J. A. Stricker, G. M. Prine, D. L. Anderson, D. B. Shibles, and T. C. Riddle, “Energy from Crops: Production and Management of Biomass/Energy Crops on Phosphatic Clay in Central Florida: CIR 1084/EH213, rev. 9/2003”, EDIS, vol. 2003, no. 15, Sep. 2003.