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

  • Quality outcomes in the Upper Murray

    Technical Sales Agronomist, Rebecca Bingley of Ag Warehouse Kiewa has advocated for BioAg fertilisers and liquids for her customers in the Upper Murray. “BioAg has given growers more opportunities to improve their soil health and nutrition. The products have a high conc...

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  • Post-harvest – a key period for orchards and vineyards

    Post-harvest is an important period for perennial tree crops and vines. This is when carbohydrates and nutrient reserves (like nitrogen) are replenished prior to dormancy. These reserves are then used at bud or flower burst and the start of the next season. Post-harvest...

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  • Powered by Watts

    Antony Isles, a BioAg client of 10 years, is delighted that his 2,500 acre ‘Green Trees’ property at Black Springs, south of Oberon, is powered by Watts, not Amps. Watts being BioAg Agent Andrew Watt. Andrew and his wife Rhonda have been working with BioAg for 22 years,...

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  • Duck island connection

    There is a natural connection between Duck Island and BioAg. We both question convention and apply solutions to problems based on evidence. Duck Island is a large grazing property in the Upper South East of South Australia, situated on the saline soils of the Ninety Mil...

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