Do Blueberries prefer Sulphate or Potash?

Dear Ross,

Selecting a fertiliser for blueberries can be complex at times. The plant doesn't like nitrates, the main inorganic source of nitrogen, but prefers its nitorgen in the form of ammonium sulfate or urea or from manures. Nor does it like chlorides, preferrings its potassium and even ammonium in the form of sulfate. Therefore you can use Sulphate of Potash on your blueberry bushes.