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Department of Agronomy

Dr. Augustine Obour

Dr. Augustine Obour

Associate Professor

Soil Science
Email Dr. Obour

Agricultural Research Center
1232 240th Avenue
Hays, KS 67601

Ph: +1-785-625-3425
Fx: +1-785-625-3425

Biography & Education


Dr. Augustine Obour is an Assistant Professor of Soil Science at Kansas State University Agricultural Research Center, Hays. A native of Ghana, Obour earned a bachelor’s degree in Crop Science from the Kwame Nkrumah University of Science &Technology, Ghana. He holds a master’s degree in Agronomy and a Ph.D in Soil and Water Science from the University of Florida.

His expertise is in soil and nutrient management with emphasis in tillage and nutrient management interactions in dryland cropping systems. He worked as a research scientist for the University of Wyoming from 2010 to 2013. He joined Kansas State University in May 2013.

  • Ph.D. Soil and Water Science, University of Florida, USA, 2010
  • M.S. Agronomy, University of Florida, USA, 2007
  • B.S. Crop Science, Kwame University of Science and Technology, Ghana, 2002


  • Walsh, M.J., R.W. Groose, A.K. Obour, D.A. Claypool, R.H. Delaney and J.M. Krall. 2013. Seed persistence in soil of five medic cultivars in southeastern Wyoming, USA. Crop Sci.53:674-678.
  • Islam, M.A., A.K. Obour, J.M. Krall, J.T. Cecil, and J.J. Nachtman. 2013. Performance of turfgrass under supplemental irrigation and rain-fed conditions in the Central Great Plains of USA. Grassland Sci. 59:111-119.
  • Islam, M.A., A.K. Obour, M.C. Saha, J.J. Nachtman, and R.E. Baumgartner. 2013. Small grains have forage production potential and nutritive value in Central High Plains of Wyoming. Forage and Grazinglands. doi:10.1094/FG-2013-0121-02-RS.
  • Islam, M.A., A.K. Obour, M.C. Saha, J.J. Nachtman, W.K. Cecil, and R.E. Baumgartner. 2013. Grain yield, forage yield, and nutritive value of dual-purpose small grains in the Central High Plains of USA. Crop Management. doi:10.1094/CM-2012-0154-RS.
  • Agyin-Birikorang, S., Y.C. Newman, A.K. Obour, and G.N. Kasozi. 2012. Agro-ecological nitrogen management in soils vulnerable to nitrate leaching: a case study in the lower Suwannee watershed. Nutr. Cycl. Agroecosyst. 92: 91-105.
  • Silveira, M.L., A.K. Obour, J.M. Vendramini, and L.E. Sollenberger. 2011. Using tissue analysis as a tool to predict bahiagrass phosphorus fertilization requirement. J. Plant Nutr. 34:2193-2205.
  • Obour, A.K., M.L. Silveira, J.M.B. Vendramini, L.E. Sollenberger, G.A. O’Connor, and J.W. Jawitz, 2011. Agronomic and environmental impacts of phosphorus fertilization of low input bahiagrass systems in Florida. Nutr. Cycl. Agroecosyst. 89:281-290.
  • Obour, A.K., J.M.B. Vendramini, M.L. Silveira, L.E. Sollenberger, G.A. O'Connor, and J. Jawitz. 2011. Phosphorus fertilization responses on bahiagrass pastures: forage production and water quality. Agron. J. 103:324-330.
  • Silveira, M.L., A .K. Obour, J. Arthington, and L.E. Sollenberger. 2011. The cow-calf industry and water quality in South Florida, USA: a review. Nutr. Cycl. Agroecosyst. 89:439-452.
  • Obour, A.K., M.L. Silveira, J.M.B.Vendramini, J. Jawitz, G.A. O’Connor and L.E. Sollenberger. 2011. A Phosphorus budget for bahiagrass pastures growing on a typical Florida spodosol. Agron. J. 103:611-616.
  • Obour, A.K., M.L. Silveira, J.M.B. Vendramini, L.E. Sollenberger, andG.A.O'Connor.2011.Fluctuating water table effect on phosphorus release and availability from a Floridaspodosol. Nutr. Cycl. Agroecosyst. 91:207-217.
  • Obour, A.K., M.L. Silveira, J.M.B. Vendramini, M.B. Adjei, and L.E. Sollenberger. 2010.Evaluating cattle manure application strategies on phosphorus and nitrogen losses from a Florida spodosol. Agron. J. 102:1511-1521.
  • Obour, A.K., M. L. Silveira, M.B. Adjei, J. M. Vendramini and J. E. Rechcigl. 2009. Cattle manure application strategies effects on bahiagrass yield, nutritive value, and phosphorus recovery. Agron. J. 101:1099-1107.
  • Akromah, R., S.Y.C. Essah and A.K. Obour. 2009. Reaction of local and improved cassava germplasm to the African cassava mosaic virus disease. Crop Res. 38:219-223.


Augustine Obour’s research efforts are focused on developing soil management and agronomic production practices which protect soil, water, and air resources while sustaining crop yields and maintaining soil and environmental quality. Specific research goals are:

  • Develop oilseed and bioenergy feedstock production recommendations for western Kansas.
  • Investigate soil fertility and nutrient management issues in dryland (water-limited) cropping systems.
  • Investigate the interaction among tillage, cropping sequence and nutrient management and evaluate their impacts on crop productivity, nutrient cycling, carbon sequestration and overall soil health.