Grades of peat and muck for soil improvement
By: by A.P. Dachnowski-Stokes
Series: Circular / United States Department of Agriculture -- no. 290; Circular (United States. Dept. of Agriculture) -- no. 290.
Publisher: U.S. Dept. of Agriculture
Published: 1933
Place of publication: Washington, D.C
Language: eng
Number of pages: 31
Subjects: Peat; Organic fertilizers; Humus
Notes: Caption title.

"Contribution from Bureau of Chemistry and Soils."

Bibliography: p. 30.