Record Display for the EPA National Library Catalog

RECORD NUMBER: 30 OF 46

OLS Field Name OLS Field Data
Main Title Irrigation Management for Control of Quality of Irrigation Return Flow.
Author Kin, Larry G. ; Hank, R. John ;
CORP Author Utah State Univ., Logan. Dept. of Agricultural and Irrigation Engineering.
Year Published 1973
Report Number EPA-13030-FDJ; 13469,; R2-73-265
Stock Number PB-222 773
Additional Subjects ( Irrigation ; Subsurface drainage) ; ( Subsurface drainage ; Mathematical models) ; Hydrology ; Salinity ; Soil water ; Evapotranspiration ; Management planning ; Leaching ; Flow rate ; Computer programs ; Arid regions ; Return flow
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB-222 773 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
Collation 321p
Abstract
The models described in the report were developed to aid in the control of irrigation return flow. Field studies tested the possibilities for using the unsaturated soil profile including the crop root zone as a temporary salt reservoir and providing excess water for leaching and salt discharge when desired. Two models were developed for describing flow of water and salt through the soil with extraction of water by evapotranspiration. One model was designed for use as an irrigation management tool while the other model was initially intended to provide a detailed understanding of the water and salt flow through the soil. Timing of irrigation was tested as a management variable.