REFERENCES

Gassman, P.W. 2008. A Simulation Assessment of the Boone River Watershed: Baseline Calibration/Validation Results and Issues, and Future Research Needs. Ph.D. Thesis, Iowa State University, Ames, IA.

Heggenstaller, A.H., K.J. Moore, M. Liebman, and R.P. Anex. 2009. Nitrogen influences productivity and resource partitioning by perennial, warm-season grasses. Agron. J. 101(6):1363-1371.

Vogel, K.P., J.J. Brejda, D.T. Walters, and D.R. Buxton. 2002. Switchgrass biomass production in the Midwest USA: Harvest and nitrogen management. Agron. J. 94(3):413-420.



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