Analysis: 13.6% Nitrogen, 37.4% Potassium

Bag Size: 25kg, 1200kg

A spreadable top dress fertiliser comprising Potassium and Nitrogen recommended for vegetables, fruits, vines, flowers, turf and ornamentals.

Nutrient Forms:

Campbells Nitro-K Prills is a fully spreadable, chloride free fertiliser containing two essential elements for your crops development, providing immediately available Potassium and Nitrogen. Potassium nitrate is the most readily available fertiliser form of Potassium and Nitrogen available.  The Nitrate Nitrogen improves the uptake of Potassium into the plant.


Nitro-K Prills is suitable for application via side-dressing equipment or broadcasting.  Very little irrigation or rainfall is required to dissolve the Prills as it is readily water soluble and it remains in soil solution ready for root adsorption.  Timing of applications are suitable at any time during the season, however Potassium nitrate has a special fit in the later stages of crop development, where the demand for Potassium is greatest.


Campbells Nitro-K Prills is particularly important for:

  • Improving yields
  • Fruit and vegetable size, sugar and colour development
  • Flower development of fruit trees and ornamentals

Campbells Nitro-K Prills are not:

  • Affected by temperature, so nutrients are still available when conditions are cold and wet
  • Acidifying to the soil
  • Lost to the atmosphere like Urea or Ammonium based fertilisers


General dry spread application rates for horticultural crops are between 50 to 250 kg/ha.  As with any fertiliser program, it is best to seek advice from your Campbell’s distributor or your local agronomist.