10/28/2003

PUBLICATIONS:

Arizona



Kostrzewski M., P. Waller, P. Guertin, J. Haberland, P. Colaizzi, E. Barnes, T. Thompson, T. Clarke, E. Riley, C. Choi. 2002. Ground-Based Remote Sensing of Water and Nitrogen Stress. (to be published in ASAE Transactions. Vol 45(6)).



Colaizzi, P.D., Barnes, E.M., Clarke, T.R., Choi, C.Y., and Waller, P.M. 2002. ?Estimating soil moisture under low frequence under low frequency irrigation.? ASCE Journal of Irri-gation and Drainage Engineering (in press).



Colaizzi, P.D., Barnes, E.M., Clarke, T.R., Choi, C.Y., and Waller, P.M. 2002. ?Water Stress Detection under High Frequency Irrigation.? ASCE Journal of Irrigation and Drainage Engineering (in press).

California



Heidman, B. C. , A.Z. Abidine, S. K. Upadhyaya, and D. H. Hills. 2002. Application of RTK GPS based auto-Guidance System in Agricultural production. Proceedings of the Sixth International Conference in Precision Agriculture, July 14-17, Minneapolis, MN. (In Press).



Andrade, P., S. K. Upadhyaya, and B. Jenkins. Development of a Compaction Profile sensor. July 14-17, Proceedings of the Sixth International Conference in Precision Agriculture, Minneapolis, MN. (In Press).



Rosa, U. A, S. K. Upadhyaya, P. Brown, and N. Bellallouri. 2002. Development of an Elec-tronic Weigh Bucket. ASAE Paper. 021049. ASAE, St. Joseph, MI 49085.



Andrade, P., S. K. Upadhyaya, B. Jenkins, and A.G.S. Filho. 2002. Evaluation of UC Davis Compaction Profile Sensor. ASAE Paper. 021185. ASAE, St. Joseph, MI 49085.



Iowa



Farahbakhshazad, N., Mclaughlin, D., Dinnes, D.L., Jaynes, D.B., and Li, C. 2002. A site-specific evaluation of a crop-denitrification/decomposition model based upon a US Mid-western row-crop field. 6th Int. Conf. on Precision Agriculture. Minneapolis, MN July 14-17, 2002.



Jaynes, D.B., Kaspar, T.C., and Colvin, T.S. 2002. Comparison of techniques for defining yield potential zones in an Iowa field. Proc. 6th Intl. Conf. on Precision Agric. Minneapolis, MN July 14-17, 2002.



Illinois



Bajwa, S.G., L. Tian. 2002. Multispectral CIR image calibration for cloud shadow and soil background influence using intensity normalization. Applied Engineering in Agriculture. Vol. 18 (5): 627-635.



Steward, B., L. Tian, L. Tang. 2002. Distance-based control system for machine vision-based selective spraying. Transactions of ASAE. Vol. 45(5) 1255-1262.



Tian, L. 2002. Sensor-based precision chemical application system. Journal of Computers and Electronics in Agriculture. Vol. 36 (2-3): 133-149.



Yao, H. L. Tian, L. Tang, K. Thorp. 2002. Corn Canopy Reflectance Study With A Real-Time High-Density Spectral-Image Mapping System. ASAE Paper number 023144, St. Joseph, MI.



Thorp, K., Tian, L.. 2002. Development of Vegetation Indices for Hyperspectral Data. ASAE Paper number 021077. St. Joseph, MI.



Yao, H. L. Tian, K. Thorp. 2002. Hyperspectral Imagery for Various Crop Growth Information Extraction. ASAE Paper number 021076, St. Joseph, MI.



Kaleita, A., L. Tian. 2002. Remote Sensing Of Site-Specific Soil Characteristics for Precision Farming. ASAE Paper number 021078, St. Joseph, MI.



Singh, M., M, R. Paulsen, L. Tian, H. Yao. 2002. Site-Specific Study of Corn Protein, Oil, and Extractable Starch Variability using NIT Spectroscopy. ASAE Paper number 021111. St. Joseph, MI.



Tang, L. 2002. Machine vision systems for real-time plant variability sensing and in-field application. Ph.D. dissertation, L. Tian, advisor.



Indiana



Blumhoff, Greg K. "The Order 1 Soil Survey: Getting It Ready to Use," SSMC Newsletter, January, 2002.



Lowenberg-DeBoer, J. "Liability Problems for Autonomous Equipment?? SSMC Newsletter, February, 2002.



Blumhoff, Greg K. "Introduction to the Nuts and Bolts of Directed Crop Scouting With Remotely Sensed Data," SSMC Newsletter, March, 2002.



Blumhoff, Greg K. "A Comparison of Directed Crop Scouting and Traditional Sampling" SSMC Newsletter, April, 2002.



Colonna, Ignacio. "Comparison of Organic Matter Interpolated Maps from 0.5 and 2.5 Acre Grids Using Geostatistics," SSMC Newsletter, May, 2002.



Lowenberg-DeBoer, J. "Blocks vs. Strips for On-Farm Experimentation," SSMC Newsletter, June, 2002.



Blumhoff, Greg, and Chris Johannsen, ?Perspectives on the Application of Remote Sensing for Site-Specific Management,? SSMC Newsletter, July, 2002.



Mercuri, Pablo, ?Agricultural Terrain Analysis Using Remote Sensing Derived Elevations,? SSMC Newsletter, August, 2002.



Lowenberg-DeBoer, J., ?Zero Rates in Site-Specific On-Farm Trials,? SSMC Newsletter, September, 2002.



Lowenberg-DeBoer, J. and Rodolfo Bongiovanni, ?The Status of Site-Specific Crop Response,? SSMC Newsletter, October, 2002.



Urcola, Hernan, and J. Lowenberg-DeBoer, ?What questions should be asked about Yield Monitor Use for Hybrid and Variety Selection?? SSMC Newsletter, November, 2002.



Lowenberg-DeBoer, J., ?Will Farmers Chose Precision Farming or Convenience Agriculture?? SSMC Newsletter, December, 2002.



Adamchuk, V.I., M.T. Morgan and D.R. Ess. 03/12/02. System and method for automated measurement of soil pH. U.S. Patent #6,356,830.



Brouder, S.M., M. Thom, V.I. Adamchuk and M.T. Morgan. Potential uses of ion-selective K electrodes in soil fertility management. Comm. Soil Sci. Plan Anal. (in press)



Adamchuk, V.I., M.T. Morgan, and J. M. Lowenberg-DeBoer. A Model for Agro-Economic Analysis of Soil pH Mapping. Precision Agriculture.(accepted)



Ess, D.R., S. Fountas, J. Lowenberg-DeBoer, S.E. Hawkins, and S. B. Blackmore. Information source preferences in precision agriculture. ASA Abstracts 2003, Indianapolis, IN, Nov. 10-15, 2002.



S. Fountas, S.E. Hawkins, D.R. Ess, and S. B. Blackmore. Farm management decision analysis. ASA Abstracts 2003, Indianapolis, IN, Nov. 10-15, 2002.



S. Fountas, D.R. Ess, S.E. Hawkins, and S. B. Blackmore. Precision agriculture information systems. ASA Abstracts 2003, Indianapolis, IN, Nov. 10-15, 2002.



Ess, D.R., S. Fountas, J. Lowenberg-DeBoer, S.E. Hawkins, and S. B. Blackmore. Information source preferences in precision agriculture. ASA Abstracts 2003, Indianapolis, IN, Nov. 10-15, 2002.



S. Fountas, S.E. Hawkins, D.R. Ess, and S. B. Blackmore. Farm management decision analysis. ASA Abstracts 2003, Indianapolis, IN, Nov. 10-15, 2002.



S. Fountas, D.R. Ess, S.E. Hawkins, and S. B. Blackmore. Precision agriculture information systems. ASA Abstracts 2003, Indianapolis, IN, Nov. 10-15, 2002.



Bullock, David, J. Lowenberg-DeBoer and Scott Swinton, ?Adding Value to Spatially Man-aged Inputs by Understanding Site-Specific Yield Response?, Agricultural Economics 27(2002) p. 233-245.



Lambert, D.; Lowenberg-DeBoer, J.; and R. Bongiovanni. 2002. ?Spatial Regression, an Alternative Statistical Analysis for Landscape Scale On-farm trials: Case Study of Variable Rate N Application in Argentina.? Proceedings of the 6th International Conference on Precision Agriculture. Minneapolis, MN.



Bongiovanni, Rodolfo, and J. Lowenberg-DeBoer, "Economics of Nitrogen Response Vari-ability over Space and Time: Results from the 1999-2001 Field Trials in Argentina," Pro-ceedings of the 6th International Precision Agriculture Conference, Minneapolis, MN, 2002



Bongiovanni, R., and J. Lowenberg-DeBoer. 2001. ?Precision Agriculture and Sustainability.? VII Congreso de Maíz, Pergamino, Argentina. November 7-9, 2001. http://www.agriculturadeprecision.org/ingles/indice.htm.



Lowenberg-DeBoer, J. and Harold Reetz, ?Phosphorous and Potassium Economics for the 21st Century,? Better Crops, Vol. 86 (2002, No. 1), p. 4-8.



Lowenberg-DeBoer, J., ?Economics of Site-Specific Management in Agronomic Crops?, XXIV Congresso Nacional de Milho e Sorgo, Florianopolis, SC, Brazil, September 2002.



Bongiovanni, Rodolfo, ?A Spatial Econometric Approach to the Economics of Site-Specific Nitrogen Management in Corn Production,? PhD Dissertation, Department of Agricul-tural Economics, Purdue University, West Lafayette, IN, 2002.



Whipker, Linda, and Jay Akridge, ?Precision Agricultural Services: Dealership Survey Results.? Staff Paper No. 02-02, Center for Food and Agricultural Business, Purdue Univer-sity, West Lafayette, IN, USA, June, 2002. (www.purdue.edu/ssmc, click on publications and scroll down).



Kansas



Taylor, R. K., G. J. Kluitenberg, M. D. Schrock, N. Zhang, J. P. Schmidt, and J. L. Havlin. 2001. Using yield monitor data to determine spatial crop production potential. Trans. ASAE 44:1409-1414.



Wu, J., M. D. Ransom, M. D. Nellis, G. J. Kluitenberg, H. L. Seyler, and B. C. Rundquist. 2002. Using GIS to assess and manage the conservation reserve program in Finney County, Kansas. Photogrammetric Engineering & Remote Sensing 68:735-744.



Nivens, H., T. Kastens, K. Dhuyvetter, and A. Featherstone. ?Using Satellite Imagery in Predicting Kansas Farm Land Values.? Journal of Agricultural and Resource Economics. 27,2:(December 2002):464-480.



Kastens, T.L., J.P. Schmidt, and K.C. Dhuyvetter. ?Yield Models Implied by Traditional Fertilizer Recommendations and a Framework for Including Non-traditional Informa-tion.? Soil Science Society of America Journal. 67,1:(January-February 2003):??-??.



Kastens, T.L., K.C. Dhuyvetter, and J.P. Schmidt. ?Combining Farm and University/Industry Information in Yield Models for Optimal Fertilizer Decisions.? Paper was presented by Kastens and published in the proceedings of the Sixth International Confer-ence on Precision Agriculture. Minneapolis, Minnesota. July 14-17, 2002.



Kastens, T.L., J.P. Schmidt, and K.C. Dhuyvetter. ?Yield Response Implied by Fertilizer Recommendations.? Paper was presented by Kastens and published in the proceedings of the 2002 Great Plains Soil Fertility Conference, Denver, Colorado, March 5-6, 2002. pp 53-60.



Staggenborg, S.A., and R.K. Taylor. 2002. A procedure to normlize soil EC across time and Space. Proceedings to the 6th International Conference on Precision Agriculture. July 14-17, 2002. Minneapolis, MN. In-Press.



Nathan E. Isaac, Randal K. Taylor, Scott A. Staggenborg, Mark D. Schrock, Dale Leikam. 2002. Using Cone Index Data to Explain In Field Yield Variation. 2002 ASAE Annual Meeting. Paper number 021094. ASAE. St. Joseph, MI.



Randal K. Taylor, Kevin C. Dhuyvetter, Terry L. Kastens, Scott A. Staggenborg. 2002. Using GPS Technology to Evaluate Combine Performance. 2002 ASAE Annual Meeting. Paper number 02194. ASAE. St. Joseph, MI.



Michigan



Swinton, S.M., Y. Liu and N.R. Miller 2002. ?Is Yield Response Site-specific? Revisiting Nitrogen Recommendations on Corn.? Selected Paper, American Agricultural Econom-ics Association annual meeting, Long Beach, CA, July 28-31, 2002.



Swinton, S.M., Y. Liu, N.R. Miller, A.N. Kravchenko, and C.A.M. Laboski 2002. ?Corn Yield Response to Nitrogen: Does It Vary Site-specifically?? Paper presented at the 6th International Conference on Precision Agriculture and Other Precision Resources Management. Minneapolis, July 14-17, 2002



Swinton, S.M., K.Q. Jones, R. Brook, N. Miller, O. Schabenberger, and D. Warncke 2002. ?Site-specific versus Whole-field Fertility and Lime Management in Michigan Soybeans and Corn.? Paper presented at the 6th International Conference on Precision Agriculture and Other Precision Resources Management. Minneapolis, July 14-17, 2002. (Issued as Staff Paper 2002-16).



Miller, N.R., A.N. Kravchenko, and S.M. Swinton 2002. ?Accuracy of Soil Sampling Methods and Implications for Fertility Management and Crop Production in Michigan.? Pres-entation at the 6th International Conference on Precision Agriculture and Other Precision Resources Management. Minneapolis, July 14-17, 2002.



Kravchenko, A.N., K. D. Thelen, D.G. Bullock, and N. R. Miller. 2003. Relationship between crop grain yield, topography and soil EC studied with cross-correlograms. In review.

08/24/2004

Arizona

Kostrzewski M., P. Waller, P. Guertin, J. Haberland, P. Colaizzi, E. Barnes, T. Thompson, T. Clarke, E. Riley, C. Choi. 2002. Ground-Based Remote Sensing of Water and Nitrogen Stress. (to be published in ASAE Transactions. Vol 45(6)).

Colaizzi, P.D., Barnes, E.M., Clarke, T.R., Choi, C.Y., and Waller, P.M. 2002. Estimating soil moisture under low frequence under low frequency irrigation. ASCE Journal of Irrigation and Drainage Engineering (in press).

Colaizzi, P.D., Barnes, E.M., Clarke, T.R., Choi, C.Y., and Waller, P.M. 2002. Water Stress Detection under High Frequency Irrigation. ASCE Journal of Irrigation and Drainage Engineering (in press).

Arkansas

S. S. Kulkarni, S. G. Bajwa, G. Huitink, M. Crow, and W. H. Baker. 2004. Modeling soil compaction with soil electrical conductivity and yield for cotton. In. Proc. 2004 Beltwide Cotton Producers National Research Conferences, January 5-9, San Antonio, TX.

Bajwa, S. G., P. Bajcsy, P. Grove, and L. F. Tian. 2003. Hyperspectral image data mining for band selection in agricultural applications. Manuscript #IET697. Transactions of the ASAE (Accepted).

Bajwa, S. G., Mason, J. M., and Rupe, J. 2003. Remote sensing for agricultural crop stress monitoring and diagnosis. In. Proc. of 30th International Symposium on Remote Sensing of Environment, November 10-14, 2003, Honolulu, Hawai.

Bajwa, S. G., J. M. Mason, and R. Norman. 2003. High-resolution optical sensing of rice nitrogen. 2003 ASAE annual international meeting, July 27-30, 2003, Las Vegas, NV.

Mason, J. M., S. G. Bajwa, and J. Rupe. 2003. Discrimination between soybean stresses using hyperspectral reflectance data. 2003 ASAE annual international meeting, July 27-30, 2003, Las Vegas, NV.

A. Mishra, S. G. Bajwa, and R. Norman. 2003. Remote sensing for rice nitrogen estimation and management. Arkansas Precision Agriculture Newsletter, Issue 2.

Jayroe, C. W., A. B. Greenwalt, W. H. Baker, R. D. Cartwright, H. S. Stiles, and B. K. Greenwalt. 2003. Managing sheath blight in rice with aerial imagery. Arkansas Precision Agriculture Newsletter, Issue 2.

California

Heidman, B. C. , A.Z. Abidine, S. K. Upadhyaya, and D. H. Hills. 2002. Application of RTK GPS based auto-Guidance System in Agricultural production. Proceedings of the Sixth International Conference in Precision Agriculture, July 14-17, Minneapolis, MN. (In Press).

Andrade, P., S. K. Upadhyaya, and B. Jenkins. Development of a Compaction Profile sensor. July 14-17, Proceedings of the Sixth International Conference in Precision Agriculture, Minneapolis, MN. (In Press).

Rosa, U. A, S. K. Upadhyaya, P. Brown, and N. Bellallouri. 2002. Development of an Electronic Weigh Bucket. ASAE Paper. 021049. ASAE, St. Joseph, MI 49085.
Andrade, P., S. K. Upadhyaya, B. Jenkins, and A.G.S. Filho. 2002. Evaluation of UC Davis Compaction Profile Sensor. ASAE Paper. 021185. ASAE, St. Joseph, MI 49085.

Iowa

Farahbakhshazad, N., Mclaughlin, D., Dinnes, D.L., Jaynes, D.B., and Li, C. 2002. A site-specific evaluation of a crop-denitrification/decomposition model based upon a US Midwestern row-crop field. 6th Int. Conf. on Precision Agriculture. Minneapolis, MN July 14-17, 2002.

Jaynes, D.B., Kaspar, T.C., and Colvin, T.S. 2002. Comparison of techniques for defining yield potential zones in an Iowa field. Proc. 6th Intl. Conf. on Precision Agric. Minneapolis, MN July 14-17, 2002.

Illinois

Kravchenko, A.N. , K. Thelen, D.G. Bullock, and N. R. Miller. 2003. Relationship Between Crop Grain Yield, Topography and Soil EC Studied With Cross-Correlograms. Agronomy Journal. 95:1132-1139.

Officer, S.J., A.Kravchenko, G.A. Bollero, K.A. Sudduth, N. Kitchen, W.J. Wiebold, H.L. Palm and D.G. Bullock. 2003 Relationships between soil bulk electrical conductivity and the principal component analysis of topography and soil fertility values. Plant and Soil. Accepted.

Omonode, R.A., D.G. Bullock, G.A. Bollero, R.G. Darmody, and F.W. Simmons. 2004.Factors of Spatial Variability in The Loess-Covered Soils of Illinois Using Multivariate and Geostatistical Techniques. Agronomy Journal. In Review.

Sudduth, K.A., N.R. Kitchen, G.A. Bollero and D.G. Bullock. 2003. Comparison of Electromagnetic Induction and Direct Sensing of Soil Electrical Conductivity. Agron. J. 95:472-482.

Indiana

Whipker, L.D. and J. T. Akridge. 2003. Precision Agricultural Services Dealership Survey Results. Purdue University, Department of Agricultural Economics, Staff Paper Nol 3-10.

Fountas, S., D.R. Ess, C.G. Sorensen, S.E.Hawkins, H.H. Pedersen, B.S. Blackmore and J. Lowenberg-DeBoer. Information Sources in Precision Agriculture in Denmark and the USA, in J. Stafford and W. Wener, eds., Precision Agriculture, Wageningen Publishers, Wageningen, Netherlands. 2003, pp. 211-216.

Lowenberg-DeBoer, J., D. Lambert and R. Bongiovanni. Appropriate On-Farm Trial Design for Precision Farming, in J. Stafford and W. Wener, eds., Precision Agriculture, Wageningen Publishers, Wageningen, Netherlands. 2003, pp. 361-366.

Brock, A., S. Brouder, G. Blumhoff and B. Hofmann. 2003. Approaches to Variable Rate Nitrogen Management in the Eastern Corn Belt. Agronomy Abstracts.

Kansas

Taylor, R. K., G. J. Kluitenberg, M. D. Schrock, N. Zhang, J. P. Schmidt, and J. L. Havlin. 2001. Using yield monitor data to determine spatial crop production potential. Trans. ASAE 44:1409-1414.

Wu, J., M. D. Ransom, M. D. Nellis, G. J. Kluitenberg, H. L. Seyler, and B. C. Rundquist. 2002. Using GIS to assess and manage the conservation reserve program in Finney County, Kansas. Photogrammetric Engineering & Remote Sensing 68:735-744.

Nivens, H., T. Kastens, K. Dhuyvetter, and A. Featherstone. ?Using Satellite Imagery in Predicting Kansas Farm Land Values.? Journal of Agricultural and Resource Economics. 27,2:(December 2002):464-480.

Kastens, T.L., J.P. Schmidt, and K.C. Dhuyvetter. ?Yield Models Implied by Traditional Fertilizer Recommendations and a Framework for Including Non-traditional Information.? Soil Science Society of America Journal. 67,1:(January-February 2003):??-??.

Kastens, T.L., K.C. Dhuyvetter, and J.P. Schmidt. ?Combining Farm and University/Industry Information in Yield Models for Optimal Fertilizer Decisions.? Paper was presented by Kastens and published in the proceedings of the Sixth International Conference on Precision Agriculture. Minneapolis, Minnesota. July 14-17, 2002.

Kastens, T.L., J.P. Schmidt, and K.C. Dhuyvetter. ?Yield Response Implied by Fertilizer Recommendations.? Paper was presented by Kastens and published in the proceedings of the 2002 Great Plains Soil Fertility Conference, Denver, Colorado, March 5-6, 2002. pp 53-60.

Staggenborg, S.A., and R.K. Taylor. 2002. A procedure to normlize soil EC across time and Space. Proceedings to the 6th International Conference on Precision Agriculture. July 14-17, 2002. Minneapolis, MN. In-Press.

Nathan E. Isaac, Randal K. Taylor, Scott A. Staggenborg, Mark D. Schrock, Dale Leikam. 2002. Using Cone Index Data to Explain In Field Yield Variation. 2002 ASAE Annual Meeting. Paper number 021094. ASAE. St. Joseph, MI.
Randal K. Taylor, Kevin C. Dhuyvetter, Terry L. Kastens, Scott A. Staggenborg. 2002. Using GPS Technology to Evaluate Combine Performance. 2002 ASAE Annual Meeting. Paper number 02194. ASAE. St. Joseph, MI.

Michigan

P. Jiang, and K.D. Thelen. 2004. Effect of Soil and Topographic Properties on Crop Yield in a North Central Corn Soybean Cropping System. Agron. J. In Press.

Thelen, K.D., A.N. Kravchenko, and, C.D. Lee. 2004. Utility of Optical Remote Sensing for Detecting Herbicide Injury in Soybean. Weed Technol. In Press.

Montana

Gessler, P. and D. Long. 2003. Soil-landscape modeling for evaluating crop yield and landscape water correlations. Agronomy Abstracts. ASA-CSSA-SSSA, Madison, WI.

Long, D., R. Engel, P. Gessler, and M. Westcott. 2003. Determining field management zones using high resolution information from proximal sensing, remote sensing, and terrain modeling. Agronomy Abstracts. ASA-CSSA-SSSA, Madison, WI.

Engel, R., D. Long, and G. Carlson. 2003. Predicting straw yield of hard red spring Wheat. Agron. J. 2003 95:1454-1460.

Ohio

Allred, B., Ehsani, R., Daniels, J. The impact on electrical conductivity measurement due to soil profile properties, shallow hydrologic conditions, fertilizer application, agricultural tillage, and the type of geophysical method employed. Proceedings of the Symposium on the Application of Geophysics to Engineering and Environmental Problems. San Antonio, TX. 2003. pp. 336-349.

Batte, Marvin T. and Michael W Arnholt. "Precision Farming Adoption and Use in Ohio: Case Studies of Six Leading-Edge Adopters." Computers and Electronics in Agriculture 38 (2003): 125-139.

Batte, Marvin T. "Precision Farming and Land Leasing Practices." Journal of the American Society of Farm Managers and Rural Appraisers, 2003: 55-63.

Batte, Marvin T., Craig Pohlman, D. Lynn Forster, and Brent Sohngen. "Adoption and Use of Precision Farming Technologies: Results of a 2003 Survey of Ohio Farmers." AED Economics Report AEDE-RP-0039-03. Department of Agricultural, Environmental, and Development Economics, The Ohio State University, December, 2003.

Ehsani, M. R., M. Sullivan, and T. Zimmerman. 2003. Evaluating the Dynamic Accuracy of Low-Cost GPS Receivers. Presented at the ASAE Annual International Meeting, Paper No. 03-1014.

Saraswat, D., M. R. Ehsani, N Watermeier, M. Sullivan. 2003. Potential Application of Yield Data for Creating Topographic Maps. Presented at the ASAE Annual International Meeting, Paper No. 03-1084

South Dakota

Refereed Publications

Chang, J. D. E. Clay, C. G. Carlson, C. L. Reese, S. A. Clay, and M.M. Ellsbury 2004. The Influence of Different Approaches to Define Yield Goals and Management Zones on N and P Fertilizer Recommendations. Agron. J. (In press).

Clay, D.E., S.A. Clay, D.J. Lyon, and J.M. Blumenthal. 2004. Can 13C discrimination in corn (Zea mays) grain be used to characterize intra-plant competition for water and nitrogen? Weed Sci. (submitted 8/03, in review).

Chang, J., S.A. Clay, and D.E. Clay. 2004. Detecting weed free and weed infested areas of a soybean (Glycine max) field using NIR reflectance data. Weed Sci. (In press)

Chang, J., D. E. Clay, K. Dalsted, S.A. Clay, M. O?Neill. 2004. Use of spectral radiance at multiple sampling dates to estimate corn (Zea mays) yield using principal component analysis. Agron. J. 95:1447-1453.

Clay, D.E., S.A. Clay, J. Jackson, K. Dalsted, C. Reese, Z. Liu, D.D. Malo, and C.G. Carlson. 2003. C13 discrimination can be used to evaluate soybean yield variability. Agron. J. 95:430-435.

Chang, J., D.E. Clay, C.G. Carson, S.A. Clay, D.D. Malo, R. Berg, and W. Wiebold. 2003. The influence of different approaches for defining nutrient management zone boundaries on N and P recommendations. Agron. J. 95:1550-1559.

Chang, J. S.A. Clay, D.E. Clay, D.Aaron, and D. Helder. 2004. Comparing spectral reflectance data collected from two different spectroradiometers for ground reflectance measurements. Com. Soil and Plant Anal. (In review).

Clay, D.E., Z. Zhen, Z. Liu, S.A. Clay, and T.P. Trooien. 2004. Bromide and nitrate leaching in undisturbed soil columns collected from three landscape positions. J. Environ. Qual. (In press).

Guideline Papers

Dalsted, D. J. Paris, D. Clay, S.A. Clay, C. Reese, and J. Chang. 2003. Selecting the Appropriate Satellite Remote Sensing Product for Precision Farming. SSMG 40. Clay et al. (Ed) Site Specific Management Guidelines. Potash and Phosphate Institute. Norcross, GA.

Gaspar, P., C.G. Cson, arland D.E. Clay. 2003. A?Cookbook? approach for determining the point of maximum economic return. SSMG 39. Clay et al. (Ed) Site Specific Management Guidelines. Potash and Phosphate Institute. Norcross, GA.

Clay, D.E., C.G. Carlson, and J. Chang. 2004. Identifying the ?Best? Approach to Identify Nutrient Management Zones: A South Dakota Example SSMG 41. Clay et al. (Ed) Site Specific Management Guidelines. Potash and Phosphate Institute. Norcross, GA.

Proceedings

Paz, J.O., W.D. Batchelor, D.E. Clay, S.A. Clay, And C. Reese. 2003. Characterization of soybean yield variability using crop growth models and 13c discrimination. ASAE Meeting Presentation # 033044.

Jackson, J., S.A. Clay, and D.E. Clay. 2002. Influence of landscape position and weeds on water stress in soybean. In Robert et al (eds.). Proceeding of 6th International Conference of Precision Agriculture July 14-17 2002, Minneapolis MN.

Clay, D.E., S.A. Clay, C. Reese, and C.G. Carlson. 2002. Using remote sensing and C13 discrimination to understand yield variability. In Robert et al (eds.). Proceeding of the 6th International Conference of Precision Agriculture July 14-17 2002, Minneapolis MN

Clay, D.E., J. Chang, C. Reese, and S. Christopherson. 2002. Landscape position influence on soybean quality. 2002. In Robert et al (eds.). Proceedings of the 6th International Conference of Precision Agriculture July 14-17 2002, Minneapolis MN.

Chang, J., D.E. Clay, C.G. Carlson, S.A. Clay, and D.D. Malo. 2002. The influence of different classification approaches on N an P fertilizer recommendations. Proceedings of the 6th International Conference of Precision Agriculture July 14-17 2002, Minneapolis MN.

Clay, D.E., K. Dalsted, M. O?Neill, C. Reese, and P. Thanupura. 2002.Teaching farmers how to use remote sensing. 2002 In Robert et al (eds.). Proceeding of the 6th International Conference of Precision Agriculture July 14-17 2002, Minneapolis MN.

Ellsbury, S.A. Clay, D.E. Clay, D.D. Malo, and C.G. Carlson. 2002. In Robert et al (eds.). Increased incidence of extended diapause in northern corn rootworm and evidenced by georeferenced adult emergence. Proceedings of the 6th International Conference of Precision Agriculture July 14-17 2002, Minneapolis MN.

Reese, C.L., D. Clay, D. Long, C.G. Carlson, and D. Beck. 2002. In Robert et al (eds.). Using protein and 13C discrimination to determine the influence of nitrogen and water stress on wheat yields. Proceedings of the 6th International Conference of Precision Agriculture July 14-17 2002, Minneapolis MN.

03/07/2005

Ceplecha, Z.L., R.M. Waskom, T.A. Bauder, J.L. Sharkoff and R. Khosla. 2004. Vulnerability assessments of Colorado ground water to nitrate contamination. J. Water, Air, and Soil Pollution 159 (1) 373-394.

Diker, K., D.F. Heermann, W.C. Bausch, and D.K. Wright. 2004. Shannon-Wieners diversity index for linking yield monitor and remotely sensed data for corn. Trans. of the ASAE. 47(4): 1347-1354.

Diker, K., Heermann, D.F. and Brodahl, M.K. 2004. Frequency analysis of yield for delineating management zones. Precision Agriculture, 5(5), 435-444.

Farahani, H.J., and G.W. Buchleiter. 2004. Temporal stability of soil electrical conductivity in irrigated sandy fields in Colorado. Trans. ASAE 47(1):79-90.

Farahani, H.J., G.W. Buchleiter, and M.K. Brodahl. 2004. Characterization of apparent soil electrical conductivity variability in irrigated sandy and non-saline fields in Colorado. Trans. ASAE. 47(6):1-14.

Fleming, K.L., D.F. Heermann, and D.G. Westfall. 2004. Evaluating soil color with farmer input and apparent soil electrical conductivity for management zone delineation. 2004. Agron. J. 96:1581-1587

Gent, D., H. Schwartz, and R. Khosla. 2004. Distribution and Incidence of Iris Yellow Spot Virus in Colorado and its Relation to Onion Plant Populations and Yield. J. of Plant Diseases. 88 (5) 446-452.

Koch, B., R. Khosla, D.G. Westfall, M. Frasier, and D. Inman 2004. Economic feasibility of variable rate N application in irrigated corn. Agron. J. 96:1572-1580.

Shaner, D. L. (2004) Precision Weed Management: Wave of the Future or Passing Fad? Phytoparsitica 32:3-6.

Wiles, L. and M. Brodahl. 2004. Exploratory data analysis to identify factors influencing the spatial distributions of weed seed banks Weed Science 52:936-947.

Souza, Eduardo G., Peter Scharf, Ken A. Sudduth, and James. D. Hipple. Using a field radiometer to estimate instantaneous sky clearness. Revista Brasileira de Engenharia Agrícola e Ambiental (accepted).

Scharf, Peter C., Newell R. Kitchen, Kenneth A. Sudduth, J. Glenn Davis, Victoria C. Hubbard, and John A. Lory. Field-scale variability in optimal N fertilizer rate for corn. Agron. J. (in press).

Brock, A., S.M. Brouder, G. Blumhoff, and B.S. Hofmann. 200X. Yield-based management zones for corn-soybean rotations. Agron. J. In Press.

Brouder, S.M., B.S. Hofmann, and D.K. Morris. 2005. Accuracy of common soil collection strategies and estimation techniques for mapping soil pH and lime requirement. Soil Sci. Soc. Am. J. In Press.

ONeal, M.R., J.R. Frankenberger, D.R. Ess, and J.M. Lowenberg-DeBoer. 2004. Profitability of on-farm precipitation data for nitrogen management based on crop simulation. Precision Agriculture 5:153-178.

Erickson, B. J., C. J. Johannsen, J. J. Vorst and L.L. Biehl. 2004. Using Remote Sensing to Assess Stand Loss and Defoliation in Maize, Photogram. Eng. & Remote Sensing, Vol. 70, No. 6: 717-722.

Donald, W. W., D. Archer, W. G. Johnson, and K. A. Nelson. 2004. Zone herbicide application controls weeds and reduces residual herbicide use in corn. Weed Sci. 52: in press.

Anselin, L., R. Bongiovanni and J. Lowenberg-DeBoer, A Spatial Econometric Approach to the Economics of Site-Specific Nitrogen Management in Corn Production, American Journal of Agricultural Economics. 86, 3 (2004), p. 675-687.

Bongiovanni, Rodolfo, and J. Lowenberg-DeBoer, Precision Agriculture and Sustainability, Precision Agriculture, 5: 359-388.

Lambert, D., J. Lowenberg-DeBoer and R. Bongiovanni, A Comparison of Four Spatial Regression Models for Yield Monitor Data: A Case Study from Argentina, Precision Agriculture (in Press).

Adamchuk, V.I., J.W. Hummel, M.T. Morgan, and S.K. Upadhyaya. 2004. On-the-go soil sensors for precision agriculture. Computers and Electronics in Agriculture 44(1):71-91.

Adamchuk, V.I., M.T. Morgan, and J.M. Lowenberg-DeBoer. 2004. A model for agro-economic analysis of soil pH mapping. Precision Agriculture 5:109-127.

Clay, D.E., Z. Zheng, Z. Liu, S.A. Clay, and T.P. Trooien. 2004. Bromide and nitrate leaching in undisturbed soil columns collected from three landscape positions. J. Environ. Qual. 33:338-342.

Clay, S.A., J. Chang, D.E. Clay, C.L. Reese, and K. Dalsted. 2004. Using remote sensing to develop weed management zones in soybeans. Site Specific Management Guideline Paper #42. PPI, FAR. Online at:www.ppi-far.org/ssmg.

Andersen, S., S.A. Clay, L.J. Wrage, and D. Matthees. 2004. Soybean foliage residues of dicamba and 2,4-D and correlation to application rates and yield. Agron. J. 96:750-760.

Chang, J., S.A. Clay, D.E. Clay, and K. Dalsted. 2004. Detecting weed-free and weed-infested areas of a soybean (Glycine max) field using near-infrared spectral data. Weed Sci. 52:642-648.

Clay, S.A., D.E. Clay, and T.B. Moorman. 2004. Comparison of atrazine and alachlor sorption, mineralization, and degradation potential in surface and aquifer sediments. Chapter 15. pg. 199-212. In Gan, J.J., P.C. Zhu, S.D. Aust, and A.T. Lemley. Pesticide decontamination and detoxification. ACS Symposium Series 863. Washington, D.C.

Oswald, J., T. Trooien, S. Clay, Z. Liu, and R. Thaler. 2004. Assessing potential transport of antibacterial chemicals in the landscape. South Dakota Academy of Science (submitted April 2004).

Roel, A. and R.E. Plant. Spatiotemporal Analysis of Rice Yield Variability in two California Fields. Agronomy Journal 95:77-90 (2004)

Roel, A. and R.E. Plant. Factors Underlying Yield Variability in Two California Rice Fields. Agronomy Journal 96:1481-1494 (2004)

Boyd, P. M., H. M. Hanna, J. L. Baker, and T. S. Colvin. 2004. Field evaluation of anhydrous ammonia manifold performance. Applied Engineering in Agriculture 20(6):745-756.

Franzen, D.W. 2004. Delineating nitrogen management zones in a sugarbeet rotation using remote sensing- a review. Journal of Sugar Beet Research 41:47-60.

Franzen, D.W., J.F. Giles, L.J. Reitmeier, A.J. Hapka, N.R. Cattanach, and A.C. Cattanach. 2004. Use of whole field research to change farm management practices. J. Nat. Resour. Life Sci. Educ. 33: 161-154.

Schepers, A., J.F. Shanahan, M. A. Liebig, J.S. Schepers, S. Johnson, and A. Luchiari. Agron. J. 2004. Appropriateness of management zones for characterizing spatial variability of soil properties and corn yields across years. Agron. J. 96:195-204.

Shanahan, J. F., T.A. Doerge, J. J. Johnson, and M.F. Vigil. 2004. Feasibility of site-specific management of corn hybrids and plant densities in the Great Plains. J. Prec. Ag. 5:207-225.

K.H. Holland, J.S. Schepers, J.F. Shanahan and G.L. Horst. 2004. Plant Canopy Sensor with Modulated Polychromatic Light Source. Proc. 7th International Conference on Precision Agriculture. Minneapolis, MN. (Conference Proceedings).

Stamtiadis, S., C. Tsadilas, and J.S. Schepers. 2004. Real-time crop sensors. p. 128-135. In Remote Sensing for Agriculture and the Environment. S. Stamadiadis, J.M. Lynch, and J.S. Schepers, (eds.) Peripheral Editions, Larissa Greece. (Book Chapter)

Schepers, J.S. 2004.Integrating remote sensing and ancillary information into management systems. p. 254-259. In Remote Sensing for Agriculture and the Environment. S. Stamadiadis, J.M. Lynch, and J.S. Schepers, (eds.) Peripheral Editions, Larissa Greece. (Book Chapter)

Francis, D.D., J.F. Shanahan, J.S. Schepers, and M.R. Schlemmer. 2004. An update on crop canopy sensors for in-season N management. p. 84-87. Proc. North Central Ext.-Industry Soil Fertility Conf. Nov. 17-18, Des Moines, IA. (Conference Proceedings).

Solari, F., P.J. Hodgen, J.S. Schepers, and J.F. Shanahan. 2004. Active sensor orientation over cornrows and effect on assessment of biomass. p. 110-117. Proc. North Central Ext.-Industry Soil Fertility Conf. Nov. 17-18, Des Moines, IA. (Conference Proceedings).

02/02/2006

Given the large membership of this committee, it is not possible to list all the publications. In general, there are certain publishing venues whose USA contributors are likely to be NCERA180 members working on NCERA180 activities. For example these include:

1. The journal "Precision Agriculture" where most of the USA-authored articles are NCERA180-related.
2. The journal "Computers and Electronics in Agriculture" where many of the USA-authored articles are NCERA-180 related.
3. Conference and journal publications of some professional societies with significant SSCM or PA content. These especially include ASABE, ASA, and SSSA.
4. The biennial International Conference on Precision Agriculture held in Minneapolis in even-numberd years is dominated by NCERA180 contributions.
5. Most of the USA contributions to the biennial European Conference on Precision Agriculture are NCERA180 efforts.
6. A wide variety of extension publications are published in the states which are members of this committee.

A somewhat random sampling of publications might be:

Mulla, D. J. (Ed.) 2005. Proc. 7th Intl. Conf. Prec. Agric. Includes 176 papers and 2000 pages of research. Univ. Minnesota. St. Paul, MN.

Shin, D. J., W. S. Lee, and S. Y. Na. 2005. Dynamic load estimation in silage harvesting. Trans. ASAE 48(4): 1131-1320

Lee, W. S., J. K. Schueller, and T. F. Burks. 2005. Wagon-based silage yield mapping system. Agricultural Engineering. (online journal) Vol. VII. Manuscript IT 05 003.

Subramanian V., T.F. Burks, and S. Singh. 2005. Autonomous Greenhouse Sprayer Vehicle using Machine Vision and Ladar for Steering Control. Applied Engineering in Agriculture 21(5):1-9.

Ping, J.L., and A. Dobermann. 2005. Processing of yield map data. Precision Agriculture 6:193-212.

Y. Miao, D. J. Mulla and P. C. Robert. 2005. Combining soil-landscape and spatial-temporal variability of yield information to delineate site-specific management zones. In: (J. V. Stafford, ed.), Proc. 5th European Conf. Precision Ag. P. 811-818. Wageningen Academic Publ. Wageningen, The Netherlands.

Bausch, Walter C. and Jorge A. Delgado. 2005. Impact of residual soil nitrate on in-season nitrogen applications to irrigated corn based on remotely sensed assessments of crop nitrogen status. Precision Agriculture 6: 509-519.

Schepers, A., J. F. Shanahan, M. A. Liebig, J.S. Schepers, S. Johnson, and A. Luchiari. Agron. J. Appropriateness of management zones for characterizing spatial variability of soil properties and corn yields across years. Agron. J. 96:195-204. 2004.

Adamchuk, V.I., M.T. Morgan, and J.M. Lowenberg-DeBoer. 2004. A model for agro-economic analysis of soil pH mapping. Precision Agriculture, 5:109-127.

Siefken, R.J., V.I. Adamchuk, D.E. Eisenhauer, and L.L. Bashford. 2005. Mapping soil mechanical resistance with a multiple blade system. Applied Engineering in Agriculture 21(1):15-23.

Adamchuk, V.I., J.W. Hummel, M.T. Morgan, and S.K. Upadhyaya. 2004. On-the-go soil sensors for precision agriculture. Computers and Electronics in Agriculture 44:71-91.

Delgado, J.A. and W.C. Bausch. 2005. Potential use of precision conservation techniques to reduce nitrate leaching in irrigated crops. Journal of Soil and Water Conservation 60(6): 38-46.

Wiles, L.J. 2005. Sampling to make maps for site-specific weed management. Weed Science 53:228-235.

Scharf, P.C., Kitchen, N.R., Sudduth, K.A., Davis, J.G., Hubbard, V.C., Lory, J.A. 2005. Field-Scale Variability in Optimal Nitrogen Fertilizer Rate for Corn. Agronomy Journal. 97:452-461.

P. Gowda and D. Mulla. 2005. Environmental benefits of precision agriculture-A modeling case study. Intl Annual Meeting Am. Soc. Ag. Eng., Tampa, FL. Paper No. 051042.

Cugati, S.A., W.M. Miller, and J.K. Schueller. 2005. Dynamic modeling of variable-rate granular applicator hydraulic flow control valve. 5th European Conference on Precision Agriculture. Uppsala, Sweden. June 9-12.

Tarr, A.B., K.J. Moore, D.G. Bullock, P.M. Dixon, C.L. Burns. 2005. Improving map accuracy of soil variables using soil electrical conductivity as a covariate. Precision Agriculture 6:255-270.

Kitchen, N.R., Sudduth, K.A., Myers, D.B., Massey, R.E., Sadler, E.J., Lerch, R.N., Hummel, J.W., Palm, H.L. 2005. Development of a Conservation-Oriented Precision Agriculture System: Crop Production Assessment and Plan Implementation. Journal of Soil and Water Conservation. 60(6):421-430.