Main Title |
Influence of trickle and surface irrigation on return flow quality / |
Author |
Wierenga, P. J.
|
CORP Author |
New Mexico State Univ., University Park. Dept. of Agronomy.;Robert S. Kerr Environmental Research Lab., Ada, Okla. |
Publisher |
Robert S. Kerr Environmental Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency ; For sale by the National Technical Information Service, |
Year Published |
1977 |
Report Number |
EPA-600/2-77-093; EPA-S-803156 |
Stock Number |
PB-270 650 |
OCLC Number |
25398328 |
Subjects |
Microirrigation ;
Irrigation water ;
Runoff irrigation ;
Soils, Salts in ;
Trickle irrigation
|
Additional Subjects |
Irrigation ;
Water quality ;
Surface irrigation ;
Sprinkler irrigation ;
Field tests ;
Salinity ;
Soil water ;
Concentration(Composition) ;
Leaching ;
Soil properties ;
Tables(Data) ;
Inorganic salts ;
Hydraulic conductivity ;
Efficiency ;
Correlation techniques ;
New Mexico ;
Return flow ;
Trickle irrigation
|
Internet Access |
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
EJBD |
EPA 600-2-77-093 |
|
Headquarters Library/Washington,DC |
03/21/2014 |
ELBD ARCHIVE |
EPA 600-2-77-093 |
Received from HQ |
AWBERC Library/Cincinnati,OH |
10/04/2023 |
EMBD |
EPA/600/2-77/093 |
|
NRMRL/GWERD Library/Ada,OK |
02/17/1995 |
ESAD |
EPA 600-2-77-093 |
|
Region 10 Library/Seattle,WA |
03/23/2010 |
NTIS |
PB-270 650 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
xviii, 158 pages : illustrations, graphs ; 28 cm. |
Abstract |
A field plot study was conducted to determine the effects of controlled surface irrigation and trickle irrigation on the quality and quantity of irrigation return flow. The surface-irrigated plots showed an increase in salt concentration with depth to the clay-sand interface. Below the clay-sand interface at 80-100 cm, a sharp decrease in salt concentration was observed. It appeared that a larger change in soil salinity was produced by altering irrigation frequency than by changing irrigation efficiency. Irrigating when 50 percent of the soil water had been depleted was the irrigation frequency most conducive to salt retention by the soils. Trickle irrigation was effective in controlling the volume of return flow, while maintaining relatively low salinity levels in the soil around the trickle emitters. Accumulated salts were readily moved away from trickle lines by preplant irrigation or rainfall. The mean salt concentration of the irrigation return flow, as estimated from deep soil solution samples, agreed well with the average salt concentration of the groundwater to a depth of 11 meters. Below 11 meters the salt content of the groundwater decreased. |
Notes |
Chiefly tables. Includes appendixes. Issued May 1977. Prepared by Department of Agronomy, New Mexico State University, Las Cruces, New Mexico, under Grant no. S-803156 (Formerly 13030 GLM). Includes bibliographical references (pages 105-106). |