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United States Department of Agriculture

Agricultural Research Service

Daniel S Long (Dan)
Research Leader


Publications (Clicking on the reprint icon Reprint Icon will take you to the publication reprint.)
A normalized difference yellowness index for modeling yield of Brassica oilseeds -
Sulik, J.J., Long, D.S. 2016. A normalized difference yellowness index for modeling yield of Brassica oilseeds. Remote Sensing of Environment. 184:161-174.
Economic feasibility of segregating dark northern spring wheat by protein concentration during harvest -
Long, D.S., Mccallum, J.D., Martin, C.T., Capalbo, S.M. 2016. Economic feasibility of segregating dark northern spring wheat by protein concentration during harvest. Agronomy Journal. 108:1-11.
Development of near-infrared spectroscopy calibrations to measure quality characteristics in intact Brassicaceae germplasm Reprint Icon -
Oblath, E.A., Isbell, T.A., Berhow, M.A., Allen, B., Archer, D., Brown, J., Gesch, R.W., Hatfield, J.L., Jabro, J.D., Kiniry, J.R., Long, D.S. 2016. Development of near-infrared spectroscopy calibrations to measure quality characteristics in intact Brassicaceae germplasm. Industrial Crops and Products. 89:52-58.
Ongoing development of dryland oilseed production systems in the northwestern region of the United States -
Long, D.S., Young, F.L., Schillinger, W.F., Reardon, C.L., Williams, J.D., Allen, B.L., Pan, W., Wysocki, D.J. 2016. Ongoing development of dryland oilseed production systems in the northwestern region of the United States. BioEnergy Research. 9:412-429.
Comparison of several Brassica species in the north central U.S. for potential jet fuel feedstock Reprint Icon -
Gesch, R.W., Isbell, T., Oblath, E.A., Allen, B.L., Archer, D.W., Brown, J., Hatfield, J.L., Jabro, J.D., Kiniry, J.R., Long, D.S., Vigil, M.F. 2015. Comparison of several Brassica species in the north central U.S. for potential jet fuel feedstock. Industrial Crops and Products. 75(B):2-7.
Spectral indices for yellow canola flowers -
Sulik, J.J., Long, D.S. 2015. Spectral indices for yellow canola flowers. International Journal of Remote Sensing. 36:2751-2765.
On-combine, multi-sensor data collection for post-harvest assessment of environmental stress in wheat -
Long, D.S., Mccallum, J.D. 2015. On-combine, multi-sensor data collection for post-harvest assessment of environmental stress in wheat. Precision Agriculture. doi: 10.1007/s11119-015-9391-z.
Partial budget analysis of variable-rate nitrogen application on dryland spring wheat -
Long, D.S., Whitmus, J.D., Engel, R., Brester, G.W. 2015. Partial budget analysis of variable-rate nitrogen application on dryland spring wheat. Agronomy Journal. 107:1055-1067.
Agronomic comparison of several brassica species in the U.S. Corn Belt as feedstock for hydrotreated jet fuel -
Gesch, R.W., Allen, B.L., Archer, D.W., Banuelos, G.S., Behrman, K.D., Brown, J., Hatfield, J.L., Jabro, J.D., Kiniry, J.R., Long, D.S., Vigil, M.F. 2014. Agronomic comparison of several brassica species in the U.S. Corn Belt as feedstock for hydrotreated jet fuel [abstract]. In: Miller, T., Alexopoulou, E. and Berti, M.T., editors. International Conference in Industrial Crops and 26th Annual Meeting of the Association for the Advancement of Industrial Crops (AAIC). Program and Abstracts. September 13-19, 2014, Athens, Greece.
Soil carbon dynamics of transition to Pacific Northwest cellulosic ethanol feedstock production Reprint Icon -
Kendall, J., Long, D.S., Collins, H.P., Pierce, F.J., Chatterjee, A., Smith, J.L., Young, S.L. 2015. Soil carbon dynamics of transition to Pacific Northwest cellulosic ethanol feedstock production. Soil Science Society of America Journal. 79:272-281.
Soil and water conservation in the Pacific Northwest through no-tillage and intensified crop rotations -
Williams, J.D., Wuest, S.B., Long, D.S. 2014. Soil and water conservation in the Pacific Northwest through no-tillage and intensified crop rotations. Journal of Soil and Water Conservation. 69(6):495-504.
Optical-mechanical system for on-combine segregation of wheat by grain protein concentration -
Long, D.S., Mccallum, J.D., Scharf, P.A. 2013. Optical-mechanical system for on-combine segregation of wheat by grain protein concentration. Agronomy Journal. 105:1529-1535.
Spring wheat production and associated pests in conventional and diversified cropping systems in north central Montana -
Lenssen, A., Long, D.S., Grey, W.E., Blodgett, S.L., Goosey, H.B. 2013. Spring wheat production and associated pests in conventional and diversified cropping systems in north central Montana. Crop Management. Available: http://works.bepress.com/andrew_lenssen/29.
A web-based calculator for estimating the profit potential of grain segregation by protein concentration Reprint Icon -
Martin, C.T., Mccallum, J.D., Long, D.S. 2013. A web-based calculator for estimating the profit potential of grain segregation by protein concentration. Agronomy Journal. 105: 721-726.
Development of HRJ fuel from Brassica in rotation with wheat for the Western U.S. -
Isbell, T., Long, D.S., Archer, D.W., Lupton, S., Gore, M.A., Jenks, M.A., Tomlinson, T., Steiner, J.J. 2012. Development of HRJ fuel from Brassica in rotation with wheat for the Western U.S. [abstract]. Association for the Advancement of Industrial Crops Conference. p. 29.
Mapping straw yield using on-combine light detection and ranging (LiDAR) -
Long, D.S., Mccallum, J.D. 2013. Mapping straw yield using on-combine light detection and ranging (LiDAR). International Journal of Remote Sensing. 34: 6127-6134.
In-stream measurement of canola (Brassica napus L.) seed oil concentration using in-line near infrared reflectance spectroscopy -
Long, D.S., McCallum, J.D., Young, F.L., Lenssen, A. 2012. In-stream measurement of canola (Brassica napus L.) seed oil concentration using in-line near infrared reflectance spectroscopy. Journal of Near Infrared Spectroscopy. 20(3):387-395.
Switchgrass influences soil biogeochemical processes in dryland region of the Pacific Northwest -
Chatterjee, A., Long, D.S. 2013. Switchgrass influences soil biogeochemical processes in dryland region of the Pacific Northwest. Communications in Soil Science and Plant Analysis. 44:2314-2326.
Effect of planting methods on spring canola (Brassica napus L.) establishment and yield in the low-rainfall region of the Pacific Northwest Reprint Icon -
Young, F.L., Long, D.S., Alldredge, J.R. 2012. Effect of planting methods on spring canola (Brassica napus L.) establishment and yield in the low-rainfall region of the Pacific Northwest. Crop Management. doi:10.1094/CM-2012-0321-01-RS.
Capture of Plateau Runoff by GPS Guided Drill Seed Operation -
Williams, J.D., Long, D.S., Wuest, S.B. 2012. Capture of Plateau Runoff by GPS Guided Seed Drill Operation. Journal of Soil and Water Conservation. 66(6):355-361.
Early season remote sensing of wheat nitrogen status using a green scanning laser -
Eitel, J.U., Vierling, L., Long, D.S., Hunt Jr, E.R. 2011. Early season remote sensing of wheat nitrogen status using a green scanning laser. Agricultural and Forest Meteorology. 151:1338-1345.
Remote Sensing of Chlorophyll Content at Leaf and Canopy Scales using a Visible Band Index -
Hunt, E.R., Daughtry, C.S., Long, D.S., Eitel, J.U. 2011. Remote sensing of chlorophyll content at leaf and canopy scales using a visible band index. Agronomy Journal. 103:1090-1099.
Simple assessment of needleleaf and broadleaf chlorophyll content using a flatbed color scanner -
Eitel, J.U., Vierling, L., Long, D.S., Litvak, M., Eitel, K.C. 2011. Simple assessment of needleleaf and broadleaf chlorophyll content using a flatbed color scanner. Canadian Journal of Forest Research. 41:1445-1451.
Intensive crop rotation yield and economic performance in minimum tillage and no-tillage, in northeastern Oregon -
Williams, J.D., Long, D.S. 2011. Intensive crop rotation yield and economic performance in minimum tillage and no-tillage, in northeastern Oregon. Crop Management. Available: http://plantmanagementnetwork.org/cm/element/sum2.aspx?id=9430
Narrow-width harvester for switchgrass and other bioenergy crops in experimental plots -
Long, D.S., Scharf, P.A., Pierce, F.J. 2011. Narrow-width harvester for switchgrass and other bioenergy crops in experimental plots. Agronomy Journal. 103:780-785.
Evaluation of methods to determine residual soil nitrate zones across the northern Great Plains of the USA -
Franzen, D., Long, D.S., Sims, A., Lamb, J., Casey, F., Staricka, J., Halvorson, M., Hofman, V. 2011. Evaluation of methods to determine residual soil nitrate zones across the northern Great Plains of the USA. Precision Agriculture. 12:594-606.
Remote sensing of leaf chlorophyll content at multiple scales using red, green and blue bands -
Hunt, E.R., Long, D.S., Eitel, J.U., Daughtry, C.S. 2010. Remote sensing of leaf chlorophyll content at multiple scales using red, green and blue bands. In: Proceedings of International Society of Optical Engineering, August 1-5, 2010, San Diego, California. Paper No. 7809-1.
Computing wheat nitrogen requirements from grain yield and protein maps -
Long, D.S., Engel, R. 2011. Computing wheat nitrogen requirements from grain yield and protein maps. In: Clay, D.E., Shanahan, J.F., editors. GIS applications in agriculture. 2:321-335.
Computing wheat nitrogen requirements from grain yield and protein maps -
Long, D.S., Engel, R.E. 2011. Computing wheat nitrogen requirements from grain yield and protein maps. In: Clay, D.E., Shanahan, J.F., editors. GIS applications in agriculture. Vol 2. Boca Raton, FL: CRC Press. p. 321-335.
Nitrogen and Water Stress Impacts Hard Red Spring Wheat (Triticum aestivum) Canopy Reflectance -
Reece, C.L., Long, D.S., Clay, S.A., Clay, D.E., Beck, D. 2010. Nitrogen and Water Stress Impacts Hard Red Spring Wheat (Triticum aestivum) Canopy Reflectance. Journal of Terrestrial Observation. 2(1):Article 7. Available:http://docs.lib.purdue.edu/jto/vol2/iss1/art7.
Simultaneous measurements of plant structure and chlorophyll content in broadleaf saplings with a terrestrial laser scanner -
Eitel, J.U., Vierling, L., Long, D.S. 2010. Simultaneous measurements of plant structure and chlorophyll content in broadleaf saplings with a terrestrial laser scanner. Remote Sensing of Environment. 114:2229-2237.
Remote of leaf chlorophyll content at multiple scales using red, green and blue sensing bands -
Hunt, E.R., Long, D.S., Eitel, J.U., Daughtry, C.S. 2010. Remote of leaf chlorophyll content at multiple scales using red, green and blue sensing bands [abstract]. Proceedings of SPIE Optics and Photonics. 2010 CDROM.
Active Ground Optical Remote Sensing for Improved Monitoring of Seedling Stress in Nurseries -
Eitel, J.U., Keefe, R., Long, D.S., Davis, A., Vierling, L. 2010. Active Ground Optical Remote Sensing for Improved Monitoring of Seedling Stress in Nurseries. Sensors. 10(4):2843-2850. Available: http://www.mdpi.com/journal/sensors.
Contour Planting: A Strategy to Reduce Soil Erosion on Steep Slopes -
Long, D.S., Wuest, S.B., Williams, J.D., Rauwendall, R., Bailey, M.J. 2010. Contour Planting: A Strategy to Reduce Soil Erosion on Steep Slopes. In R. Khosla (ed.) 10th International Conference on Precision Agriculture Abstracts & Proceedings.
On-combine Sensing Technique for Mapping Straw Yield within Wheat Fields -
Long, D.S., Mccallum, J.D., Huggins, D.R. 2010. On-combine Sensing Technique for Mapping Straw Yield within Wheat Fields. In R. Khosla (ed.) 10th International Conference on Precision Agriculture Abstracts & Proceedings.
Assessing Nitrogen Status of Dryland Wheat Using the Canopy Chlorophyll Content Index -
Long, D.S., Eitel, J.U., Huggins, D.R. 2009. Assessing Nitrogen Status of Dryland Wheat Using the Canopy Chlorophyll Content Index. Crop Management [Online]. Available: http://www.plantmanagementnetwork.org/cm/element/sum2.aspx?id=8617
Remote sensing chlorophyll content of leaves and canopies using red, green and blue wavebands -
Hunt, E.R., Daughtry, C.S., Eitel, J.U., Long, D.S. 2009. Remote sensing chlorophyll content of leaves and canopies using red, green and blue wavebands [abstract]. American Society of Agronomy. 2009 CDROM.
Sensitivity of Ground-Based Remote Sensing Estimates of Wheat Chlorophyll Content to Variation in Soil Reflectance -
Eitel, J.U., Long, D.S., Gessler, P.E., Hunt, E.R., Brown, D.J. 2009. Sensitivity of Ground-Based Remote Sensing Estimates of Wheat Chlorophyll Content to Variation in Soil Reflectance. Soil Science Society of America Journal. 73:1715-1723
A spectral index to monitor the head-emergence of wheat in semi-arid conditions -
Pimstein, A., Eitel, J.U., Long, D.S., Mufradi, I., Karnieli, A., Bonfil, D.J. 2009. A spectral index to monitor the head-emergence of wheat in semi-arid conditions. Field Crops Research. 111:218-225.
Nitrogen Mineralization in a Semiarid Silt Loam Soil in the Pacific Northwest -
Albrecht, S.L. and D.S. Long. 2008 Nitrogen Mineralization in a Semiarid Silt Loam Soil in the Pacific Northwest. Abstracts. 2008 Annual Meeting. American Society of Agronomy, Oct. 5-9, 2008. ASA, Madison, WI. CR ROM & http://a-c-s.confex.com/crops/2008am/webprogram/start.html
COMPARISON OF RUNOFF AND SOIL EROSION FROM NO-TILL AND INVERSION TILLAGE PRODUCTION SYSTEMS -
Wuest, S.B., Williams, J.D., Gollany, H.T., Siemens, M.C., Long, D.S. 2008. Comparison of runoff and soil erosion from no-till and inversion tillage production systems. Columbia Basin Agricultural Research Annual Report.
COMPARISON OF RUNOFF, SOIL EROSION, AND WINTER WHEAT YIELDS FROM NO-TILL AND INVERSION TILLAGE PRODUCTION SYSTEMS IN NORTHEASTERN OREGON -
Williams, J.D., Gollany, H.T., Siemens, M.C., Wuest, S.B., Long, D.S. 2009. COMPARISON OF RUNOFF, SOIL EROSION, AND WINTER WHEAT YIELDS FROM NO-TILL AND INVERSION TILLAGE PRODUCTION SYSTEMS IN NORTHEASTERN OREGON. Journal of Soil and Water Conservation 64(1):42-53.
Combined Spectral Index to Improve Ground-Based Estimates of Nitrogen Status in Dryland Wheat -
Eitel, J.U.H., D.S. Long, P.E. Gessler, E.R. Hunt. 2008. Combined Spectral Index to Improve Ground-Based Estimates of Nitrogen Status in Dryland Wheat. Agronomy Journal. 100:1694-1702.
Evaluation of Multispectral Based Radiative Transfer Model Inversion to Estimate Leaf Area Index in Wheat -
Eitel, J.U., Long, D.S., Gessler, P.E. 2007. Evaluation of Multispectral Based Radiative Transfer Model Inversion to Estimate Leaf Area Index in Wheat. Agronomy Abstracts.
MEASURING GRAIN PROTEIN CONCENTRATION WITH IN-LINE NEAR INFRARED REFLECTANCE SPECTROSCOPY -
Long, D.S., Engel, R.E., and Siemens, M.C. 2008. Measuring Grain Protein Concentration with In-line Near Infrared Reflectance Spectroscopy. Agron.J. 100:247-252.
USING IN-SITU MEASUREMENTS TO EVALUATE NEW RAPIDEYE SATELLITE SERIES FOR PREDICTION OF WHEAT NITROGEN STATUS -
Eitel, J.H., Long, D.S., Gessler, P.E., Smith, A.S. 2007. Using in-situ measurements to evaluate new rapideye satellite series for prediction of wheat nitrogen status. International Journal of Remote Sensing. Vol. 28, No. 18:4183-4190.
PRECISION FARMING FOR NITROGEN MANAGEMENT -
Long, D.S., Pierce, F.J. 2010. PRECISION FARMING FOR NITROGEN MANAGEMENT. Soil and Water Conservation Society. pp 184-205.
ON-COMBINE SENSING OF GRAIN PROTEIN CONCENTRATION IN SOFT WHITE WINTER WHEAT -
Long, D.S., Baker, A.A. 2006. On-combine sensing of grain protein concentration in soft white winter wheat. Dryland Agricultural Research Annual Report. Oregon Agric. Exp. Sta. Special Report 1068.
YIELD COMPARISON AND ECONOMIC ANALYSIS OF CONVENTIONAL AND DIRECT-SEED CROPPING SYSTEMS AT PENDLETON -
Petrie, S., Albrecht, S.L., Long, D.S. 2006. Yield comparison and economic analysis of conventional and direct-seed cropping systems at Pendleton. Dryland Agricultural Research Annual Report. Oregon Agric. Exp. Sta. Special Report 1068.
GRAIN PROTEIN AS A POST-HARVEST INDEX OF NITROGEN STATUS FOR WINTER WHEAT IN THE NORTHERN GREAT PLAINS -
Engel, R.E., Long, D.S., Carlson, G.R. 2006. Grain protein as a post-harvest index of nitrogen status for winter wheat in the northern Great Plains. Canadian Journal of Crop Science 86(2):425-431.
ECONOMIC ANALYSIS OF A DIRECT SEED CROPPING SYSTEM IN THE PACIFIC NORTHWEST -
Petrie, S., Albrecht, S.L., Long, D.S. 2005. Economic analysis of a direct seed cropping system in the pacific northwest. Agronomy Abstracts. American Society of Agronomy. Madison, WI. CDROM.
WINTER WHEAT RESPONSES TO NITROGEN FERTILIZATION IN A DIRECT-SEED, SUMMER-FALLOW MANAGEMENT SYSTEM -
Albrecht, S.L., Long, D.S. 2005. Winter wheat responses to nitrogen fertilization in a direct-seed, summer-fallow management system. Agronomy Abstracts. Agronomy Society of America. CD ROM.
EVALUATING VARIABILITY OF SOIL WATER IN HUMMOCKY GLACIATED LANDSCAPES OF NORTHERN MONTANA -
Long, D.S., Kozar, B.J., Wraith, J.R. 2005. Evaluating variability of soil water in hummocky glaciated landscapes of northern Montana. Agronomy Abstracts. American Society of Agronomy. Madison, WI. CDROM
IMPROVING WHEAT QUALITY CONSISTENCY BY DENSITY SEGREGATION -
Siemens, M.C., and Long, D.S. 2005. Improving wheat quality consistency by density segregation. ASAE paper No. 05-1028, 1p. St. Joseph, Mich.: ASAE.
WINTER WHEAT RESPONSES TO NITROGEN FERTILIZATION IN A DIRECT-SEED, SUMMER-FALLOW MANAGEMENT SYSTEM -
Albrecht, S.L., Skirvin, K.W., Long, D.S. 2005. Winter wheat responses to nitrogen fertilization in a direct-seed, summer-fallow management system. pp. 87-91. In 2005 Dryland Agricultural Research Annual Report. D.A. Long, S.E. Petrie, and P.M. Frank, eds. SR 1061. Corvallis, OR: Oregon State University Agric. Exp. Station in cooperation with USDA-ARS, Pendleton, OR.
ON-COMBINE SENSING AND MAPPING OF WHEAT PROTEIN CONCENTRATION -
Long, D.S., Engel, R.E., Carpenter, F.M. 2005. On-combine sensing and mapping of wheat protein concentration. Crop Management [on-line]. Available: http://www.plantmanagementnetwork.org/cm/element/cmsum2.asp?id=4841.
SPATIALLY CHARACTERIZING APPARENT ELECTRICAL CONDUCTIVITY AND WATER CONTENT OF SURFACE SOILS WITH TIME DOMAIN REFLECTOMETRY -
Wraith, J.M., Robinson, D.A., Jones, S.B., Long, D.S. 2005. Spatially characterizing apparent electrical conductivity and water content of surface soils with time domain reflectometry. Computers and Electronics in Agriculture.
CAN NEW OPTICAL SENSORS HELP GROWERS BETTER MANAGE WHEAT AND ENHANCE GRAIN VALUE? -
Long, D.S. 2004. Can new optical sensors help growers better manage wheat and enhance grain value? Oregon Wheat.
USING STABLE ISOTOPES AND CROP REFLECTANCE TO CHARACTERIZE WATER AND NITROGEN STRESS IN HARD RED WINTER WHEAT -
Reese, C.L., Clay, D.E., Beck, D., Long, D.S. 2004. Using stable isotopes and crop reflectance to characterize water and nitrogen stress in hard red winter wheat. Agronomy Abstracts.
PREDICTING IN-SEASON NITROGEN STATUS OF HARD RED SPRING WHEAT USING MULTISPECTRAL SATELLITE IMAGERY -
Long, D.S., Westcott, M.P., Whitmus, J.D. 2004. Predicting in-season nitrogen status of hard red spring wheat using multispectral satellite imagery. Agronomy Abstracts.
ON-COMBINE SENSING OF GRAIN PROTEIN CONCENTRATION -
Last Modified: 8/26/2016
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