use potash in a sentence.
Specifically, the area is a collection of evaporation ponds for the production of potash, an excellent fertilizer.
Similar debates have happened with respect to developing Canada's oil and potash resources (in the interior).
In fact the original recipe indicated making potash, putting it in distilled water, and filtering out the physical chunks of ash.
As far as I understand no foreign countries laid claim to Canada's oil and potash resources in the interior.
Then don't get me started on NPK inputs - cast an eye over Potash or Phosphate stocks recently?