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MagPhos

Incorporates dolomite in BioAgPhos. Ideal for soils that need phosphorus, sulphur, calcium, and magnesium, such as pastures and grazing systems where there is a risk of grass tetany.
Phosphorus 6.0% | Sulphur 5.0% | Calcium 28.0%

Phosphorus 0% water soluble and a minimum of 35% Citric Acid and 65% Formic Acid solubility. Immediate and sustained release phosphate fertiliser made from high-grade reactive phosphate rock composted with BioAg’s proprietary phosphate digester. Combined with dolomite to provide magnesium.

Delivers immediate and sustained release of phosphorus making both annual and biennial applications appropriate.

  • A natural and sustainable alternative to conventional fertilisers
  • Reduces nutrient losses due to common issues such as leaching and lock up
  • Can be applied at any time of the year.
  • Safe for use on all areas including waterways
  • Small particles enable even distribution; beneficial given P is not mobile in soils
  • BioAg MagPhos is a certified organic input.

Magnesium is important for animal health, and prevention of grass tetany. Read more about Magnesium Deficiency.

To purchase

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

MagPhos resources

  • Soil-nutrient relationships

    Nutrients, such as calcium and magnesium, may be supplied to plants solely from reserves held in the soil. Others like phosphorus and nitrogen are added regularly to soils as fertiliser to be withdrawn as needed by crops.

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  • Challenging terrain

    Since the 1950s, fertiliser and ameliorants have been spread using planes and more recently helicopters. In hilly and remote terrain this is common, allowing farmers better use of more of their land. While sometimes it isn’t easy to locate someone to do aerial spreading...

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  • Building sustainability into our business

    ‘Doing things better’ is a key value for BioAg. This extends to building sustainability into our products and business processes through harnessing innovation and new technologies.

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  • Reactive phosphate rock fertiliser

    The phosphate rock used in agriculture is known by a number of names. Reactive phosphate rock (RPR), direct application phosphate rock (DAPR), mineral phosphate, soft rock, hard rock. Variants on all of these are names or brands used across the fertiliser industry. Phos...

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