"Skunky" wrote in message
...

That was the confusing part Chuck, on the front of the box it said
sulphate of potash, on the rear it said K2O (potassium oxide) nothing
on the box that mentioned K2SO4!

If you look under the box with the NPK component analysis, you should see a
line labeled "Sources:" That's where it should state Potassium Sulfate,
which is K2SO4.
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Alex
pcalex (at) hotpop.com