Analysis: 12.0% Nitrogen, 38.2% Potassium, 0.7% Sulphur

Bag Size: 25kg, 1200kg

A hard, dust free uniform Potassium nitrate granule developed for broadcast application. After application the granule dissolves easily for rapid plant uptake.


Unlike normal Nitro-K prills (Potassium nitrate), Campbells Nitro-K Ag is not rated as a dangerous good for transport. It is also a stronger, slightly heavier prill than regular Nitro-K, making it ideal for spreading. Nitro-K Ag offers all the benefits associated with Nitro-K greenhouse grade, which is exceptional for high Potassium demand periods during the crop, but being specifically aimed at broadcast applications.


Campbells Nitro-K Ag granule size is homogenous for even distribution and ideally suited to blending, and will provide even distribution of nutrients. Campbells Nitro-K Ag is particularly important for:

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

Campbells Nitro-K Ag is not:

  • Affected by temperature, so nutrients are still available when conditions are cold and wet
  • Is not acidifying to the soil
  • Cannot be 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 Campbells distributor or your local agronomist.