The desorption rate of water or 1.0mo/L KNO3 was very low (40%) and the desorption capability of KNO3 to adsorbed SO_4~2- of acidic soils was weaker than that of nearly neutral soils, indicating that acidic soil held and fixed SO_4~2- more firmly.

 
  • 水和1.;0 mol/L KNO_3對土壤吸附態(tài)SO_4~(2-)解吸率甚低(<40%25)
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