Sand= 75% Silt= 10% Clay= 15%
sandy loam
Sand=10% Silt=48%
Silty Clay
This Term is defined as the relative proportions of sand, silt and clay of a soil sample that passes through a 2 mm sieve.
Soil Texture
what letter symbolizes the organic layer; decayed plant and animal debris
o
This soil is ideal for gardening and agriculture uses because it retains nutrients well and retains water while still allowing excess water to drain away.
Loamy Soil
Sand= 50% Silt= 10% Clay =40%
sandy clay
Sand=36% Silt=30%
Clay Loam
what are three main ways soil scientists analyze texture.
Feel analysis
Soil Texture Chart
Mechanical analysis
what letter symbolizes topsoil; mixture of mineral and organic matter
A
these soils are plastic due to particle size and geometry as well as water content, and become hard, brittle and non– plastic upon drying or firing.
clay soils
Sand=64% Silt= 30% Clay=6 %
sandy loam
Sand=30% Silt=60%
silt loam
This soil analysis test is conducted in the field
Feel analysis
what letter symbolizes subsoil; low in organic matter and high in minerals; area of most root growth
B
this soil is usually more fertile than other types of soil, meaning it is good for growing crops. Silt promotes water retention and air circulation.
silty soil
Sand=50% Silt=10% Clay= 40%
sandy clay
Sand=85% Silt=10%
Loamy sand
This soil is ideal for gardening and agriculture uses
Loamy Soil
what letter symbolizes parent material; weathered, fragmented rock
They are relatively ‘light’ or easy to work with when it comes to plowing, planting and cultivating.
sandy soil
Sand=27% Silt= 52% Clay= 21%
silt loam
Silt =48% Clay=42%
Silty Clay
How many textural classes are there?
12
what letters symbolize Bedrock (limestone, sandstone, etc.)
D/R
this chart gives names associated with various combinations of sand, silt and clay and is used to classify the texture of a soil.
the soil texture chart