| Main Title |
Significance of Rainfall on Salt and Sodium Accumulations under Irrigation. |
| Author |
Fine., Lawrence O. ;
|
| CORP Author |
South Dakota State Univ., Brookings. Dept. of Plant Science. |
| Year Published |
1974 |
| Report Number |
DI-14-01-0001-1862; OWRR-A-020-SDAK; W74-07743 ; OWRR-A-020-SDAK(1) |
| Stock Number |
PB-232 165 |
| Additional Subjects |
Water pollution ;
Irrigation ;
Water quality ;
Water pollution standards ;
Rainfall ;
Interactions ;
Salinity ;
Dilution ;
Soils ;
Cation exchanging ;
Tolerances(Physiology) ;
Salts ;
Anion changing ;
Sodium carbonates ;
Adsorption ;
Measurement ;
Irrigation water
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB-232 165 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
22p |
| Abstract |
Since irrigation water quality standards were established for use under arid conditions, it has been rationalized that they may be too stringent where natural precipitation may have a modifying effect on either or both of the sodium and salinity hazards. The rationalization was studied in a 17 inch rainfall belt using groundwaters with electrical conductivities of about 2000 micromhos per cm at 25C and having sodium adsorption ratio (SAR) values of about 10. The results determined from the field and plot experiments indicate that there is no justification for raising tolerable sodium adsorption ratio levels in irrigation water used in this rainfall belt; rather it showed that there may be reason for lowering them from three to four units. |
