Microbe Plus® Potassium has been created via a unique process that digests potassium citrate together with trace elements, carbohydrates and selected cultures. The result is an excellent nutrient supplement.

Utilizing a unique digestive process, Microbe Plus Potassium is biologically active. It will help rectify deficiencies quickly and effectively.

Microbe Plus Potassium has been designed for foliar application to horticultural crops and grain crops during the fruit/seed-fill stages.

Potassium is essential for the translocation of sugars into the fruit, and to complete the starch formation process. Adequate supply of potassium is vital during the fruit filling stage.

Most soils are not nutritionally balanced. This results is less than optimal uptake of potassium. Potassium citrate (chelated form) is highly beneficial as a foliar application since it can readily mobilize into the internal tissues and translocate readily within the plant.

Other benefits of using Microbe Plus Potassium

  • Enhance potassium mobility
  • Potassium citrate does not interfere with sap nitrogen levels during the critical fruit filling stage
  • Enhance citric acid cycle and energy production (ATP).
MicrobePlus Potassium benefits

Microbe Plus Potassium provides high concentrations of potassium in a chelated form of citrate. Potassium can become locked and trapped between clay particles in the soil, therefore foliar application of Microbe Plus Potassium will overcome this issue.

Active Ingredients  

Potassium in liquid form with beneficial plant and soil beneficial fungi and bacteria.

Compatibility and Use

Microbe Plus Potassium can be mixed and applied with most commonly used pesticides and fungicides, however, we strongly recommend checking labels for compatibility as well as testing in a small area prior to widespread application.

Optimising results

For optimum results use with Grow Green’s Xtend® plant oil adjuvant. Xtend will maximise the result by reducing drift and increasing adherence to the sprayed surface.


Microbe Plus Potassium is suitable for use in a range of horticultural and broadacre crops including nuts, apple, citrus, potato, grapes, pasture, dairy and sugarcane.

Crop Rate/ha* Number of applications
Horticultural crops 4 to 5L 3-4 foliar applications, fruit enlargement stage
Broadacre Winter crops 2-3L 1 foliar application, grain filling stage
Broadacre Summer crops 4-5L 2 foliar applications, grain filling stage

*To be diluted in a minimum of 100L of water per hectare.
We recommend foliar spray to the point of run off.
Pending soil and leaf analysis, application rates may vary.
The above should be used as a guide only.
Avoid spraying in high temperature and high UV Conditions.

Shelf life

Microbe Plus Potassium should be stored at ambient temperature.

It is recommended to be stored within a well lit area so that the microbial digestion process within the product continues.
Sedimentation will rise after prolonged storage. As such we recommend use within 12 months of the date of manufacture.


Microbe Plus Potassium is available in 20L and 1000L containers.

Typical Analysis

Nutrient Form Analysis (w/v)
Potassium (K) as citrate 11.00%
Sulphur (S) as sulphate 0.10%
Zinc (Zn) as sulphate 0.022%
Iron (Fe) as sulphate 0.004%
Boron (Bo) as sodium borate 0.014%
Molybdenum (Mo) as sodium molybdate 0.0017%
Cobalt (Co) as sulphate 0.001%

For information about specific application rates, or use with specific crops, please contact us:
phone: +61 7 5463 9900 OR 1800 355 913
Email: This email address is being protected from spambots. You need JavaScript enabled to view it.

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phone +61 7 5463 9900
Free call 1800 355 913

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6089 Cunningham Highway
Kalbar, Queensland 4309  Australia

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We have distributors in:
New South Wales
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Contact our head office for your nearest distributor
phone +61 7 5463 9900
Free call 1800 355 913
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