Analysis: 19% Nitrogen, 8.0% Phosphorus, 16.0% Potassium, 1.7% Sulphur, 1.2% Magnesium, 0.04% Iron, 0.02% Manganese, 0.01% Boron, 0.020% Zinc, 0.011% Copper, 0.001% Molybdenum

Bag Size: 25kg

A fully soluble fertiliser containing nitrogen, phosphorus, potassium, sulphur, magnesium and trace elements recommended for vegetables, fruits, flowers, turf, vines and ornamentals grown in soil.


Campbells Diamond 19 Carat is a fully water soluble, chloride free fertiliser containing the required nutrients for consistent growth and development of a range of plants providing immediately available nitrogen, potassium, phosphorus, sulphur, magnesium and trace elements.

Diamond 19 Carat is a soluble fertiliser alternative to dry spread complete fertilisers and can become the basis for a complete fertiliser program.

The specific formulation of Diamond 19 Carat is ideal for plants during their establishment and early growth stages, where development of new shoots and leaves is the main goal or for crops that require additional nitrogen and phosphorus.

The addition of trace elements helps to maintain balanced nutrition and is present mainly in the chelated form for maximum efficiency and uptake.


Campbells Diamond 19 Carat is suitable for application via irrigation systems (fertigation) in soil grown crops and for foliar application.
It dissolves rapidly and completely and remains in solution ready for root adsorption or is taken in via leaf surfaces.

  • Establishment and early growth or where plants require additional nitrogen and phosphorus
  • Additional vigour or development of new shoots, canopies or foliage
  • Situations where fertigated or foliar complete fertilisers are the preferred option.


General fertigation rates for horticultural crops are between 25-70 kg/ha in field crops. When applying Diamond 19 Carat through the irrigation system more frequently and smaller applications guarantee the nutrients are supplied to the plants without being lost due to leaching or excessive rainfall.

Foliar applications at a concentration of 0.25-0.5%. A more complete nutrient program would include both Campbells Diamond 19 Carat and Campbells Nitro-Cal, applied during alternate fertigations. As with any fertiliser program, it is best to seek advice from your Campbells Diamond 19 Carat distributor or your local agronomist.