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What kind of soils are Andisols
young soils with little weathering
What is parent material of Anidsols
volcanic ash and glacial till with loess
What are the soil collid for Andisols
Allophane and Imogolite
What type of soil collid is for Andisols(Allophane and Imogolite)
non-crystalline structures
What does non-crystalline structure mean
amphoreous
What is the CEC value for Andisols
+20
Is there isomorphic sub for Andisols(Allophane and Imogolite)
no
Is there is no isomorphic sub, what would the pH status be
pH dependent
What is the shrink swell for Andisols(Allophane and Imogolite)
Low
What the nutrient level for Andisols(Allophane and Imogolite)
variable
Are there any construction limitations for Andisols(Allophane and Imogolite)
no
What does And in Andisols mean?
black soil
What is Vitri mean
volcanic glass
What does lowercase s stand for
illuvial accumulation of organic matter and Fe/Al oxides
What does lowercase i stand for
slightly decomposed orgo matter
what does lowercase a stand for
highly decomposed orgo matter
What are units for CEC
cmol/kg
What does lowercase m mean
cemented
What is medial
it is a texture
What does andic mean
Melanic
What makes clay
Rock and Water
What kind of soils are vertisols
little weathered soils
What is parent material for Vertisols
calcerous clay
What lowercase ss stand for
shiny clay wedges
What does lowercase k stand for
accumulation of carbonates
What does the ert in Vertisols mean
turn
What is the soil colloid for Vertisols
Smectite
What type of soil colloid is Vertisols(Smectite)
It is 2:1
What does 2:1 mean
Two tetrahedral to one octahedral
What are CEC values for Vertisols(Smectite)
-80 meq/100g
Is there isomorphic sub for Vertisols(Smectite)
Yes there is isomorphic sub
What does it mean if there is isomorphic sub
the pH is permanent
What is the shrink swell for Vertisols(Smectite)
High
What is the nutrient value for Vertisols(Smectite)
Rich
Are there any construction limitations for Vertisols(Smectite)
yes
What kind of soils are Ultisols
highly weathered
What is parent material of Ultisols
sandy fluvialtile
What does lowercase t stands for
illuvial accumulation silicate clays
What does the Ult stand for in Ultisols
Last
What is the colloid for Ultisols
Kaolinite
What type of colloid for Ultisols(Kaolinite)
1 to 1
What does 1:1 mean
one tetrahedral to one octahedral
What is the CEC values for Ultisols(Kaolinite)
-15 meq/100g
Do Ultisols(kaolinite) have isomorphic sub
no
What is the shrink swell for Ultisols(Kaolinite)
low
What is the nutrient status for Ultisols(Kaolinite)
poor
Are there construction limitations for Ultisols(kaolinite)
No
What type of soils are Oxisols
highly weathered
What is parent material of Oxisols
sesquioxides
What does lowercase o stand for
accumulation of Fe and Al oxides
What does the Ox stand for in Oxisols
Oxides
What is soil colloid for oxisols
Gibbsite and Goethite
What type of soil colloid is for Oxisols(Gibbsite)
Al-oxide
What type of soil colloid is for Oxisols(goethite)
Fe-oxides
What does Al-oxides and Fe-oxides mean
non Crystalline
What are the CEC values for Oxisols(Gibbsite and Goethite)
-5 meq/100gs
Does Oxisols(Gibbsite and Goethite) have isomorphic sub?
No isomorphic sub
What is the shrink swell for Oxisols(Gibbsite and Goethitie)
low to none?
What is the nutrient status for Oxisols(Gibbsite and Goethite)
Poor
Are there any construction limitations for Oxisols(Gibbsite and Geothite)
No
The soluble forms of primary macronutrients taken up by the plants from the soil are:
NO3-, H2PO4-, K+
What does the lowercase letter v stand for
High iron, red material
"As cation exchange capacity increases, the amount of liming material needed to change soil pH increases. True or False
True
Which liming material is a source of magnesium?
Dolomitic limestone
Which colloid has the highest contribution to the cation exchange properties of the soil?
Humus
Plants use potassium in the following form ...?
K+
Which soil will be the best for loblolly pine growth?
The soil with the highest SI
Which soil is the most weathered?
Oxisols
Which liming material will be the least effective in neutralizing acidity?
The liming material with the lowest CCE values
What is a straight fertilizer
A fertilizer that only contains one of the required nutrients
What is a mixed fertilizer
A fertilizer that contains two of the required nutrients
What is formula for lime
CaCO3
How to calculate acidity
(8-buffer pH) times 8
How to calculate ECC
Fineness times CCE(Calcium Carbonate Equivalent)
How to calculate CCE(Calcium Carbonate Equivalent)
(Molecular weight of Calcium Carbonate/ Molecular weight of the liming equivalent) times 100
What is active acidity
soil water pH(only indicates need for liming)
Potential acidity
drop in buffer pH of 8 (used for liming recommendations)