Selecting fertilizers
By: by Albert R. Merz
Series: Circular / United States Department of Agriculture -- no. 487; Circular (United States. Dept. of Agriculture) -- no. 487.
Publisher: U.S. Dept. of Agriculture
Published: 1938
Place of publication: Washington, D.C
Language: eng
Number of pages: 16
Subjects: Fertilizers
Notes: Caption title.

"Contribution from Bureau of Chemistry and Soils."