I recently planted my 6 blueberry bushes and had my soil tested at the local university and 2 of my soil sample came back with excessive soluble salt. (1) was 2.2-Ph 3.7, (2) was 1.1-Ph 5.5 , which they said both were high and the 3rd which I think are my potted blueberries (3) is low at 0.4-Ph 4.9 . Can anyone tell me how to correct?. I am going to have the soil tested again to make sure I have the test correct with the locations I put in each box. Didn't do good job of labeling the 1st time. Want to get it right!