200 300 400 500 100 200 300 400 500 what soil order? parent materials etc.morphology soil taxonomy

200

300

400

500

100100 100100100

200 200 200 200

300300300300

400 400 400 400

500500500500

What soilOrder?

Parent Materials

Etc.MorphologySoil

Taxonomy

Parent Material - 100

• Parent material, climate, organisms, topography and time.

Factors of Soil Formation

Parent Material- 200

• Mixtures of minerals

Rocks

Parent Material - 300

• Igneous or sedimentary transformed by high heat and/or pressure

Metamorphic

Parent Material- 400

• Poorly sorted fragments on steep slopes or at foot of slopes, carried by gravity

Colluvium

Parent Material - 500

• Wind-carried silt

Loess

Taxonomy - 100

• The great group Haplaquolls belongs to this soil order.

Mollisols!!! And you

Better know this one

Taxonomy - 200

• The great group Hapludoll belongs to this soil order, soil moisture regime, and will support this major crop.

Mollisols, udic, corn

Taxonomy - 300

• When comparing these two soil subgroups, which one is the “wettest?”

• Typic Haplaquolls• Aquic Hapludolls

Typic Haplaquolls

Taxonomy- 400

• Place the following three soils in correct order from high to low elevation in a soil toposequence.

• Clarion—Typic Hapludolls• Webster—Typic Haplaquolls• Nicollet—Aquic Hapludolls

Clarion, Nicollet, Webster

Taxonomy - 500• Place the following three soils in correct order from high to low elevation in a soil toposequence.• Clarion—Typic Hapludolls• Markey—Typic Borosaprists• Webster—Typic Haplaquolls• Nicollet—Aquic Hapludolls

Clarion, Nicollet, Webster, Markey

Morphology - 100

• Five common soil structure descriptors

Granular, subangular blocky, angular blocky, massive, columnar, prismatic, single grain

Morphology - 200

• Brightness or purity of the color.

Chroma

•Amount of grey added.

•1 = high grey (low purity)

•8 = low grey (high purity)

•Chroma of 2 or less = gleyed conditions, poor drainage.

Morphology - 300

• Spectral color of rainbow

Hue

Morphology - 400

• A soil color of 10YR 3/2 refers to what three attributes (must be in correct order)

Hue, value, chroma

Morphology - 500

• These features are attributed to strong soil structure

aeration, lower bulk density, porosity, drainage, increased rooting depth, etc.

Etc. - 100

• Unconsolidated mineral and organic material that serves as a natural medium for the growth of plants...

Soil

Etc. - 200– Nitrogen (NO3

-), NH4+)

– Phosphorus (H2PO4-, HPO42-)

– Potassium (K+)– Calcium (Ca2+)– Magnesium (Mg2+)– Sulfur (SO4

2-)

Plant nutrients from soil

Etc. - 300

– C (CO2)

– H (H2O)

– O (O2, H2O)

Plant Nutrients from air

Etc. - 400

• Unconsolidated down to the bedrock is referred to as the

Regolith

A

E

B

C

R

Etc.- 500

• The is the part of the soil profile that has weathered from the parent material, generally the A and B horizons

Solum

A

E

B

C

R

What soil order? - 100

Mollisols

What Soil Order? - 200

Alfisols

What Soil Order? - 300

Spodosols

What Soil Order? - 400

Ultisols

What Soil Order? - 500

Histosols