What soil Order? Parent Materials Etc.Morphology Soil Taxonomy

Parent Material Parent material, climate, organisms, topography and time. Factors of Soil Formation

Parent Material- 200 Mixtures of minerals Rocks

Parent Material 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 Wind-carried silt Loess

Taxonomy The great group Haplaquolls belongs to this soil order. Mollisols!!! And you Better know this one

Taxonomy The great group Hapludoll belongs to this soil order, soil moisture regime, and will support this major crop. Mollisols, udic, corn

Taxonomy 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 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 Five common soil structure descriptors Granular, subangular blocky, angular blocky, massive, columnar, prismatic, single grain

Morphology 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 Spectral color of rainbow Hue

Morphology A soil color of 10YR 3/2 refers to what three attributes (must be in correct order) Hue, value, chroma

Morphology These features are attributed to strong soil structure aeration, lower bulk density, porosity, drainage, increased rooting depth, etc.

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

Etc –Nitrogen (NO 3 - ), NH 4 + ) –Phosphorus (H 2 PO 4 -, HPO 4 2 -) –Potassium (K + ) –Calcium (Ca 2+ ) –Magnesium (Mg 2+ ) –Sulfur (SO 4 2- ) Plant nutrients from soil

Etc –C (CO 2 ) –H (H 2 O) –O (O 2, H 2 O) Plant Nutrients from air

Etc Unconsolidated down to the bedrock is referred to as the Regolith A E B C R

Etc 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? Mollisols

What Soil Order? Alfisols

What Soil Order? Spodosols

What Soil Order? Ultisols

What Soil Order? Histosols