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Sulphate of Potash

Also known as SOP and or Potasium Sulphate

  • 42%
  • 18%

SOP is a Potassium source which has a low Salt index. It is ideal for Salt sensitive crops.

In NZ, SOP has traditionally been used in Horticultural and market garden-based crops such as potatoes. It is now used by pastoral farmers who are wishing to apply a low Salt index potassium while also applying the key nutrients of Sulphate Sulphur.

Why use SOP

SOP serves as a Potassium source with a low Salt index and is ideal for Salt sensitive crops that also require Sulphur.

Safety Information

Material Safety Data Sheet


Potassium, Sulphur

Caution When Mixing

SOP can be mixed with most fertilisers however care should be taken around bulk densities.