Calcium and Potassium Balanced trace element

Calcium and Potassium are essential elements needed for plant growth. The unique formulation of BioStim7® is a readily available source of Calcium, Potassium and balanced trace elements.


  • Develop stronger plant structures.
  • Increase in overall growth and yields.
  • Increases shelf life.
  • Better taste and flavour.
  • Improves soil quality, structure, beneficial microbial activities.
  • Drought resistance.

The benefits of Biostim7®
(PTRD)micronutrients fertilizer

  • All micronutrients are in a chelated form, to maximize stability and efficiency.
  • PTRD chelates are absorbed by the plant rapidly and efficiently.
  • Micro chelates are fully soluble in water. Compatibility with a wide range of agrochemicals enables tank-mixing, thus reducing the cost of spray operations by minimizing the number of applications needed.

The mechanism of chelates

Chelate is a complex of a micronutrient ion and an organic molecule that holds it, called ligand. As long as the ion is attached to the ligand, it is protected from interacting with other ions in the solution, which might turn it unavailable for plant uptake. As the micronutrient ions are consumed by the plant, more ions are released from the holding ligands, thus becoming available for plant uptake.

Direction for use:

Mix well before use.
It is advisable to try
out the BioStim7® Cal
Pot on a small area
before spraying on the
whole area.

Foliar application:
  • 5 ml/Litre of water. Mix and spray to get good coverage of whole plant.
Soil application:
  • 1 ml/10 L of Water.


  • 10 to 20L/hectare.
  • BioEssence7® 3×1 10-20 L/hectare.

Aquaponic & hydroponic:

  • 4ml/L of Water.


Calcium and Potassium Balanced trace element

Proudly Australian owned

For more information please contact:

PTRD Pty Ltd | ABN: 13 155 748 271
119 Redbridge Rd, Hoya,
QLD 4310, Australia
Mobile: +61 466 834 933

All information provided in this data sheet by our technical representatives is compiled from the best knowledge available to us. However, since data, safety standards and government regulations are subject to change and the conditions of handling and use, or misuse are beyond our control, we make no warranty either expressed or implied with respect to the completeness or accuracy of this information contained herein. PTRD PTY LTD accepts no responsibility whatsoever arising from reliance on the accuracy of this information and strongly recommends that users of this product obtain their own separate technical advice with respect to the use or handling of this product.