. Soil Science. 173(1):35-45. (PDF; 6336 KB)

  • Sainju, U.M., Jabro, J.D., Stevens, W.B. 2008. Soil carbon dioxide emission and carbon sequestration as influenced by irrigation, tillage, cropping system, and nitrogen fertilization. Journal of Environmental Quality. 37:98-106.
    (
    PDF; 1061 KB)

SELECTED ABSTRACTS  (Last 3 Years)

  • Jabro, J.D., W.B. Stevens, R.G. Evans, W.M. Iversen. 2010. Spatial and Temporal Variations of Soil Penetration Resistance across Rows of Sugarbeet under Two Tillage Systems. In: Geophysical Research Abstracts, Vol. 12, EGU2010-1206. 2010 EGU General Assembly, May 2-5, Vienna, Austria. Cd-Rom.

  • Abou Najm, M.R., R.H. Mohtar, J.D. Jabro, W.M. Iversen, J.B. Jesiek, and E. Sanders. 2009. New Methodology for 3D visualization and Modeling of the Cracking Behavior of Soil at the Field Scale. Annual International Meeting of the American Society of Agricultural and Biological Engineers (ASABE) Reno, NV, June 20-24, 2009. Cd-Rom.

  • Jabro J.D. 2009. Calibration and Sensitivity Analyses of LEACHM Simulation Model. Agronomy Abstracts. In: Agronomy abstracts. ASA-CSSA-SSSA, November 1-5, 2009, Pittsburgh, PA. Cd-Rom.

  • Jabro J.D. and R.G. Evans. 2009. Automated Passive Capillary Lysimeters for Estimating Water Drainage in the Vadose Zone. In: Geophysical Research Abstracts, Vol. 11, EGU2009-2234. 2009 EGU General Assembly, April 19-24, Vienna, Austria. Cd-Rom.

  • Jabro, J.D., R.G. Evans, W.M. Iversen and, B.W. Stevens. 2009. Performance Evaluation of Automated Passive Capillary Sampler for Estimating Water Drainage in the Vadose Zone. Annual International Meeting of the American Society of Agricultural and Biological Engineers (ASABE) Reno, NV, June 20-24, 2009. Cd-Rom.

  • Jabro J.D., U.M. Sainju, A.W. Lenssen, and R.G. Evans. 2009. Tillage effects on Dryland Soil Physical Properties in Northeastern Montana. Agronomy Abstracts. In: Agronomy abstracts. ASA-CSSA-SSSA, November 1-5, 2009, Pittsburgh, PA. Cd-Rom.

  • Sainju, U., T. Caesar, and J. Jabro. 2009. Long-term tillage and cropping sequence influence on dryland soil aggregate-carbon dynamics. In: Geophysical Research Abstracts, Vol. 11, EGU2009-1919. 2009 EGU General Assembly, April 19-24, Vienna, Austria. Cd-Rom.

  • Stevens, W. Bart., Robert G. Evans, William M. Iversen and Jay D. Jabro, 2009. Strip Tillage and High-efficiency Spray Irrigation in a Sugarbeet-Malting barley Cropping System. Proceedings of 35th Annual Meeting of American Society of Sugar Beet Technologists, February 25-28, 2009, Orlando, Florida. No. 35, 5 p. (PDF: 70 KB)

  • Abou Najm, M., Mohtar, R., J. Jabro, J. D. Schultz, J. Weiss, W. Iversen, K. Cherkauer, and E. Braudeau. 2008. Towards a Better Understanding of the Cracking Behavior of Soils. International Hydropedology Conference, Pennsylvania State University, University Park, PA. July 28-31, 2008.

  • Abou Najm, M., Mohtar, R., Jabro, J. 2008. Characterizing Soil Cracking at the Field Scale. Proceedings of the 2008 Annual International Meeting of the American Society of Agricultural & Biological Engineers (ASABE) Providence, Rhode Island, June 29-July 2, 2008.

  • Jabro, J.D., R.G. Evans, Y. Kim and W.M. Iversen. 2008. In-situ Soil-Water Retention and Field Water Capacity Measurements in Two Contrasting Soil Textures. Proceedings of the 2008 Annual International Meeting of the American Society of Agricultural & Biological Engineers (ASABE) Providence, Rhode Island, June 29-July 2, 2008. Paper # 083753. (PDF; 133 KB)

  • Jabro, J.D., Jabro, A.D., R. Domalski. 2008. The Complexities of Discussing Soil Vapor Extraction Techniques with non-scientists. 15th International Congress of ISCO Book of Abstracts. 18-23 May 2008. Geographical Research Institute Hungarian Academy of Sciences, Budapest, Hungary.

  • Jabro, J.D., Sainju, U.M., and R.G. Evans, 2008. Long-term Tillage Frequency Effects on Dryland Soil Physical and Hydraulic Properties. 15th International Congress of ISCO Book of Abstracts. 18-23 May 2008. Geographical Research Institute Hungarian Academy of Sciences, Budapest, Hungary.

  • Jabro, J.D. B.W. Stevens, W.M. Iversen, and R.G. Evans. 2008. Tillage Depth Effects on Soil Physical Properties, Sugarbeet (Beta vulgaris L.) Yield and Quality. Agronomy Abstracts. In: Agronomy Abstracts. ASA-CSSA-SSSA, Houston, Texas, October 5-9, 2008. IN. CD-ROM.   

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Last Modified: 5/13/2013
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