An immediate and sustained release phosphate fertiliser made from high-grade reactive phosphate rock, composted with BioAg’s proprietary phosphate digester.
Phosphorus 12.7% | Sulphur 1.0% | Calcium 35.0%

Highly soluble, with a minimum of 35% citric acid and 65% formic acid solubility. Around one-third of the phosphorus (P) is immediately available, while the remainder is slowly digested and released. Both annual and biennial application is appropriate.

  • Reduces nutrient losses due to common issues such as leaching and lock up
  • Small particles enable even distribution; beneficial given P is not mobile in soils
  • A natural and sustainable alternative to conventional fertilisers
  • Improved phosphorus availability compared to conventional reactive rock phosphates
  • Suited to a broader range of soil types and growing conditions
  • Well suited to blending with ameliorants such as lime, gypsum, and compost
  • Safe for use on all areas, including waterways
  • Independent analysis shows that 100% of the phosphorus is bioavailable / plant accessible
  • BioAgPhos is a certified organic input.
More information

BioAgPhos provides capital P in cropping programs and complete P supply in grazing and permanent plantings like trees and vines. It is ideal where an agronomically sound and cost-effective source of phosphate is required and can be applied at any time of the year.

To purchase

Contact your Area Manager today for a tailored plan for your crop.

BioAgPhos resources

  • BioAgPhos® – enhanced reactive phosphate rock (RPR) fertiliser

    Phosphate rock is a naturally occurring mineral that is used to manufacture water-soluble phosphate chemical fertilisers. As much of the phosphate rock mined around the world has little to modest benefit as a directly applied fertiliser, the phosphate (P) in the rock is...

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  • Impactful results even in challenging seasons

    In BioAg’s Winter/Spring Newsletter 2022, we wrote about a leading Australian wine producer seeking ways to improve the yield and quality of their organically grown grape crop. BioAg readily accepted this opportunity/challenge and has been working with the producer in t...

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  • Distributor Spotlight – Ag Warehouse Bega

    BioAg products have been well supported on the south coast of NSW for many years. Ag Warehouse recently purchased Bega Agricultural Services to become Ag Warehouse Bega.

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  • What Rock Phosphate really Rocks? BioAgPhos vs other Rock Phosphates

    Phosphorus (P) is one of the important nutrients for plant growth. It is vital for seedlings and young plants as it is a component of plant cells, essential for cell division and development of the growing tip of the plant.

    Read more