USGS

County-Level Estimates of Nitrogen and Phosphorus Fertilizer Use in the United States, 1945 to 1985

USGS Open-File Report 90-130

By Richard B. Alexander and Richard A. Smith

Open-File Report 90-130 -- Text and Figures

County Fertilizer Use Data -- Digital Data from the Report and Other More Recent Sources

How to Order the Report

USGS Biology Geology Geography Water Open-File Reports Water Related Reports

U.S. Department of the Interior, U.S. Geological Survey
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Last update: 09:00:45 Fri 10 Aug 2001
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