Soil Humus

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Humus — where life in the soil creates more life.

Learn how to measure and build your humus — and why that matters.

How is Humus Formed?

Learn about the basics of soil humus — how it’s formed and its place in a healthy soil ecosystem.

What is Humus Made Of?

Organic matter, nutrients, minerals — learn the key elements that compose soil humus.

Humic Acid

Understand the difference between soil organic matter and humus, and how humic acid can greatly increase soil health and production.

Healthy Soil, Defined

Biological farming expert Gary Zimmer provides a definition of healthy soil and how farmers can achieve it using ecological means.

Building Humus for all Crops

What makes soil humus what it is? What role do soil microbes play in the formation of humus and how does this benefit crops?