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What is TwinN?

Twin N is a combination of freeze dried nitrogen fixing microbes that colonize the root zone and move throughout the plant. These nitrogen fixing microbes convert N2 from the air into a plant available N for the crop season.

Who uses TwinN?

  • Conventional farmers wanting to reduce N use and increase profits
  • Biological farmers wanting a reliable microbial N fixer and soil improver
  • Organic farmers wanting improved N nutrition and better crop growth

Which crops?

  • Blueberries
  • Temperate fruits – apples, stone fruits
  • Wine and table grapes
  • Vegetables
  • Intensive temperate and tropical pastures/forage/lucerne
  • Broadacre/field crops – cereals, corn, cotton
  • Sugarcane
  • Tropical tree fruits, avocado, bananas, citrus, coffee, tea
  • Macadamia, pecan, almonds
  • Others

How does TwinN work?

TwinN improves crop performance by three main mechanisms

  • Converts N2 from the air into a steady supply of plant available N through the entire crop season
  • Produces larger, more efficient root system due to production of Plant Growth Factors (PGFs) gives improved capture of applied N fertilisers (= improved N use efficiency)
  • Improved soil health and structure. Longer term use of TwinN lowers soil disease pressure and builds soil carbon. TwinN microbes assist in mobilising bound P

How is TwinN applied?

TwinN is applied to the roots where the microbes colonise, multiply and move all through the plant

Common application methods include:

  • Drip, micro sprinklers or overhead irrigation systems – very convenient
  • Trickle tape for vegetable crops
  • Knifing into the root zone as for liquid fertilisers ‐ common in cotton and sugarcane
  • Spraying onto moist soil under trees – use a streaming nozzle and apply easily down the rows
  • Delivery by flood irrigation for farmers who are set up to deliver urea by that method
  • Boomspray onto wet soil or pasture

Application must deliver the microbes into a moist root zone for them to thrive


TwinN is a unique product that reduces the amount of N fertiliser needed

pdfDownload the TwinN fact sheet


For additional information and Research Trials on TwinN please visit their website: