Main Title |
Nitrogen and irrigation management to reduce return-flow pollution in the Columbia Basin / |
Author |
McNeal, Brian Lester,
|
Other Authors |
|
CORP Author |
Washington State Univ., Pullman. Dept. of Agronomy and Soils.;Robert S. Kerr Environmental Research Lab., Ada, Okla. |
Publisher |
U.S. Environmental Protection Agency, Office of Research and Development, Robert S. Kerr Environmental Research Laboratory, |
Year Published |
1976 |
Report Number |
EPA-600/2-76-158; EPA-S-801187 |
Stock Number |
PB-259 328 |
OCLC Number |
02588862 |
Subjects |
Irrigation water ;
Soils--Nitrogen content ;
Groundwater--Pollution ;
Groundwater--Pollution--Washington ;
Water, Underground--Pollution--Washington
|
Additional Subjects |
Irrigation ;
Nitrogen ;
Water pollution ;
Columbia River Basin ;
Leaching ;
Inorganic nitrates ;
Fertilizers ;
Effectiveness ;
Farm crops ;
Sprinkler irrigation ;
Residues ;
Sampling ;
Plant tissues ;
Surface irrigation ;
Water quality management ;
Field tests ;
Potatoes ;
Washington(State) ;
Return flow ;
Irrigation effects ;
Crop response ;
Slow release fertilizers
|
Internet Access |
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
EJBD |
EPA 600-2-76-158 |
c.1 |
Headquarters Library/Washington,DC |
04/10/2014 |
ELBD ARCHIVE |
EPA 600-2-76-158 |
Received from HQ |
AWBERC Library/Cincinnati,OH |
10/04/2023 |
EMBD |
EPA/600/2-76/158 |
|
NRMRL/GWERD Library/Ada,OK |
02/03/1995 |
ESAD |
EPA 600-2-76-158 |
|
Region 10 Library/Seattle,WA |
03/23/2010 |
NTIS |
PB-259 328 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
ix, 141 pages : illustrations, figures, tables ; 28 cm. |
Abstract |
Cooperative field studies have evaluated dissolved-N levels and leaching, and corresponding crop yields, for potato production practices in the Columbia Basin area of Washington. High dissolved-N levels (with resultant high potential for return-flow pollution) were found throughout the growing season in well-managed potato fields, with levels decreased by decreasing fertilization rate, use of slow-release N fertilizers or nitrification inhibitors, or sprinkler application of N fertilizers. Careful water management with solid-set sprinkler proved capable of maintaining dissolved-N within the root zone of subsequent crops by season's end, even on very sandy sites. Alternate-furrow irrigation proved effective in 'trapping' banded fertilizer N within the plant root zone on heavier-textured furrow-irrigated soils. |
Notes |
"Grant No. S-801187." Includes bibliographical references (pages 103-104). |