United States Department of Agriculture
Natural Resources Conservation Service		 Mid-Atlantic Soil Survey Region #14 Go to Accessibility Information
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Soil Air

Picture of soil clods and spray         Picture of clod in jar of water

All it takes is a can of spray                           Spray the clod and wait a minute
polyurethane and soil clods to                        or two before dropping the clod in
demonstrate soil air.                                     a jar of water.

Picture of clods in water             Picture of two clods in water

Drop the clods gently, and watch                   Air will bubble from some clods for
the bubbles.                                                 up to 20 minutes or more.

Detailed view of clods in water            Detailed view of a clod in water

Soil clods from surface soils from                   Soil clods from subsoils, or soils
orchards, pastures, and lawns,                       from conventionally cultivated fields
generally will have a high soil air                    will generally have lower soil air
content.                                                        content.

 

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