00956cam a22002651 4500 agr50000006 DLC 20260227111012.0 750915s1949 dcua b 100 0 eng c agr50000006 (OCoLC)1627001 U.S. Dept. of Agr. Libr. FM OCoLC DLC premarc QK867 .A5 1949 581.13082 American Society of Agronomy. Hunger signs in crops; a symposium, prepared by Firman E. Bear [and others. Rev., i.e. 2d, ed.] Washington, American Society of Agronomy and National Fertilizer Association [1949] xvi, 390 p. illus. (part col.) 27 cm. "Selected references" at end of each chapter except the first. Deficiency diseases in plants. Bear, Firman E. (Firman Edward), 1884-1967. National Fertilizer Association (1925- ) 11084 11084