Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Nitrate in the unsaturated zone under agricultural lands,
Author Pratt, P. F.
Publisher [U.S. Environmental Protection Agency]; for sale by the Supt. of Docs., U.S. Govt. Print. Off.,
Year Published 1972
Report Number EPA16060-DOE-04/72; W7212042
OCLC Number 00539378
Subjects Nitrogen fertilizers. ; Nitrification. ; Leaching.
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJBD ARCHIVE EPA 16060-DOE-04-72 Headquarters Library/Washington,DC 03/10/2014
EJBD  EPA 16060-DOE-04-72 c.1 Headquarters Library/Washington,DC 04/21/2014
EKAD  16060DOE 04/72 Region 4 Library/Atlanta,GA 08/23/2002 DISPERSAL
EKAD  S651.P82 Region 4 Library/Atlanta,GA 08/23/2002 DISPERSAL
Collation vii, 45 pages illustrations 28 cm.
"16060 DOE 04/72." Includes bibliographical references (pages 41-42).
Contents Notes
Because of a tremendous increase in the concern for nitrate (NOåb3s) in surface and ground waters, the study of NOåb3s leaching has become very important. The present investigation was undertaken to determine the potential contribution of fertilizer N use on citrus and row crops to the NOåb3s in ground waters in the Santa Ana River Basin of Southern California where a deep unsaturated zone exists between the soil profile or crop-root zone and the water table or saturated zone. The objectives were to relate NOåb3s concentrations in the unsaturated zone to N inputs, N removal by harvested crops and the volume of drainage water, to obtain some estimates of transit times for drainage water through the unsaturated zone, to estimate denitrification losses on a field basis, and to assess the probable effects of present fertilizer N recommendations on NOåb3s in ground waters.