- in acid
soils.
Soil organisms are
hindered by high acidity, and most
agricultural crops do best with
mineral soils of pH 6.5 and
organic soils of pH 5...
-
number of
decisions that
depleted the
soils, including:
allowing herd
animals to
wander freely, not
replenishing soils with manure, and a
sequence of events...
-
naturally saline soils. This is the case, for example, in
large parts of Australia.
Human practices can
increase the
salinity of
soils by the addition...
- in
soils or
water layers submerging soils. The
water is
present either permanently or
cyclic within the time
frame of 24 hours. Some
organic soils float...
- or
poorly graded.
Poorly graded soils are
further divided into uniformly-graded or gap-graded
soils. Fine-grained
soils,
mainly silts and clays, are classified...
- In
soil science, podzols, also
known as podosols, spodosols, or espodossolos, are the
typical soils of
coniferous or
boreal forests and also the typical...
- and
destroy order (anisotropy)
within soils.
These alterations lead to the
development of layers,
termed soil horizons,
distinguished by differences...
- capacity; however, the
fertility of
these soils can be
optimized with
liming and
other farming techniques. Red
soils are an
important resource because they...
-
contaminated soils. The same
amount of
contaminant can be
toxic in one
soil but
totally harmless in
another soil. This
stresses the need for
soil-specific...
- groups: (1) co****-grained
soils (e.g.
sands and gravels); (2) fine-grained
soils (e.g.
silts and clays); and (3)
highly organic soils (referred to as "peat")...
