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Soil Mgmt
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Tilth
The physical condition of the soil as it relates to the ease of tillage, fitness as a seedbed, seedling emergence and root penetraion.
Soil Texture
Size of soil particles. Impacts root anchorage. Smaller root systems in compact soil.
PH aka Soil Reaction
Measure of acidity or alkalinity in soil
Buffering Capacity
Measure of the soils resistance to change
Ions
Charged particles in soil
Cations
Positively charged ions
Cations Exchange Capacity
Soil feritility is determined by the soils ability to hold charged ions.
Pore Space
Space between soil particles
Macropores
Large spaces between soil particles; hold air
Micropores
Small spaces between soil particles; hold water
Nematodes
Microscopic roundworms that can be beneficial or harmful
Rhizosphere
Area of highest biological activity, normally found close to the root system
Mycorrhizae
"Fungus root" has a symbiotic (mutually beneficial) relationship with the roots
Saturation
Macropores are filled with water
Gravitational water
Water that drains away from macropores under the forces of gravity
Field Capacity
Water content held in soil after excess water has drained away
Permanent Wilting Point
No usable water is available from the soil
Infiltration Rate
Rate at which water moves through the soil
Author
jenfox
ID
62309
Card Set
Soil Mgmt
Description
Class 1 Soil and Plant Growth
Updated
2011-01-27T03:55:23Z
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