Analysis: 7.3 Nitrogen, 11% Phosphorus, 28% Potassium, 2.8% Sulphur, 0.21% Iron, 0.1% Manganese, 0.08% Boron, 0.06% Zinc, 0.008% Molybdenum

Bag Size: 25kg

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


Campbells Diamond Red 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, and trace elements.

Diamond Red 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 Red is ideal for plants with a high phosphorus and potassium demand during flowering and fruiting.

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 Red 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.

Campbells Diamond Red is particularly important for:

– For plants with high phosphorus and potassium demands during flowering
– 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 Red 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 Red and Campbells Nitro-Cal, applied during alternate fertigations. As with any fertiliser program, it is best to seek advice from your Campbells Diamond  Red distributor or your local agronomist.