Grow Green’s range of Microbe Plus® products are a true fusion of biological and conventional NPK fertilisers.

They have a comprehensive suite of bacteria and fungi providing beneficial microbes. Microbe Plus Zinc has been created via a unique process that digests zinc sulphate with these beneficial microbes. This process has created a powerful and highly effective Zinc supplement. Microbe Plus Zinc is biologically active.

The key benefit of Grow Green’s Microbe Plus Zinc is that it can be applied to the soil or to the foliage to correct a zinc deficiency. This provides excellent flexibility with regards to the method of application.

MicrobePlus zinc benefitA zinc deficiency often results in:

  • Reduced shoot growth
  • Reduced root growth
  • Reduced leaf area
  • Reduced protein synthesis
  • Reduced carbohydrate metabolism
  • Inhibits metabolism of IAA (Zn has a significant role in IAA biosynthesis)
  • Chlorosis
  • Membrane leakage.

Many soils are naturally deficient in Zinc. Grow Green Microbe Plus Zinc provides a cost effective and efficient solution to low Zinc levels.

All the nutrients in Microbe Plus Zinc have been microbially digested using our proprietary blend of beneficial soil microbes. This emulates the process found in nature and converts the nutrients into 100% plant available form.

Microbe Plus Zinc is in metabolic form (proteins, vitamins), and not in general divalent form (Zn++), hence foliar application is highly efficient.

Zinc has the tendency to form bonds with N, O and S-ligands of proteins, thereby activating the functionality of enzymes. Zinc has an association with a large number of enzymes including alcohol dehydrogenase, RNA polymerase and isomerase.
Zinc is essential in carbohydrate metabolism and in protein synthesis.

MicrobePlus zinc benefit foliarActive Ingredients

Zinc sulphate, molasses, fulvic acid, microbes and fungal promoters.

Compatibility and Use

Microbe Plus Zinc 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 we recommend use with Grow Green Profert® or AminoElite™, Microbe Plus® Horticulture or Xtend® plant oil adjuvant when foliar spraying.

Your Grow Green agronomist will assist in developing fertiliser programs specific to your soil and crop. Xtend will maximise the result by reducing spray drift and increasing adherence to the sprayed surface.


Microbe Plus Zinc is suitable for use in a range of crops including pasture, broadacre, cereal and horticultural crops.

Crop Rate/ha* Number of applications
Horticultural crops 4–5L 3-4 foliar applications: post flowering and fruit enlargement stage
Broadacre Winter crops 2–3L 2 foliar applications (mid tillering, and booting to grain filling stage)
Broadacre Summer crops 4–5L 2-3 foliar applications: pre flowering, post flowering and 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.

Typical Analysis

Nutrient Form Analysis (w/v)
Potassium (K) as molasses 0.20%
Sulphur (S) as sulphate 2.30%
Zinc (Zn) as sulphate 5.00%

Shelf life

Microbe Plus Zinc should be stored at ambient temperature.
It should be stored out of direct sunlight, but within a well-lit area so the microbial digestion process continues.
Sedimentation will rise after prolonged storage. As such we recommend use within 12 months of the date of manufacture.


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

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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Download this file (Microbe Plus Zinc brochure_0716.pdf)Microbe Plus Zinc brochure540 kB426
Download this file (Microbe plus Zinc SDS.pdf)Microbe plus Zinc SDS.pdf233 kB486

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For more information about us or our products:
phone +61 7 5463 9900
Free call 1800 355 913

Send us a message

6089 Cunningham Highway
Kalbar, Queensland 4309  Australia

Contact an Australian distributor

We have distributors in:
New South Wales
South Australia

Contact our head office for your nearest distributor
phone +61 7 5463 9900
Free call 1800 355 913
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