Altom, W., J.L. Rogers, W.R. Raun, G.V. Johnson and S.L. Taylor. 1996.Long-term rye-wheat-ryegrass forage yields as affected by rate and date of N application. J. of Prod. Agric. 9:510-516.

Boman, R.K., R.L. Westerman, W.R. Raun and M.E. Jojola. 1995. Time of nitrogen application: effects on winter wheat and residual soil nitrate. Soil Sci. Soc. Am. J. 59:1364-1369.

Boman, R.K., R.L. Westerman, W.R. Raun, and M.E. Jojola. 1995. Spring-applied nitrogen fertilizer influence on winter wheat and residual soil nitrate. J. Prod. Agric. 8:584-589.

Gavi, F., W.R. Raun, N.T. Basta and G.V. Johnson. 1997. Effect of sewage sludge and ammonium nitrate on wheat yield and soil profile inorganic nitrogen accumulation.
J. of Plant Nutr. 20(2&3):203-218.

Johnson, G.V., and W.R. Raun. 1995. Nitrate leaching in continuous winter wheat: use of a soil-plant buffering concept to account for fertilizer nitrogen. J. Prod. Agric. 8:486-491.

Kanampiu, F.K., W.R. Raun and G.V. Johnson. 1997. Effect of nitrogen rate on plant nitrogen loss in winter wheat varieties. J. of Plant Nutr. 20(2&3):389-404.

Phillips, S.B., W.R. Raun, and G.V. Johnson. 1997. Seasonal and long-term changes in well water nitrate-nitrogen. J. Environ. Qual. 26:1632-1637.

Raun, W. R., and R. L. Westerman. 1991. Nitrate-N and phosphate-P concentration in winter wheat at varying growth stages. J. of Plant Nutr. 14:267-281

Raun, W.R., and G.V. Johnson. 1995. Soil-plant buffering of inorganic nitrogen in continuous winter wheat. Agron. J. 87:827-834.

Raun, W.R., G.V. Johnson, H. Sembiring, E.V. Lukina, J.M. LaRuffa, W.E. Thomason, S.B. Phillips, J.B. Solie, M.L. Stone and R.W. Whitney. 1998. Indirect measures of plant nutrients. Commun. In Soil Sci. Plant Anal. 29:1571-1581.

Raun, W.R., G.V. Johnson, S.B. Phillips and R.L. Westerman. 1998. Effect of long-term nitrogen fertilization on soil organic C and total N in continuous wheat under conventional tillage in Oklahoma. Soil & Tillage Res. 47:323-330.

Raun, W.R., J.B. Solie, G.V Johnson, M.L. Stone, R.W. Whitney, H.L. Lees, H. Sembiring and S.B. Phillips. 1998. Micro-variability in soil test, plant nutrient and yield parameters in bermudagrass. (in press, Soil Sci. Soc. Am. J. 62:(3)).

Raun, William R., Gordon V. Johnson, Jeffory A. Hattey, Shannon L. Taylor and Heather L. Lees. 1997. Nitrogen cycle ninja, a teaching exercise. J. Nat. Resour. Life Sci. Educ. 26:39-42.

Sembiring, H., G.V. Johnson and W.R. Raun. 1998. Extractable N using hot KCl as a mineralization potential index. (in press J. Plant Nutr.)

Sembiring, H., W.R. Raun and G.V. Johnson. 1998. Nitrogen accumulation efficiency: relationship between excess fertilizer and soil-plant biological activity in winter wheat. (in press, J. Plant Nutr.)

Sembiring, H., W.R. Raun, G.V. Johnson, M.L. Stone and S.B. Phillips. 1998. Detection of nitrogen and phosphorus nutrient status in bermudagrass using spectral radiance. (in press J. Plant Nutr.)

Sembiring, H., W.R. Raun, G.V. Johnson, M.L. Stone, J.B. Solie and S.B. Phillips. 1998. Detection of nitrogen and phosphorus nutrient status in winter wheat using spectral radiance. (in press J. Plant Nutr.)

Solie, J.B., W.R. Raun, R.W. Whitney, M.L. Stone and J.D. Ringer. 1996. Optical sensor based field element size and sensing strategy for nitrogen application. Trans. ASAE 39(6):1983-1992.

Stone, M.L., J.B. Solie, W.R. Raun, R.W. Whitney, S.L. Taylor and J.D. Ringer. 1996. Use of spectral radiance for correcting in-season fertilizer nitrogen deficiencies in winter wheat. Trans. ASAE 39(5):1623-1631.

Taylor, S.L., W.R. Raun, J.B. Solie, G.V. Johnson and M.L. Stone. 1998. Use of spectral radiance for correcting nitrogen deficiencies and estimating soil test variability in an established bermudagrass pasture. (in press, J. of Plant Nutrition).

Westerman, R.L, R.K. Boman, W.R. Raun and G.V. Johnson. 1994. Ammonium and nitrate nitrogen in soil profiles of long-term winter wheat fertilization experiments. Agron. J. 86:94-99.

Westfall, D.G., J.L. Havlin, G. Hergert and W.R. Raun. 1996. Nitrogen management in dryland cropping systems. J. Prod. Agric. 9:192-199.