Substituting fertilizer for land in growing corn
By: [by D.B. Ibach]
Series: ARS 43-63; ARS (Series) (United States. Agricultural Research Service) -- 43-63.
Publisher: U.S. Dept. of Agriculture, Agricultural Research Service
Published: 1957
Place of publication: [Washington, D.C.?]
Language: eng
Number of pages: 16
Subjects: Corn; Fertilizers; Yields
Notes: Cover title.

"November 1957."