The Benefits of Polysulphate are Clear to See

Polysulphate's natural combination of key nutrients including sulfate, potassium, magnesium, and calcium make it an ideal choice of fertilizer.

November 1, 2021

When it comes to understanding the benefits to a plant of a mineral fertilizer such as Polysulphate, there is nothing quite like seeing it with your own eyes. In a recent experiment, 5 different fertilizer treatments were applied to maize plants. The treatments were chosen to demonstrate the effect of Polysulphate on the plants.


15-day-old corn plants showing the effect of different fertilizer treatments.

15-day-old maize plants showing the effect of different fertilizer treatments.


What is Polysulphate

Polysulphate is a unique, natural, organic, multi-fertilizer containing 4 key plant nutrients: sulfur, potassium, magnesium, and calcium. Polysulphate is a soluble, easily absorbed, cost effective answer to crop nutrition. Innovative and highly versatile, this natural, multi-nutrient mineral is low in chloride and crop safe, suitable for use alone or in blends and compound fertilizers.


Testing Different Fertilizer Treatments

There are 5 different treatments under examination:

  • Treatment 1 – No fertilization
  • Treatment 2 – Granular Polysulphate
  • Treatment 3 – Standard Polysulphate
  • Treatment 4 – Solution (lacking K, Mg, Ca and S)
  • Treatment 5 – Solution + calcium sulfate, magnesium sulfate, and potash sulfate

The photographs, taken when the plants are 15 days old, show the dramatic differences between a plant with no fertilization and a plant with Polysulphate.

The maize plant grown with Standard Polysulphate is taller, bigger and has healthier looking leaves than those in each of the other treatments.