Soil organic matter is composed of soil microbes including bacteria and fungi, decaying material from once-living organisms such as plant and animal ... silt, and clay particles that make up ...

The bulk of soil is made up of a mixture of organic matter, rock and mineral particles. However, it's the air, water and nutrients in the ground that the growing plant really relies on.

Garden enthusiasts are all too familiar with the trials of clay soil ... causing plant growth to lag behind, according to the Royal Horticultural Society (RHS). This type of soil is largely ...

Clay-rich soils, on the other hand, increase water holding capacity and provide many plant essential nutrients. A common measure of soil fertility is obtained by measuring the cation exchange ...