U.S. flag

An official website of the United States government

NALDC

Main content area

Effect of Season and Crop Growth in Modifying the Soil Extract


Author:
Stewart, Guy R.
Source:
USDA
Year:
1918
Format:
p. 311-368. plates.
Language:
English
Collection:
USDA publications
Permanent URL:
http://handle.nal.usda.gov/10113/IND43965994