. Development and activities of roots of crop plants; a study in crop ecology. Roots (Botany); Plant ecology; Crops and climate. CARNEGIE INSTITUTION OF WASHINGTON Publication No. 316 Copies of this book first issued MAY 11 1922 isatitatSant HAY t2 1922 TECHNICAL PRESS WASHINGTON, D. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Weaver, John E. (John Ernest), 1884-1966; Jean, Frank Covert, 1880- joint author; Crist, J
. Development and activities of roots of crop plants; a study in crop ecology. Roots (Botany); Plant ecology; Crops and climate. CARNEGIE INSTITUTION OF WASHINGTON Publication No. 316 Copies of this book first issued MAY 11 1922 isatitatSant HAY t2 1922 TECHNICAL PRESS WASHINGTON, D. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Weaver, John E. (John Ernest), 1884-1966; Jean, Frank Covert, 1880- joint author; Crist, John W. , joint author. Washington, Carnegie Institution of Washington
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectcropsan, bookyear1922
