Adamchuk, V.I., Stombaugh, T.S., and Price, R.R. “GNSS-Based Auto-Guidance in Agriculture.” Technical Bulletin No. 46. South Dakota State University: International Plant Nutrition Institute, 2008.
Cerrato, M.E. and Blackmer, A.M. “Comparison of Models for Describing Corn Yield Response to Nitrogen Fertilizer.” Agronomy Journal
Dillon, C.R. “Production Practice Alternatives for Income and Suitable Field Day Risk Management.” Journal of Agricultural and Applied Economics
Dillon, C.R., Stombaugh, T.S., Kayrouz, B.M., Salim, J., and Koostra, B.K.
An Educational Workshop on the Use of Precision Agriculture as a Risk Management Tool. Precision Agriculture Refereed Conference Proceedings, 2005, pp. 861–67.
Ehsani, M.R., Sullivan, M., and Walker, J.T. “A Method of Evaluating Different Guidance Systems.” Paper presented at the American Society of Agricultural Engineers, Chicago, Illinois, July 26-27, 2002.
Freund, R.J. “The Introduction of Risk into a Programming Model.” Econometrica
Gan-Mor, S., Clark, R.L., and Upchurch, B.L. “Implement Lateral Position Accuracy under RTK-GPS Tractor Guidance.” Computers and Electronics in Agriculture
Griffin, T.W., Lambert, D.M., and Lowenberg-DeBoer, J. “Economics of Lightbar and Auto-Guidance GPS Navigation Technologies.” Precision Agriculture Refereed Conference Proceedings, 2005, pp. 581–87.
Griffin, T.W., “Economics of GPS-Enabled Navigation Technologies.” Paper presented at the Ninth International Conference on Precision Agriculture, Denver, Colorado, July 20-23, 2008.
Jones, J.W., Hoogenboom, G., Porter, C.H., Boote, K.J., Batchlelor, W.D., Hunt, L.A., Wilkens, P.W., Singh, U., Gijsman, A.J., and Ritchie, J.T. “The DSSAT Cropping System Model.” European Journal of Agronomy
Keicher, R., and Seufert, H. “Automatic Guidance for Agricultural Vehicles in Europe.” Computers and Electronics in Agriculture
Laughlin, D.H., and Spurlock, S.R. Mississippi State Budget Generator v6.0, 2007.
Lowenberg-DeBoer, J. “Risk Management Potential of Precision Farming Technologies.” Journal of Agricultural and Applied Economics
McCarl, B.A., and Bessler, D. “Estimating an Upper Bound of the Pratt Risk Aversion Coefficient When the Utility Function is Unknown.” Australian Journal of Agricultural Economics
National Agricultural Statistics Service Kentucky Field Office. Kentucky Agricultural Statistics 2007-2008 Bulletin. Washington, DC: U.S. Department of Agriculture, 2008.
Oriade, C.A., and Popp, M.P. “Precision Farming as a Risk Reducing Tool: A Whole-Farm Investigation.” Paper presented at the Fifth International Conference on Precision Agriculture, Minneapolis, Minnesota, July 16-19, 2000.
Palmer, R.J. “Techniques of Navigating in a Farm Field.” Navigation: Journal of The Institute of Navigation
Kentucky Farm Business Management Program: Annual Summary Data 2008. Lexington, KY: University of Kentucky Cooperative Extension Service, 2008.
Reid, J.F., Zhang, Q., Noguchi, N., and Dickson, M. “Agricultural Automatic Guidance Research in North America.” Computers and Electronics in Agriculture
Schmidt, J.P., DeJoia, A.J., Ferguson, R.B., Taylor, R.K., Young, R.K., and Havlin, J.L. “Corn Yield Response to Nitrogen at Multiple In-Field Locations.” Agronomy Journal
Stombaugh, T.S. Personal Communication. University of Kentucky Department of Biosystems and Agricultural Engineering, May 2009.
Stombaugh, T.S., Koostra, B.K., Dillon, CR., Mueller, T.G., and Pike, A.C. “Implications of Topography on Field Coverage When Using GPS-Based Guidance.” Precision Agriculture Refereed Conference Proceedings, 2007, pp. 425–32.
Stombaugh, T.S., McLaren, D., and Koostra, B. “The Global Positioning System.” Technical Bulletin No. AEN-88. University of Kentucky Cooperative Extension Service, 2005.
Stombaugh, T.S., and Shearer, S.A. “DGPS-Based Guidance of High-Speed Application Equipment.” Paper presented at the conference of American Society of Agricultural Engineers, Sacramento, California, July 29-August 1, 2001.
University of Kentucky, College of Agriculture-UKAg Weather Center. Internet site: http://www.agwx.ca.uky.edu (Accessed June, 2008).
U.S. Department of Agriculture-National Agricultural Statistics Service. 2007 Census of Agriculture. Washington, DC: USDA, 2010.
U.S. Department of Agriculture-Natural Resources Conservation Service. Internet site: http://www.nrcs.usda.gov (Accessed June, 2008).
World Agricultural Outlook Board. “World Agricultural Supply and Demand Estimates.” Technical Bulletin No. WASDE-463. U.S. Department of Agriculture, 2008.