The four basic types of soil are sand, silt, clay and loam. Loam, considered a perfect soil, is a mixture of silt, clay and sand. Sand is gritty and contains small particles of minerals and rocks, where silt is smoother than sand and is more fertile.
Clay, the most difficult soil to work with, is a fine soil that offers little air space and has poor drainage. Loam is a good soil to use for growing plants because it retains water well and has good drainage. Silt is similar to sand, but it holds moisture better and has more nutrients. Sand is formed by weathering rocks and warms faster than the other types of soil.Learn More
The O horizon soil layer contains the most humus. This layer is the topmost layer of most types of soil. The O horizon layer is primarily composed of decomposed plant litter and humus.Full Answer >
The three main types of soil known to man include sand soil, loam soil and clay soil. These types of soil have different characteristics meaning they are used for varied reasons.Full Answer >
Loam soil, according to the Royal Horticultural Society, is a mixture of clay, sand, silt and organic matter. This soil is loose, fertile, easily worked and drains well; it exists in two variations: clay or sandy loam.Full Answer >
Soil horizons are horizontal layers of soil. Each layer has a distinct name that is distinguished by a particular letter. The contents of each layer vary.Full Answer >