Soil organic matter is composed of soil microbes ... interact with climate to determine SOC levels. For example, soil texture — the relative proportions of sand, silt, and clay particles that ...
The higher the CEC, the higher the negative charge and the more cations that can be held. Since a soil's CEC comes from the clay and organic matter present, it can be estimated from soil texture and ...
The bulk of soil is made up of a mixture of organic matter ... this is brown and crumbly in texture and similar to that found on well-worked allotments. It's rarely waterlogged in winter or ...
Adopt this method on regularly-shaped plots, where it's important that the soil has an even texture. Single digging is also useful when large quantities of organic matter need to be incorporated.