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WFHS-Soils

Soil Vocab

TermDefinition
Growing Media the material that provides plants with nourishment and support through their root systems
Decomposed decayed into soil-building materials and nutrients
Leaf Mold partially decomposed plant leaves
Compost mixture of partially decayed organic matter
Sphagnum pale and ashy mosses used to condition soil
Peat Moss a type of organic matter made from sphagnum moss
Perlite natural volcanic glass material having water-holding capabilities
Vermiculite mineral matter used for starting plant seeds and cuttings
Leached certain elements have been washed out of the soil
Microbe living organism that requires the aid of a microscope to be seen
Parent Material the horizon of unconsolidated material from which soil developes
Soil Horizon A distinct layer of soil
Soil Profile a cross section view of the soil
Percolation movement of water through the soil
Permeable permitting movement
`O Horizon the soil layer that is on the surface that is composed of organic matter and a small amount of mineral matter
A Horizon layer near the soil surface that is made up of desirable proportions of mineral and organic matter
B Horizon soil below the A horizon (top soil) and generally referred to as subsoil
C Horizon soil below the B horizon; it is important for storing and releasing water to the upper layers of soil
Silt intermediate soil particles; .05 - .002mm
Sand largest soil particles; 1 to .05mm
Loam a relatively even mixture of sand, silt, and clay
Clay smallest of soil particles; less than .002mm
Mineral Matter non-living matter such as rocks
Created by: jonbri29