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IRRIGATION WATER QUALITY EVALUATION WITH SPECIAL REFERENCE TO WASIT GOVERNORATE | ||
| AL-TAQANI | ||
| Article 1, Volume 22, Issue 1, 2009, Pages 0-0 | ||
| Abstract | ||
| This study was conducted to classify irrigation water used with the addministrative boundaries of Wasit governorate. The classifications followed were the USSL and FAO systems , and then water suitability for irrigation was evaluated accordingly. The results showed that, all water samples fell within the water class (C3 – S1) according to USSL system. Whereas , in FAO system, the samples fell within the class (increase in salinity hazard) for the salinity hazard; within (no hazard, increase in permeability hazard) for soil permeability based on Eciw and Adj. SAR indicators; within (no hazard and increasing toxicity hazard) for toxicity based on ( Na+ + Cl-) concentrations; and within (increasing hazard) class for miscellaneous effects of irrigation water based on bicarbonate. In addition, pH values were within neutral limites. Moreover, the high content of (Ca+2 + Mg+2) comparatively with Na+ ions decrease the hazard of residual bicarbonate (RSC) effects, and hence reduce soil ESP values. | ||
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