| Main Title |
Nitrate in the unsaturated zone under agricultural lands / |
| Author |
Pratt, P. F.
|
| Publisher |
United States Environmental Protection Agency, Office of Research and Monitoring, |
| Year Published |
1972 |
| Report Number |
EPA16060-DOE-04/72; W7212042 |
| OCLC Number |
00539378 |
| Subjects |
Nitrogen fertilizers ;
Nitrification ;
Leaching
|
| Internet Access |
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| EJBD |
EPA 16060-DOE-04-72 |
c.1 |
Headquarters Library/Washington,DC |
04/21/2014 |
| ELBD ARCHIVE |
EPA 16060-DOE-04-72 |
Received from HQ |
AWBERC Library/Cincinnati,OH |
10/04/2023 |
| ELBD RPS |
EPA 16060-DOE-04-72 |
repository copy |
AWBERC Library/Cincinnati,OH |
09/01/2020 |
|
| Collation |
vii, 45 pages : illustrations, figures, tables ; 28 cm |
| Notes |
"April, 1972." "University of California, Riverside. Department of Soil Science and Agricultural Engineering." 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. |
