- 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...
- The Free
Soil Party was a
political party in the
United States from 1848 to 1854, when it
merged into the
Republican Party. The
party was
focused on opposing...
- and
destroy order (anisotropy)
within soils.
These alterations lead to the
development of layers,
termed soil horizons,
distinguished by differences...
-
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...
-
properties of
soils; and
these properties in
relation to the use and
management of
soils.
Sometimes terms which refer to
branches of
soil science, such...
-
soils have a pH
below 7 and
alkaline soils have a pH
above 7. Ultra-acidic
soils (pH < 3.5) and very
strongly alkaline soils (pH > 9) are rare.
Soil pH...
-
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...
- 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...
-
Black soil may
refer to: Chernozem,
fertile black soils found in
eastern Europe, Russia,
India and the
Canadian prairies Muck (
soil), a
soil made up primarily...
