The Role of phosphorus in agriculture / editorial committee, F.E. Khasawneh, E.C. Sample, E.J. Kamprath ; symposium planning committee, F.E. Khasawneh ... [et al.] ; coordinating editor, Matthias Stelly ; managing editor, Richard C. Dinauer. Khasawneh, F. E., Sample, E. C., 1929- Kamprath, E. J. Tennessee Valley Authority. American Society of Agronomy. Phosphatic fertilizers Congresses. Phosphorus in agriculture Congresses. Plants Effect of phosphorus on Congresses. Soils Phosphorus content Congresses. Phosphate industry Congresses. S647 .R64 1980 631.85 KHR "Proceedings of a symposium held 1-3 June 1976 at the National Fertilizer Development Center, Tennessee Valley Authority, Muscle Shoals, Alabama, cosponsored by the Tennessee Valley Authority ... [et al.]." Includes bibliographical references and index. Madison : American Society of Agronomy, c1980. c1980. 1980 Text xviii, 910 p. : eng