highly significantp = 0.0003
The correlation between acidification and solubilization was moderately positive and highly significant (R = 0.391; p = 0.0003), confirming that pH reduction favors K release from phonolites ( Figure 2 ).
The correlation between acidification and solubilization was moderately positive and highly significant (R = 0.391; p = 0.0003), confirming that pH reduction favors K release from phonolites ( Figure 2 ).