Unlike cropland, prairie soils
are rich in fungi, which appear to be an essential component of high diversity.
However, scrutiny of crawfish production from alluvial areas, especially where treated rice was not used, suggests strongly that drought resulted in a much greater reduction of crawfish production in the lighter prairie soils
than in alluvial soils.
Soil compaction by heavy equipment has become one of the most important problems in modern large-scale plant production, but one area that has not received much attention is the effect of soil compaction on prairie soils
over time periods in excess of about 10 years.
For starters, soil carbon is what made our prairie soils
so black and fertile.
In the first place we already know how difficult it is to break, plough, and seed prairie soils
and complete self-sufficiency has never been a feature of western farms.
Native prairie soils
that have never been tilled often have a density of about 60 to 68 pounds per cubic foot (1 to 1.
It has been found at low levels in native prairie soils
in the U.
The heavily eroded prairie soils
lacked much of an A horizon, were well drained, low in organic content, and slightly acidic.
In prairie soils
with dominant smectitic clay minerals, the wettability is affected by changes of porosity and pore characteristics due to the swelling of clay minerals and organic matter during wetting (Tillman et al.
, productive for agriculture, are found throughout the central United States.
are clayey and calcareous with organic matter contents of 4 to 6% (Moran et al.