Recent Publications
Stevens, G., A. Wrather, E. Vories, M. Rhine, and D. Dunn. 2007. Predicting rice yield response to midseason nitrogen with plant area measurements. Agronomy Journal. In press.
Stevens, G., D. Dunn, and S. Hefner. 2007. Building soil potassium and phosphorus in a low-testing fescue field. Better Crops with Plant Food. Inter. Plant Nut. Inst. 91, No. 4, pg 20-21 .
Dunn, D., and G. Stevens. 2007. Phosphorus management in a dry-seeded delayed-flood rice production system. Better Crops with Plant Food. Inter. Plant Nut. Inst. 91, No. 1, pg 20-21. http://www.potafos.org/ppiweb/bcrops.nsf/$webindex/01FB893176AC938F8525727600795BDA/$file/07-1p20.pdf
Stevens, G., A. Sheckell, E. Vories, M. Mulesky, M. Rhine, and D. Dunn. 2007. Irrigation to maximize vaccine production in pharmaceutical tobacco. Agronomy Journal 99:1271-1277. http://agron.scijournals.org/cgi/content/abstract/99/5/1271
Aide, M., C. Aide, D. Dunn, and G. Stevens. 2006. Fragipan genesis in the eastern Ozarks of Missouri. Soil Science. 171(6):483-491.
Horner, J., T. Richard, G. Stevens, and T. Thomas. 2006. Report of Group II on organization and assessment of potential technologies at Pyeongtaek City, Korea. University of Missouri, Columbia, Missouri. 15 November.
Rhine, M, G. Stevens, and D. Dunn. 2006. Rice seeding rates and yield response to midseason nitrogen. pg. 173. (M. Salassi ed.) In Proc. Thirty-first Rice Tech Working Group. Agric. Exp. Stations of Ark, Cal, Fl, Louis, Miss, Mo, and Tx Woodlands, TX. 26 February – 1 March.
Stevens, G, D. Dunn, A. Wrather, B. Ottis, and D. Beighley. 2006. Yardstick method of assessing rice midseason nitrogen. pg. 174. (M. Salassi ed.) In Proc. Thirty-first Rice Tech Working Group. Agric. Exp. Stations of Ark, Cal, Fl, Louis, Miss, Mo, and Tx. Woodlands, TX. 26 February – 1 March.
Dunn, D.J., B. Ottis, A. Wrather, W. Stevens, D. Beighley, and M. Aide. 2006. Can we predict rice yields using spectral reflectance at midseason. pg. 146-147 (M. Salassi ed.) In Proc. Thirty-first Rice Tech Working Group. Agric. Exp. Stations of Ark, Cal, Fl, Louis, Miss, Mo, and Tx Woodlands, TX. 26 February – 1 March.
Dunn, D.J., and W. E. Stevens. 2006. Polymer fertilizer coatings: can they increase phosphorus efficiency in rice? pg. 168. (M. Salassi ed.) In Proc. Thirty-first Rice Tech Working Group. Agric. Exp. Stations of Ark, Cal, Fl, Louis, Miss, Mo, and Tx Woodlands, TX. 26 February – 1 March.
Stevens, W., E. Vories, D. Dunn, and M. Rhine. 2006. Irrigation for vaccine antigen production in pharmaceutical tobacco. ASA-CSSA-SSSA International Annual Meetings. Paper # 25438. Indianapolis, IN. 12-16 Nov.
Nelson, K., B. Burdick, P. Scharf, and G. Stevens. 2006. Rescue nitrogen applications for corn. ASA-CSSA-SSSA International Annual Meetings. Paper # 24707. Indianapolis, IN. 12-16 Nov.
Stevens, G., and D. Dunn. 2006. Soil fertility research at the University of Missouri-Delta Center pg. 42-59 (C. Synder and R. Large, eds.) In Proc. Southern Plant Nutrient Management Conf. Olive Branch, Mississippi, 3-4 October.


Light sensors measuring cotton leaf reflectance are being calibrated for predicting cotton response to side-dress nitrogen at mid-square and early bloom. READ MORE


Programs using Excel spreadsheet are available. Nitromax-optimize nitrogen rates for current prices.Cotton Replant Decison- aids in replant planning. Calibration- helps perform equipment adjustments for applying crop inputs.

