Triple Superphosphate


  • N:0
  • P:20%
  • K:0
  • S:1.5%
  • Ca:16%
  • Mg:0
Hastings Store – Regular shipments throughout Spring, Summer and Autumn
All Other Stores – Currently shipping to order.


Categories: , , , ,
20% P, 1.5% S, 16% Ca
Supplied ex Hastings Warehouse or through direct shipment to any NZ port
Supplied in bulk or 1250 KG bags (included in price)
Use in: Summer, Autumn, Spring
Click here for freight rates to your farm

Products FAQs

Why Use Triple Super:

  • It is a cost effective form of straight Phosphate and well suited when higher applications of water-soluble P are required.
  • It is a high analysis fertiliser containing 20% Phosphate content. Therefore, lower application rates can be used compared to common alternatives resulting in significant savings in freight and application costs.
  • Generally contains lower fluoride, cadmium and other heavy metal content than more traditional phosphate applications. The heavy metals in Phosphate fertilisers stem from the Phosphate Rock being used in the manufacturing process, less Phosphate Rock is used in the manufacturing process of TSP resulting in lower heavy metal levels.
  • It is fully granulated and blends well with the majority of other products.

Precautions when applying Triple Super:

  • No precautions

Phosphate's role in crops and pastures:

Phosphorus is an essential compound of Adenosine Triphosphate (ADP), the energising component driving plant development. Phosphorus plays an important role in photosynthesis as it enables plants to store and metabolise sugars, (the energy created in photosynthesis).The physical attributes in plants that are aided by phosphorus are:

  • Larger root growth.
  • Earlier formation of plant shoots.
  • Improved stalk and stem strength in crops.
  • Improved fruit, vegetable and grain quality.
  • Promted seed formation in crops.
  • Increased resistance to moisture and colder temperatures.

When to use

Summer, Autumn, Spring

Calcium's role in crops and pastures:

  • Participates in metabolic processes of other nutrients uptake.
  • Promotes proper plant cell elongation.
  • Strengthen cell wall structure – calcium is an essential part of plant cell wall. It forms calcium pectate compounds which give stability to cell walls and bind cells together.
  • Participates in enzymatic and hormonal processes.
  • Helps in protecting the plant against heat stress – calcium improves stomata function and participates in induction of heat shock proteins.
  • Helps in protecting the plant against diseases – numerous fungi and bacteria secret enzymes which impair plant cell wall. Stronger Cell walls, induced by calcium, can avoid the invasion.
  • Affects fruit quality.
  • Has a role in the regulation of the stomata.


Triple Super is a high analysis phosphate source containing 20.5% P.

Product Downloads

Triple Superphosphate flyer 2020