Australia's fertiliser supply is in crisis

Australian farmers need every kilogram of fertiliser to count. Right now, too much of it is being lost.

Urea has passed A$1,200 per tonne. Shipping through the Strait of Hormuz has been cut off. 91% of Australia's fertiliser is imported and the Federal Government has warned shortages could hit growers by late May.

The Black Stuff is a natural humate soil conditioner designed to help retain nutrients in the root zone, reduce leaching losses, and make every application count. This is not about soil health as a nice idea. This is about keeping Australian farms productive when supply is failing.

North Queensland humate source
Laboratory analysis available
Field trial data on file
Ag and hort programs

A generational supply crisis

This is the worst fertiliser shortage Australian farming has faced in decades.

The Gibson Island urea plant is closed. Gulf shipping is disrupted. Domestic production covers just 15% of what we use. Growers preparing for winter cropping are facing constrained supply, record prices, and no clear timeline for recovery. Every kilogram of nitrogen that leaches past the root zone is fertiliser Australia cannot replace.

The Black Stuff is designed to help growers hold more nutrient value in the root zone for longer. It supports nutrient retention, moisture holding, and root-zone performance — so your fertiliser program works harder per dollar spent.

How It Works
A$1,200+
Urea price per tonne
March 2026
91%
of AU fertiliser is imported
2024 data
27%
increase in nitrogen use efficiency
2024 meta-analysis
12%
average crop yield increase
Humic acid studies

What it does

A soil conditioner rich in humic acid, fulvic acid, and organic matter. Here is what that means in practice.

Reduce fertiliser losses

Supports nutrient retention in the root zone. Evidence suggests humic substances help bind nutrients that would otherwise leach or run off.

Hold more moisture

Designed to improve moisture holding capacity in treated soils. In trials, humate materials have retained up to 20 times their weight in water.

Support root-zone performance

Helps improve soil structure and supports the biological activity around the root zone that crops depend on.

Improve input efficiency

Works alongside your existing fertiliser program. Not a replacement — a tool to help you get more from what you are already applying.

This is happening now

Australian food production is under direct threat from fertiliser supply failure.

This is not a forecast. Shipping lanes are closed. Prices have tripled. The Federal Government has acknowledged the crisis. Growers across every sector are being forced to stretch constrained supply — and the winter cropping window opens in weeks, not months.

  • Strait of Hormuz conflict has effectively halted Gulf fertiliser exports to Australia
  • Urea prices have surged from ~A$400/t to over A$1,200/t in under two years
  • Minister Collins has warned shortages could hit growers by late May or June 2026
  • The National Food Council was established to address fertiliser as a food security vulnerability
  • QLD reef regulations add compliance pressure on top of cost and supply pressure

The Black Stuff does not replace fertiliser. But when supply is this constrained, helping every kilogram work harder is not optional — it is how Australian farms stay productive.

See How It Can Help Your Operation

What the trial data suggests

Nitrogen use efficiency+27%
Nitrogen uptake+17%
Crop yield improvement+12%

Source: Ma et al. (2024). Agronomy 14(12), 2763. Comprehensive meta-analysis on humic acid effects on crops globally.

Every sector is affected

From cane country to broadacre, Australian growers are facing the same supply crisis.

Sugarcane

High nitrogen demand. Leaching and run-off losses under tropical rainfall. Reef regulation pressure on nutrient management plans.

Bananas

Intensive nutrient programs in high-rainfall zones. Soil biology and root-zone condition directly affect yield and plant health.

Horticulture

High-value crops where precise nutrient availability and moisture holding can influence quality and pack-out rates.

Broadacre & Pasture

Sandy soils with leaching risk. Cost pressure on every kilogram of applied nitrogen. Feed quality under tight input budgets.

Evidence on file

No hype. Field results, lab analysis, and crop-specific data.

We would rather show you trial data than make claims. Here is what we have.

Field Trial Results

Trial summaries from sugarcane, banana, and horticultural applications in North Queensland. Data includes yield, nutrient retention, and soil condition observations.

View trial data

Technical Analysis

Laboratory analysis of humic acid, fulvic acid, and organic matter composition. Full reports available on request.

See the analysis

Crop Applications

Practical guidance by crop type, soil condition, and existing program. Designed to help you assess fit before you commit.

Explore by crop
Lynch's Crater, Atherton Tablelands, North Queensland

230,000

years of natural formation

Lynch's Crater, Atherton Tablelands, North Queensland

Australian source

Domestic origin. No chemical extraction. No import dependency.

The Black Stuff comes from a humate deposit in North Queensland, formed roughly 230,000 years ago when a volcanic eruption created a maar lake. Peat accumulated under anaerobic conditions over millennia, producing a naturally concentrated humic substance.

Most commercial humate products require potassium hydroxide extraction. The Black Stuff does not. When 91% of fertiliser inputs are imported through disrupted supply chains, a domestic source with no chemical processing step is a practical advantage.

About the Resource

Agronomists, distributors, and input partners

Looking for a credible Australian humate input for grower programs?

We are open to working with agronomists, distributors, and fertiliser businesses who want a nutrient-efficiency product backed by trial data and technical analysis. If it fits your program, we will support it. If it does not, we will say so.

Start a Conversation

The window is closing

Winter cropping starts in weeks. Talk to us now about your crop and program.

Australian growers cannot wait for supply chains to recover. If The Black Stuff can help your operation retain more fertiliser value this season, we want to help you assess that now.