A soil with an umbric epipedon, albic horizon, and argillic horizon would be classified
as a(an) ___.
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Alfisol
,A subsoil horizon in which clay has accumulated, having a high sodium content and
columnar structure is a ______ horizon.
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Soils formed on well-drained sites under forest vegetation in the warm, humid
temperature zones (Southeastern U.S.) are often classified as ___. These soils are highly
weathered.
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Ultisols
Soils derived from volcanic ash are classified as___________.
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Andisols
Organic matter tends to decrease the ___ of soils.
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, Bulk density
Soil organic matter degradation will be greatest when
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There is sufficient soil moisture and aeration at neutral pH and relatively
warm temperatures to degrade residue with high levels of N
Which of the answers below represents an immobilized form of N?
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Protein in a bacterial cell
Soils in arid to semi-arid climates, often
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Have deposits of secondary minerals that have formed from the
weathering soluble components of primary minerals that cannot leach and
thus form secondary mineral deposits
The mineral subsurface horizon in which organic matter accumulation is an important
microprocess is
as a(an) ___.
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Alfisol
,A subsoil horizon in which clay has accumulated, having a high sodium content and
columnar structure is a ______ horizon.
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Soils formed on well-drained sites under forest vegetation in the warm, humid
temperature zones (Southeastern U.S.) are often classified as ___. These soils are highly
weathered.
Give this one a try later!
Ultisols
Soils derived from volcanic ash are classified as___________.
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Andisols
Organic matter tends to decrease the ___ of soils.
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, Bulk density
Soil organic matter degradation will be greatest when
Give this one a try later!
There is sufficient soil moisture and aeration at neutral pH and relatively
warm temperatures to degrade residue with high levels of N
Which of the answers below represents an immobilized form of N?
Give this one a try later!
Protein in a bacterial cell
Soils in arid to semi-arid climates, often
Give this one a try later!
Have deposits of secondary minerals that have formed from the
weathering soluble components of primary minerals that cannot leach and
thus form secondary mineral deposits
The mineral subsurface horizon in which organic matter accumulation is an important
microprocess is
