The gain in nitrogen from growth of legumes on acid soils
By: E.B. Fred and E.J. Graul
Contributors: Graul, E. J. (Edward John), 1883-
Series: Research bulletin / University of Wisconsin, Agricultural Experiment Station -- 39; Research bulletin / University of Wisconsin, Agricultural Experiment Station -- 39.
Publisher: Agricultural Experiment Station of the University of Wisconsin
Published: 1916
Place of publication: Madison, Wis
Language: eng
Number of pages: 42
Subjects: Fixation; Green manuring; Nitrogen
Notes: Cover title.

Bibliography: p. 41-42.