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
2 mins

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 in Brazil, 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.