ease with which gases, liquids or plant roots penetrate or pass through a bulk mass of
soil or a layer of soil
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Permeability
highly decomposed OM; 'sapric'- highly decomposed
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Oa
and; parent material is volcanic ash/cinders; any epipedon; subsoils generally
amorphous materials, P fixing ability; near volcanic areas only; upper Northwest,
Alaska & HI
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Andisols
cover crops, conservation tillage, furrow dikes, contour rows, terraces, strip cropping,
adding organic matter to encourage structure
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Ways to increase infiltration
oxides of iron and aluminum, often present in mature soils and emit reds/yellows in
color
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Sesquioxides
, Bhs horizon, zone of illuvial humus with Fe and Al oxides
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Spodic
vaporization of soil water
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Evaporation
mineralology, texture, pH and stratification
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Inherited Soil Characteristics
two soils intricately mixed on landscape with little ability to predict which may be at a
specific point; at least 75% of map unit is named soils
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Complexes
soil or a layer of soil
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Permeability
highly decomposed OM; 'sapric'- highly decomposed
,Give this one a try later!
Oa
and; parent material is volcanic ash/cinders; any epipedon; subsoils generally
amorphous materials, P fixing ability; near volcanic areas only; upper Northwest,
Alaska & HI
Give this one a try later!
Andisols
cover crops, conservation tillage, furrow dikes, contour rows, terraces, strip cropping,
adding organic matter to encourage structure
Give this one a try later!
Ways to increase infiltration
oxides of iron and aluminum, often present in mature soils and emit reds/yellows in
color
Give this one a try later!
Sesquioxides
, Bhs horizon, zone of illuvial humus with Fe and Al oxides
Give this one a try later!
Spodic
vaporization of soil water
Give this one a try later!
Evaporation
mineralology, texture, pH and stratification
Give this one a try later!
Inherited Soil Characteristics
two soils intricately mixed on landscape with little ability to predict which may be at a
specific point; at least 75% of map unit is named soils
Give this one a try later!
Complexes
