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| Definition | : | Sodium Adsorption Ratio |
| Category | : | Academic & Science » Chemistry |
| Country/ Region |
: | Worldwide
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| Popularity | : |
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Sodium Adsorption Ratio (SAR) is an irrigation water quality parameter used in the management of sodium-affected soils. It is a ratio of the sodium (detrimental element) to the combination of calcium and magnesium (beneficial elements) in relation to known effects on soil dispersibility.
SAR is a measure of the amount of sodium (Na+) relative to calcium (Ca2+) and magnesium (Mg2+) in the water extracted from a saturated soil paste. It is also used as an indicator used to identify salinity of the soil.
The full form of SAR is Sodium Adsorption Ratio
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