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Effect of Rye and Vetch Green Manures on the Microflora, Nitrates, and Hydrogen-ion Concentration of Two Acid and Neutralized Soils


Author:
Smith, Nathan R. and Humfeld, Harry
Source:
USDA
Year:
1930
Format:
p. 97-123.
Language:
English
Collection:
USDA publications
Permanent URL:
http://handle.nal.usda.gov/10113/IND43967830