Brief Summary of Minutes of Annual Meeting

NCR-180 is a special interest group to facilitate interactions between scientific disciplines interested in site-specific management, as well as state experiment station researchers, college instructors, federal researchers and industry representatives. The annual meetings provide that interaction and are a forum for establishing collaborative relationships and exchanging information. Interactions and collaborations between individual members continue throughout the year. The participants develop a list of critical issues in site-specific management that are distributed between the members. These issues are used by participants in their individual and collective research plans. Issues identified in 2004 include the following. " Quantification of spatial auto-correlation between soil/crop factors that bias the tradi-tional statistical tools used in decision making " Development and calibration of sensors for plant nutrient status " Development of a decision support environment that can integrate many spatial data layers with scientific understanding of biological, chemical and physical phenomenon that occur in plants and soils " Description of the economic and environmental conservation advantages of site-specific management, and development of evaluation tools for potential adopters " Development of tools and techniques that can make site-specific management scale-neutral " Development of a systems approach to incorporating information technologies into crop management, regardless of the scale of the information Specific impacts that NCR-180 participants report that the committee has had on their programs or activities are listed in the impact section.

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.