Although there were no significant differences in the exchangeable Na and K contents among the AL, MQW and MCW applications, the exchangeable Na content increased significantly, but the exchangeable K content decreased with liming compared with the control. Increasing the application rates of liming materials resulted in an increase of the exchangeable Ca content of soil; however, no significant effects of application rates on exchangeable Mg, Na and K were obtained.
These results were in good agreement with the results in the literature.Kowalenko and Ihnat (2010)reported that extractable Ca increased with increased limestone rates, while the amounts of extractable Mg, Na and K decreased. Lemme et al. (2014) also found no effect of lime on the extractable K content of soil