Trigger release fertiliser

Seed application

Fertiliser placed with the seed, without the salt burn. Designed for small, fertiliser-sensitive seeds such as canola and pasture species.

The problem

Seed burn at sowing

Salt spikes on first rain

Soluble fertiliser placed with the seed dissolves on first wetting and creates a high-salt zone around the seed.

Injured seed, poor emergence

Salt stress injures the seed and leads to poor root emergence.

Small seeds most at risk

Small, slow-germinating seeds such as canola and pasture species are most at risk, especially under dry sowing.

At the seed

What happens at sowing

Soluble chemical fertiliser versus NanoSoils trigger release at the seed
Soluble chemical fertiliser
  • Dissolves on first wetting and creates a high-salt zone around the seed.
  • Salt stress injures the seed and leads to poor root emergence.
  • Small, slow-germinating seeds such as canola and pasture species are most at risk.
NanoSoils trigger release
  • Placed close to the seed with low salt concentration, so the seed is protected.
  • Nutrients are released when roots exude organic acids, supporting strong root growth.
  • In laboratory tests, canola germination was preserved.
How it protects the seed

Held at sowing, released when roots call

1

Sowing and first rain

Release is negligible on first contact with water, so no salt burst forms around the seed.

2

Roots emerge and exude organic acids

The organic acids lower the local pH around the fertiliser.

3

Nutrients follow the root

This root signal triggers P and N release, supporting strong root growth.

Evidence

What we have shown so far

Scale of evidence: laboratory/greenhouse scale; field trials are planned from 2027.
TestCommercial TSPNanoSoils
Canola germination with fertiliser at the seedSeed injuryGermination preserved

Related seed trials

Who it is for

For growers and seed suppliers

Canola

Small, slow-germinating seed that is sensitive to fertiliser at sowing.

Pasture species

Small seeds that are most at risk of seed burn, especially under dry sowing.

Seed and fertiliser suppliers

A seed-safe way to place fertiliser close to the seed.