Main Title |
Field measurement of denitrification / |
Author |
Rolston, Dennis Eugene,
|
Other Authors |
|
CORP Author |
California Univ., Davis. Dept. of Land, Air and Water Resources.;Robert S. Kerr Environmental Research Lab., Ada, Okla. |
Publisher |
Environment Protection Agency, Office of Research and Development, Robert S. Kerr Environmental Research Laboratory, Source Management Branch ; for sale by the National Technical Information Service, |
Year Published |
1977 |
Report Number |
EPA-600/2-77-233; EPA-R-804259 |
Stock Number |
22161 |
OCLC Number |
03738016 |
ISBN |
pbk. |
Subjects |
Denitrification ;
Denitrification--Measurement
|
Additional Subjects |
Field tests ;
Nitrogen cycle ;
Irrigation ;
Water pollution control ;
Grasses ;
Fertilizers ;
Soil water ;
Carbon ;
Organic compounds ;
Sources ;
Temperature ;
Gases ;
Diffusion ;
Plant growth ;
Leaching ;
Ground water ;
Nitrogen ;
Nitrogen oxide(N2O) ;
Ratios ;
Concentration(Composition) ;
Correlation techniques ;
Denitrification ;
Return flow ;
Manure
|
Internet Access |
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
EJBD |
EPA 600/2-77-233 |
c.1 |
Headquarters Library/Washington,DC |
04/08/2014 |
ELBD ARCHIVE |
EPA 600/2-77-233 |
Received from HQ |
AWBERC Library/Cincinnati,OH |
10/04/2023 |
ELBD |
EPA 600-2-77-233 |
|
AWBERC Library/Cincinnati,OH |
03/28/2018 |
EMBD |
EPA/600/2-77/233 |
|
NRMRL/GWERD Library/Ada,OK |
02/17/1995 |
ESAD |
EPA 600-2-77-233 |
|
Region 10 Library/Seattle,WA |
03/23/2010 |
NTIS |
PB-276 998 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
xv, 75 pages : illustrations, figures, tables ; 28 cm. |
Abstract |
Denitrification from a Yolo loam field profile was studied in relation to the influence of soil-water content, organic carbon source, and temperature. Field plots were intensely instrumented with soil atmosphere samplers, soil solution samplers, and tensiometers. The two soil-water pressure treatments were -0.01 and -0.05 bars in the topsoil. Three levels of soil carbon were studied by evaluating plots cropped with ryegrass, uncropped plots, and plots amended with manure. Experiments were conducted at soil temperatures of 8 and 23C. Fertilizer was applied as KNO3 enriched with 15N. The flux of volatile gases at the soil surface was measured from the accumulation of N2O and 15N2 beneath an air-tight cover placed over the soil surface for 1 or 2 hours per day. Denitrification at 23C ranged from 73% of the fertilizer N for the manure treatment at -0.01 bar to 1% for the uncropped treatment at -0.05 bar. At 8C, denitrification ranged from 11% for the manure treatment at -0.01 bar to zero for the uncropped plots. The N2O flux at the soil surface varied between 5 and 26% of total denitrification. |
Notes |
"November 1977." "Prepared under Grant No. R804259." Includes bibliographical references (pages 72-73). |
Place Published |
Ada, Okla. Springfield, Va. |
Corporate Au Added Ent |
Robert S. Kerr Environmental Research Laboratory.; United States. Environmental Protection Agency. Office of Research and Development. |
Corp Au Ser Add Ent |
United States. Environmental Protection Agency. Environmental protection techology series ; EPA-600/2-77-233. |
PUB Date Free Form |
1977 |
Series Title Untraced |
Environmental protection technology series ; EPA-600/2-77-233 |
NTIS Prices |
PC A05/MF A01 |
BIB Level |
m |
Medium |
unmediated |
Content |
text |
Carrier |
volume |
Cataloging Source |
OCLC/T |
Merged OCLC records |
1225740700 |
OCLC Time Stamp |
20180323052851 |
Language |
eng |
SUDOCS Number |
EP 1.23/2:600/2-77-233 |
Origin |
OCLC |
Type |
MERGE |
OCLC Rec Leader |
02431cam 2200529Ii 45010 |