Fall Fertility Strategy: The Science Behind Polysulphate®

Looking to improve your fall fertility strategy? In this interview with Crop Life’s Hilary Winn, ICL Agronomist Tony Donoho explains why more farmers are choosing Polysulphate® as a smarter, more sustainable sulfur source.

They dive into the agronomic science behind Polysulphate®—a natural mineral fertilizer that delivers sulfur, potassium, magnesium, and calcium—and how it compares to conventional products like ammonium sulfate or elemental sulfur.

Watch to learn:
✔ What makes Polysulphate® different—and better—for fall application
✔ Why applying it in the fall reduces nutrient loss and improves spring efficiency
✔ How fall-applied Polysulphate® supports higher yields in corn
✔ Real-world results from the field and what they mean for ROI

Key Benefits Recap:

• Apply in fall to ease your spring workload and be field-ready

• Spread faster and further with excellent granule uniformity

• Reduce nutrient loss with gradual sulfur release

• Improve nitrogen efficiency and overall crop performance

• OMRI-approved for organic use and sustainable fertility programs