County-level estimates of nitrogen and phosphorus fertilizer use in the United States, 1945 to 1985
By: by Richard B. Alexander and Richard A. Smith
Contributors: Smith, Richard A; Geological Survey (U.S.)
Series: U.S. Geological Survey open-file report -- 90-130
Publisher: U.S. Dept. of the Interior, U.S. Geological Survey; Books and Open-File Reports [Section, distributor]
Published: 1990
Place of publication: Reston, Va; Denver, Colo
Language: eng
Format: Microform
Number of pages: 12
Subjects: Nitrogen fertilizers -- United States; Phosphatic fertilizers -- United States
Other titles: County level estimates of nitrogen and phosphorus fertilizer use in the United States, 1945 to 1985
Notes: Distributed to depository libraries in microfiche

Shipping list no.: 94-0125-M

Includes bibliographical references (leaf 6)

Microfiche. [Denver, Colo. : U.S. Geological Survey, 1994] 1 microfiche : negative