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Cationic Selectivity in Soils from Najaf and Dywinya provinces | ||
| journal of kerbala university | ||
| Article 1, Volume 4, Issue 1, 2008, Pages 50-56 PDF (0 K) | ||
| Abstract | ||
| This study was carried out on two soils (Najaf, dywinya) provinces to assess soil selectivity for monovalent cation (Na) than divalent cation (Ca+Mg) by determining of (kg) Gapon cofficient result from Gapon equationSoils treated by three electrolyte solutions with concentration (25, 75, 125) mmole.c.L-1 as (Na : Ca+Mg) system. Their included mixture of (NaCl : CaCl2+MgCl2) salts with these proportions of (Na: Ca+Mg) were (0:5, 1:4, 2:3, 3:2, 4:1, 5:0) respectively. the difference selectivity of these soil related with decrease clay mineral ratio which tend to absorpe (Ca+Mg) than (Na) in D location. while increase salinity degree (ECe) in N location . KG coefficients reached on (0.016, 0.019) mmole.c.L-0.5 respectively. withal the values of correlation factor was revealing no effect on the linear relation ESR,SAR their were (r = 0.98,r = 0.96, r = 0.98, r = 0.88, r = 0.93, r = 0.85) at mentioned concentrations of locations D, N, respectively. | ||
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