Term
| What are the 5 major silicate clay groups? |
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Definition
1) Kaolinite
2) Montorocillanite
3) Illite
4) Vermiculite
5) Chlorite |
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Term
| What are the 4 soil colloid groups? |
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Definition
1) Silicate Clays
2) Oxide/Hydroxide Clays
3) Amorphous Inorganic Compound Clays
4) Organic Colloid Clays |
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Term
Which soil colloid group is mostly of tropical descent?
A) Silicate Clays
B) Oxide/Hydroxide Clays
C) Amorphous Inorganic Compound Clays
D) Organic Colloid Clays |
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Definition
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Term
| What 4 things does soil chemistry involve? |
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Definition
1) Cation Exchange Capacity (CEC)
2) PH & Base Saturation
3) Soil Testing
4) Fertilizer/Limestone Application |
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Term
Which soil colloid has non-crystalline structures?
A) Silicate Clays
B) Oxide/Hydroxide Clays
C) Amorphous Inorganic Compound Clays
D) Organic Colloid Clays |
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Definition
| C) Amorphous Inorganic Compound Clays |
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Term
Which soil colloid is an organic colloid?
A) Silicate Clays
B) Oxide/Hydroxide Clays
C) Amorphous Inorganic Compound Clays
D) Organic Colloid Clays |
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Definition
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Term
This silicate clay structure units pore is filled with silicon.
A) Tetrahedron
B) Octahedron |
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Definition
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Term
This silicate clay structure units pore is filled with aluminum 3+.
A) Tetrahedron
B) Octahedron |
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Definition
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Term
This silicate clay structure units pore is a 4 sided structure.
A) Tetrahedron
B) Octahedron |
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Definition
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Term
This silicate clay structure units pore is a 8 sided structure.
A) Tetrahedron
B) Octahedron |
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Definition
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Term
On silicate clays origin of negative site, which one is PH dependent?
A) Ionization of hydrogen
B) Isomorphous (ionic) substitution |
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Definition
| A) Ionization of hydrogen |
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Term
On silicate clays origin of negative site, which one has a permanent negative charge?
A) Ionization of hydrogen
B) Isomorphous (ionic) substitution |
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Definition
| B) Isomorphous (ionic) substitution |
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Term
On silicate clays origin of negative site, which one is on the edge of tetra and/or octal sheets?
A) Ionization of hydrogen
B) Isomorphous (ionic) substitution |
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Definition
| A) Ionization of Hydrogen |
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Term
On silicate clays origin of negative site, which one is in the tetra and/or octal sheets?
A) Ionization of hydrogen
B) Isomorphous (ionic) substitution |
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Definition
| B) Isomorphous (ionic) substitution |
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Term
Which silicate clay group is the only one with 1:1 clay structure?
A) Kaolinite
B) Montorocillanite
C) Illite
D) Vermiculite
E) Chlorite |
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Definition
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Term
Which silicate clay group is a 2:1 clay structure, highly expanding and has a large amount of internal surface area?
A) Kaolinite
B) Montorocillanite
C) Illite
D) Vermiculite
E) Chlorite |
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Definition
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|
Term
Which silicate clay group is the only 2:1 clay structure with moderate CEC?
A) Kaolinite
B) Montorocillanite
C) Illite
D) Vermiculite
E) Chlorite |
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Definition
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|
Term
Which silicate clay group is the only 2:1 clay structure with high CEC?
A) Kaolinite
B) Montorocillanite
C) Illite
D) Vermiculite
E) Chlorite |
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Definition
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|
Term
Which silicate clay group is the only 2:2 or 2:1:1 clay structure?
A) Kaolinite
B) Montorocillanite
C) Illite
D) Vermiculite
E) Chlorite |
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Definition
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Term
| This is a complex and rather resistant material modified from plant and animal residues or synthesized by soil organisms. |
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Definition
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Term
This colloid is non-crystalline, has C,H,O Framework, compared to other clays it has a large number of negative sites, it also has pH dependent sites(carboxylic, phenolic, and enolic).
A) Silicate Clays
B) Oxide/Hydroxide Clays
C) Amorphous Inorganic Compound Clays
D) Organic Colloid Clays |
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Definition
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Term
This colloid is non-crystalline, has Allophane and Imogolite, has positive and negative sites, and its origins is volcanic rock and some igneous rocks.
A) Silicate Clays
B) Oxide/Hydroxide Clays
C) Amorphous Inorganic Compound Clays
D) Organic Colloid Clays |
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Definition
| C) Amorphous Inorganic Compound Clays |
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Term
| This is defined as the total amount of cations adsorbed to soil colloids. |
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Definition
| Cation Exchange Capacity (CEC) |
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Term
| This is defined as the internal/external surface area of colloids. |
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Definition
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Term
| Water vapor moves from a zone of __________ pressure to one of ___________ pressure. |
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Definition
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Term
| Gravitational flow of H2O occurs primarily in the soils (micropores/macropores). |
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Definition
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Term
| Losses of soil water via evapo-transpiration can be reduced by: |
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Definition
| use of mulches, slowing wind velocities, adjusting seeding rates to the amount of water available. |
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Term
| For water to enter a rotted root channel that is completely covered by a silt loam top soil, water movement must occur by: |
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Definition
| gravitational saturated flow |
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Term
| Subsurface drainage of excess water will have the following effect on soil properties: |
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Definition
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Term
| The effective neutralizing material (ENM) value stated on the Missouri soil test reports is used for: |
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Definition
| Calcitic limestone recommendations |
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Term
This is a amorphous soil compound:
A) Humus
B) Allophane
C) Octahedron
D) Tetrahedron |
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Definition
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Term
1:1 non- expanding clay is:
A) Kaolininte
B) Vermiculite
C) Chlorite
D) Montmorillonite
E) Illite |
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Definition
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Term
| What type of clays consist of Al/Fe oxide? |
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Definition
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Term
| Reserve acidity is the same as: |
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Definition
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Term
2:1 non- expanding clay is:
A) Kaolininte
B) Vermiculite
C) Chlorite
D) Montmorillonite
E) Illite |
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Definition
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Term
2:1 limited expanding clay is:
A) Kaolininte
B) Vermiculite
C) Chlorite
D) Montmorillonite
E) Illite |
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Definition
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Term
2:2 non- expanding clay is:
A) Kaolininte
B) Vermiculite
C) Chlorite
D) Montmorillonite
E) Illite |
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Definition
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Term
2:1 highly expanding clay is:
A) Kaolininte
B) Vermiculite
C) Chlorite
D) Montmorillonite
E) Illite |
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Definition
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