Microbe Plus® Citrus

Product Description and Characteristics

Microbially active foliar fertiliser fortified with macro and micronutrients.

Microbe plus® Citrus is a foliar fertiliser that has been specifically designed for application to citrus trees — but can be equally effective for a range of horticultural crops.


In the citrus industry foliar fertiliser can improve yields through direct application of nutrients to where they will deliver the fastest response. The efficiency of foliar application can be greatly improved by integrating with microbial cultures, and microbial metabolites.

Microbial metabolites are important constituents of Microbe Plus Citrus. They are major building blocks of plant cells and bio-stimulants which have positive effects on growth, yield and quality, while mitigating potential damage from exogenous stress factors such as heat, frost, salinity and chemicals.

In the commercial citrus industry, soil K uptake has limitations typically due to cation imbalances in the soil. Foliar K absorption is far more efficient, helping to deliver better yields. Calcium is a constituent of the cell walls in the form of calcium pectate. Calcium root uptake is often hindered by poor cation exchange and poor calcium: magnesium ratios in the soil—ratios that are important to overall soil structure. Foliar application of calcium is a widely accepted practice. Microbe Plus Citrus contains calcium in organic acid chelated form, which has more effective penetration through the leaf surface allowing calcium to be more readily available to the tree.



  • Microbe Plus Citrus delivers a complete blend of macro and micro nutrients
  • Absorption of nutrients is enhanced by improved penetration of ions through the leaf cuticle layer via organic acid chelation
  • Improves resistance of the plant to various stress factors
  • Improves fruit quality, fruit size, colour and shape
  • Rapidly corrects macro and micro nutrient deficiencies


Microbe Plus Citrus is suitable for use in horticultural crops as a foliar application during the critical growing period. Crops include citrus, almond, walnut, grapes, apple, tomato, potato, mango, banana, kiwi fruit, and many vegetables.

CropRate/ha*Number of applications
Horticultural crops4 to 5L3-4 foliar applications, post flowering and fruit enlargement stage
Broadacre Winter crops2-3L2 foliar applications (mid tillering and booting - grain filling stage)
Broadacre Summer crops4-5L2-3 foliar applications; pre flowering, post flowering and grain filling stage
Annual and perennial pasture3-4L3-4 foliar applications post grazing
*To be diluted in a minimum of 100L of water per hectare. We recommend foliar spray to the point of run off.

NutrientFormAnalysis (W/V)
Nitrogen (N)as nitrate7.00%
Phosphorus (P)as water soluble0.10%
Potassium (?)as nitrate
as phosphate
as molasses
Calcium (Ca)as nitrate4.60%
Magnesium (Mg)as nitrate1.10%
Zinc (Zn)as nitrate1.80%
Manganese (Mn)as nitrate0.60%
Iron (Fe)as sulphate0.02%
Boron (B)as sodium borate0.042%
Molybdenum (Mo)as sodium molybdate0.015%
Cobalt (Co)as sulphate0.007%

Microbe Plus Citrus can be mixed and applied with most commonly used pesticides, however, Microbe Plus Citrus should not be used with selected herbicides. We strongly recommend checking labels for compatibility as well as testing a small area prior to widespread application

Microbe Plus® Citrus is available in the following containers and prices.

Price1000 L.20 L.
Litre Price [ex GST]$4.90$5.25
Recommended Retail (RRP) [ex GST]$4,900$105
Litre Price [inc GST]$5.39$5.78
Recommended Retail (RRP) [inc GST]$5,390$116
Product prices landed in store as of March 2019
*Our range of custom blend products remain available. Price on application.

  • 12 months from the manufacturing date
  • Microbe Plus Citrus should be stored at ambient temperature
  • Preferably store away from direct sunlight, but within a well lit area so that the microbial digestion process continues.


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