This material, known as nonharvested carbon, is decomposed by organisms in the soil and converted into humus—dark, organic material that forms when plant matter decays. Humus provides many ...

It is rare to find much humus in the soil, which is that dark, organic matter that forms from the breakdown of organic matter in plants and animals. Where is nutrient rich soil found? Generally, ...

Great produce starts from the ground up. When people talk about fertility from humus, compost, green or brown manure, or soil organic matter, they’re talking about getting carbon into the soil.

Healthy soil is composed of 45% minerals (sand, silt, clay, pebbles, rocks, 25% air, 25% water, and 5% organic matter (plants, animals, and microorganisms). The most fertile part of soil is the ...