Gallery

Attending Potatoes in Practice , UK. Our team are on hand to share the latest POLY4 trial findings.

Crop improvements from POLY4 can be visible during the growing season – our crop trials in the UK.

Dr Kiran Pavaluri, Senior Corporate Agronomist, assessing potatoes grown in the UK.

Dr Tim Lewis, Agronomy & Soil Science analyst, discussing a barley trial with Dr Rob Lillywhite at the University of Warwick.

Growing barley – our trials at Teasagc improved yield with POLY4.

Nuts require fertilizers that contain calcium, such as POLY4, to maximise yield.

Our cotton trial in Hubei, China is one of many trials our R&D Director, Robert Meakin, visits to learn how POLY4 performs.

Our crop trials with chili peppers, that require fertilizers with a low chloride content, such as POLY4.

Our POLY4 granules are made using polyhalite that is crushed, screened and bound with an organic binder.

Paddy rice is the fourth largest crop produced in the world – POLY4 supports optimal growth across Asia.

Plant measurements during barley growth can give early indications that POLY4 improves plant growth.

POLY4 can be used both in the field or greenhouse to grow high-value crops like cherry tomatoes.

POLY4 is a suitable fertilizer for growing potatoes as it supplies potassium and magnesium and improves dry matter content.

POLY4 research and development programme is global so that we can demonstrate the value of our product in different conditions such as corn in China.

POLY4 trials on potatoes in India are collaborations between local experts and our R&D team.

Preparing pots for POLY4 trials that will demonstrate the value of multi-nutrient fertilization.

R&D Director, Robert Meakin, inspecting potatoes grown with POLY4 in the UK.

Research on POLY4 is not just on trials. We have assessed POLY4's characteristics and compatibility with researchers at the University of Limerick.

Robert Meakin, R&D Director, visiting our POLY4 citrus trials in Sichuan, China.

Sichuan, China has a long history of citrus growing in the world making it ideal for testing POLY4.

Sirius Minerals research and development team work collaboratively with industry experts on POLY4 trials.

Sirius team attend events around the world to talk about the benefits of POLY4.

Tea plants, such as these in Yunnan, China, are chloride sensitive and require nutrients to be supplied from low-chloride fertilizers like POLY4.

Testing POLY4 granule crush strength is important for maintaining quality and delivering a product that is practical for farmers.

Trials in Yunnan, China look to assess the benefits of POLY4 on coffee plant yield and quality.

Trials on sugarcane in Brazil demonstrate the value of calcium and sulphur as well as potassium and magnesium all of which are supplied by POLY4.

We always want to hear what farmers have to say about POLY4 and its benefits.

We ensure our POLY4 trials are run to the highest standards for sharing world-class research findings.

Wheat is the third biggest crop produced globally. POLY4 has been shown to increase wheat yields.

Working in partnership with world-class researchers, our POLY4 trials consistently deliver industry leading research.

Working with Fera Science, we test how POLY4 works on a range of European crops.