Do you know what would be tying up Hydrogen to the point of zero? This is a fescue lawn with a Ph of 7.7 which I know is high. Is the hight Ph the main reasons of no hydrogen. The CEC is 12.8 and Cation Saturation is as follows... %K 4.0 %Ca 78.7 %Mg 16.1 %H 0 %Na 1.4 I figured it was the high Ph but what exactly ties up hydrogen...richer alkaline soils ??? Your advice is welcomed.