Platform for biological agriculture.

  • Activates plant nutrient uptake
  • Improves drought tolerance
  • Provides protective shield to root system
  • Suitable after fumigation
  • Dissolves hard to capture nutrients

Microbes out compete pathogens & improve root health
MicroPlus microbes colonise the root zone providing phosphorus solubilisation, nitrogen fixing, activation of nutrient uptake, root health, drought tolerance and humus production.
Contains a wide range of beneficial microbes including:

  • Mycorrhiza (4 species of endo)
  • Trichoderma (2 species)
  • Bacillus (2 species)
  • Streptomyces sp (1 species)
  • Pseudomonas (2 species)
  • Nitrogen fixing bacteria (3 species)

Modern agriculture depletes soil microbes
Many common activities in modern agriculture deplete soil

  • Annual broad-acre crops – microbes soon die once crops are harvested and there are no living roots present.
  • Vegetable production – soils are cultivated & fumigated, destroying roots and beneficial microbes.
  • Orchards and vineyards – spraying weeds with herbicides causes plant roots and beneficial microbes to die.
We recommend MicroPlus at the start of the season to replenish essential soil microbes.

Direction For Use

Ideally apply 1 kg per hectare, per season.

MicroPlus is compatible with a range of fertilisers and chemicals. Check with OFS for details.

May be used via irrigation with filters that allow passage of 200 microns. Mix well and keep agitated.

Dilutions Rate 1 : 100 in water.

Not recommended for use in drip irrigation. MicroPlus includes a clay carrier and should be mixed with good agitation. If the clay particles form a residue, they can be discarded. The microbes are in the solution and the clay can separate out.

Application Rates

1kg per hectare at planting; dip or drench seedling roots during transplant, or as a soil drench or via irrigation. Seed potato apply 500g-1kg per tonne of seed; apply as dust or slurry. Ideal after fumigation.

Orchards & Vines:
Established orchards and vineyards – 1kg per hectare, via irrigation or as soil drench.
New orchards and vineyards – soak plant root systems (500g/50L water) for up to 3 hours prior to transplanting or water-in as a soil drench (1-2g/ tree).

Maintenance: 50 – 200g per ha as seed coat.
Rehabilitation: 200 – 500g per ha as seed coat.
Apply as a dry mix or slurry. Mix with an auger for an even distribution on the seed.

MicroPlus can be mixed in planting soil before or during filling cells, pots and trays. Use 250 gram to 500 grams per cubic metre, depending on cell size (higher rate for smaller cells).

1 kg will treat 100 square metres. Water in thoroughly after application. For new plantings, use 1kg MicroPlus per ha; as a soil drench.
Use all mixture in spray and irrigation tanks; purge tanks and lines with clean water.

Mycorrhizal Plants

Mycorrhizal fungi are an important component of MicroPlus. It is estimated 90% of plants form a symbiotic relationship with mycorrhizal fungi. OFS has summarised which plants do and do not require mycorrhizal fungi.

Contact us for a more complete list.

MicroPlus is crucial for 90% of plants including:

  • Vegetables – potatoes, onions, tomatoes, lettuce & others;
  • Fruit, nuts and vines – strawberries, melons, bananas, grapes.
  • Broad-acre crops and pastures – cereals, cotton, sorghum, rhodes grass, legumes.
    10% of plants do not host mycorrhiza including:
  • Brassica crops – cabbage, broccoli, cauliflower, radish, turnips, canola, etc
  • Amaranthaceae crops – beets, spinach, chard etc
  • Polygonaceae crops – rhubarb, buckwheat

Virtually all other crop plants worldwide grow better with mycorrhiza. See a more complete list in the pdf’s section for MicroPlus.



  • Non-systemic fungicides can normally be used as a foliar spray with MicroPlus at any time.
  • Soil drenching fungicides should be avoided close to the time of MicroPlus inoculation; ie two weeks before treatment (longer if systemic) & four weeks after treatment.
  • Seed treatment fungicides are generally safe with MicroPlus, as they are used at low rates and are rapidly dissipated in the soil and roots.
  • Foliar or soil applications of systemic fungicides can lead to accumulation of fungicide in the root tissue which have a negative impact on MicroPlus fungi. Roots of plants treated with systemic fungicide cannot be colonised by MicroPlus (mycorrhizal) fungi for up to 3 weeks after fungicide treatment.
  • It is worth remembering that no fungicides eradicate either target fungi or beneficial mycorrhiza and trichoderma in MicroPlus; they only reduce development for a short period of time after application. The duration is determined by the persistence of the chemical in the environment.

See a more detailed list of compatibility in the pdf section of MicroPlus