POLY4 provides a naturally occuring combination of four essential macro-nutrients and has been proven to increase yield and quality in high value and broad acre crops.

Polyhalite

POLY4 explained

Polyhalite is a naturally occurring evaporite mineral comprising potassium, calcium, sulphur and magnesium. POLY4 is the trademark name of our polyhalite products which deliver these four essential nutrients in granulated or powdered form.

Product video

POLY4

Agronomy

Presentations

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POLY4 brochure

SIRIUS MINERALS

SALES AGREEMENTS

POLY4

GLOBAL MARKET

Sirius Minerals's suite of multi-nutrient products have significant market potential as a bulk source of essential nutrients, a premium chloride free fertilizer and as part of an NPK blend.

Proven benefits

Agronomy programme

Our global programme has proven that POLY4 is a highly effective fertilizer, suitable for widespread commercial use on broad acre and high value crops.