Or confuse ag lime with dolomite...a good way to send mg levels way high.
Bone meal will send P up, along with sodium.
For Nitrogen add seed meal or feather meal.
Elemental sulfur doesn't have the aluminum. Or, Espoma makes a "soil acidifier" (for hydrangeas)--which is basically the same stuff--just not as strong.
Logan labs does a soil test for $25.
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