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A high value crop nutrition solution

Polyhalite is a naturally occurring mineral that contains potassium, sulphur, magnesium, and calcium plus traces of numerous micronutrients, making it an ideal natural fertiliser. We simply crush it and granulate it to produce POLY4, our flagship low carbon, multi-nutrient product suitable for organic farming.  

POLY4 will help farmers achieve more balanced, sustainable fertiliser practices at a scale not seen in the crop nutrition industry for decades. The product delivers better results than the same blend of nutrients available from conventional sources today, delivering sustainability benefits beyond the nutrient content and setting POLY4 apart from traditional chemical fertilisers.

Driving more productive, sustainable farming

Fertilisers replace the soil nutrients lost when a crop is harvested. But incorrect use of fertilisers can have negative effects on the soil and the wider environment, so more sustainable practices must be found.

All plants use the same 17 essential elements to grow and survive. In order to obtain optimum growth and health, while preventing unintended environmental consequences, the right quantity of the right nutrients must be available at the right time and in the right place.

POLY4 is perfectly suited to the need for this more effective, efficient and sustainable farming. It slowly releases a broad range of nutrients so they are available when the plant needs them most, whilst improving the health of the soil. This more balanced and nutritious diet makes plants stronger, healthier and more productive, and creates a stronger soil structure with a more favourable environment for soil biology, improving erosion and nutrient leaching.

POLY4 is low in waste due to the almost 1:1 ore to product ratio and has a low carbon footprint compared to conventional chemical fertilisers.

The benefits of POLY4:

The benefits of POLY4
The impact of polyhalite in the soil
Neil Fuller

The impact of polyhalite in the soil -

Polyhalite and its impact on soil and crop

Listen to independent agronomist Neil Fuller talk about the positive impact of polyhalite on soil and his hopes for the mineral fertiliser.

The market for POLY4

POLY4 will be a high value product offering benefits to farmers beyond its nutrient value. It will be used as a substitute for, or complement to, existing fertilisers to not only boost crop yield but offer wider soil and environmental benefits.

Consumer, supply chain and global government expectations for improving the sustainability of the food chain are increasing. Trends including a growing global middle-class population (and therefore increased consumption of agricultural products), increasing soil nutrient deficiencies (for example of sulphur and magnesium) and diminishing arable land per person are increasing the need for large-scale production and use of multi-nutrient fertilisers.

POLY4 is expected to attract demand in the global fertiliser market as a result of its superior performance and environmental impact compared to traditional chemical fertilisers, including its low carbon emissions, enhanced nutrient use efficiency and organic certification.


Crop science

Our global agronomy programme provides technical, agronomic and commercial validation for POLY4’s use as an effective multi-nutrient fertiliser suitable for widespread use in commercial farming.

These studies test POLY4 on broad acre and high value crops directly against other potassium based fertilisers, both as a straight comparison and as a component in an NPK blend. Results consistently show that POLY4 outperforms other fertilisers in both crop yield and quality, demonstrating the agronomic advantage provided by POLY4's multi-nutrient content.

Please visit our POLY4 website for more information.

80+
More than 80 crops studied
40+
In 40+ countries
1,800+
Commercial demonstrations
80+
More than 80 crops studied
40+
In 40+ countries
1,800+
Commercial demonstrations