CIVIL SNAPS – IRRIGATION ENGINEERING

CIVIL SNAPSIRRIGATION ENGINEERING

 

Types of sodium water

 

The quality of irrigation waters differ in various regions, countries and locations based on how the groundwater has been extracted and used, the rainfall intensity and subsequent aquifer recharge. The use of groundwater for agriculture in hot arid countries where rainfall is scarce leads to increase groundwater salinity and limits the selection of crops for cultivation. It is therefore important to determine the irrigation water quality. The concentration and composition of soluble salts in water determine its quality for irrigation. Four basic criteria for evaluating water quality for irrigation purposes are described, including water salinity (EC), sodium hazard (sodium adsorption ratio-SAR), residual sodium carbonates (RSC) and ion toxicity.

 

SAR

Types of Water

0 โ€“ 10

Low sodium water

10 โ€“ 18

Medium sodium water
18 โ€“ 26

High sodium water

ย >26

Very high sodium water

 

CIVIL SNAPS – IRRIGATION ENGINEERING

 

 

 

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