Development and activities of roots of crop plants
Subtitle: a study in crop ecology
By: by John E. Weaver, Frank C. Jean, and John W. Crist.
Contributors: Jean, Frank Covert, 1880-; Crist, John William.
Series: Carnegie Institution of Washington. Publication -- no. 316.; Carnegie Institution of Washington publication -- 316.
Publisher: Carnegie Institution of Washington
Published: 1922
Place of publication: Washington
Language: eng
Number of pages: 117
Subjects: Roots (Botany); Plant ecology.; Crops and climate.