European practice and American theory concerning soil fertility
By: by Cyril G. Hopkins
Series: Circular / University of Illinois (Urbana-Champaign campus). Agricultural Experiment Station -- no. 142; Circular (University of Illinois (Urbana-Champaign campus). Agricultural Experiment Station) -- no. 142
Publisher: University of Illinois Agricultural Experiment Station
Published: 1910
Place of publication: Urbana, Ill
Language: eng
Number of pages: 31
Subjects: Soil fertility; Soil management
Notes: Caption title.