Mushroom casing soil in relation to yield
By: by Edmund B. Lambert and Harry Humfeld
Contributors: Humfeld, Harry, 1894-
Series: Circular / United States Department of Agriculture -- no. 509; Circular (United States. Dept. of Agriculture) -- no. 509.
Publisher: U.S. Dept. of Agriculture
Published: 1939
Place of publication: Washington, D.C
Language: eng
Number of pages: 12
Subjects: Mushrooms; Soils; Casing soils
Notes: Caption title.

"Contribution from Bureau of Plant Industry."

Bibliography: p. 11.