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

Agronomy programme

Our ongoing programme, conducted in partnership with leading agricultural universities, research institutions and commercial associates, operates across five continents. So far, we have directed over 496 trials, on over 54 crops in 31 different countries.

These studies tested POLY4 on broad acre and high value crops directly against other potassium based fertilizers, both as a straight comparison and as a component in an NPK blend. Results consistently show that POLY4 outperforms muriate of potash (MOP) and sulphate of potash (SOP) in both crop yield and quality, demonstrating the agronomic advantage provided by POLY4's multi-nutrient content. For further details of our agronomy programme, please visit our POLY4 website.

Click here to visit the POLY4 website