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Your search returned 2902 results.
by -- United States. Department of Agriculture
by Dowdy, R. H; Stelly, Matthias. -- American Society of Agronomy; Soil Science Society of America
by Greenland, D. J; Hayes, M. H. B. (Michael Hilary Bermingham).
by Bolt, G. H. (Gerard H.); Bruggenwert, M. G. M.
by Sparks, Donald L., Ph. D.
by Tan, Kim H. (Kim Howard).
by Marshall, C. E. (Charles Edmund).
by Nelson, D. W. (Darrell W.). -- American Society of Agronomy. Division S-1
by Lindsay, Willard Lyman.
by Huang, P. M; Senesi, N. (Nicola); Buffle, J. (Jacques).
by Bohn, Hinrich L; McNeal, Brian Lester; O'Connor, George A.
by Bear, Firman E. (Firman Edward).
by Bonneau, Maurice; Souchier, B. (Bernard).
by Hesse, Peter Ralston.
by Saar , Robert A; Pilar , Frank L.
by Ingle, Herbert.
by Comber, Norman Mederson.
by Bear, Firman E. (Firman Edward); Kitchen, Herminie B. (Herminie Broedel).