Sirius Minerals’ research and development programme carries out a number of trials in North America including Canada and United States.
Sulphur, magnesium and potassium deficiencies in major agricultural areas.
Crop output from the region is expected to increase by 10%, led by corn and soybean.
Need for POLY4
Large regions of North America grow crops that are sensitive to chloride toxicity. Over eight million hectares of chloride sensitive crops are produced in the United States alone. POLY4 is a premium specification product that supplies essentially chloride-free potassium, along with sulphur, magnesium and calcium.
Read more about findings of our trials in this region by clicking the icons below.
Regional soil challenges
- Deficient in one nutrient supplied by POLY4
- Deficient in two nutrients supplied by POLY4
- Deficient in three nutrients supplied by POLY4
- No data/deficiencies