Why Humic Substances in Seaweed Fertiliser Are a Game-Changer for Soil Health

At Edwards' Seaweed Fertiliser, we believe in working with nature, not against it. That’s why our British-made seaweed fertilisers are carefully formulated to include naturally occurring humic substances, which play a vital role in soil biology, crop health, and long-term farm sustainability.

But what exactly are humic substances, and why should farmers care?

What Are Humic Substances?

Humic substances are organic compounds formed from the decomposition of plant and microbial matter over thousands of years. Found in rich, fertile soils, they include humic acids, fulvic acids, and humin, each offering unique benefits to soil chemistry and structure.

In Edwards Advanced Seaweed, these natural substances are combined with British-sourced Ascophyllum nodosum to create a powerful, bioactive liquid that does far more than feed your crops.

The Benefits of Humic Substances in Seaweed Fertiliser

Here’s how humic substances support farmers looking to improve soil health, boost crop performance, and reduce waste:

🌱 1. Improved Soil Structure

Humic substances act like a natural glue, binding soil particles together and improving aeration. This creates a better environment for root growth and supports the return of earthworms and beneficial microbes.

💧 2. Better Water and Nutrient Retention

Humic acids enhance the soil’s ability to hold onto water and nutrients. This means fertiliser stays in the root zone longer, reducing leaching and making your investment go further.

🌿 3. Increased Biomass and Plant Vigour

By improving nutrient availability and stimulating microbial activity, humic substances support greater root and plant biomass – leading to stronger, more resilient crops.

🛡️ 4. Protection Against Stress and Disease

Humic substances help plants resist stress from drought, disease, and nutrient imbalance by supporting systemic resistance and buffering soil pH. They even bind harmful toxins to reduce their impact on roots.

🦠 5. Microbial Stimulation

Fungi and other beneficial microbes feed on humic substances. This boosts the soil’s natural ecosystem, enhancing nutrient cycling and biological defence mechanisms.

The Edwards Advantage

Our Edwards Advanced Seaweed and EASy BioN products are designed to work together – the seaweed and humic substances provide food and shelter for microbes, while the BioN bacteria unlock nutrients and build biology from the ground up.

All of this is packaged and produced in the UK, with minimal carbon footprint and maximum results for your land.

A Sustainable Solution for British Farmers

Farming has always evolved – and right now, the shift is towards regeneration, resilience, and smarter inputs. Humic substances are not a silver bullet, but they are a proven, natural way to build healthier soils and stronger crops, season after season.

Feed your soil, not just your plants. Choose humic-rich seaweed fertilisers from Edwards and see the difference for yourself.

📞 To learn more or place an order, call 01584 711 635.