Test 5 Flashcards
0
Q
Most p absorbed by?
A
Diffusion
1
Q
Sources of p in soil
A
Organic
Inorganic
2
Q
Available soil p?
A
P that in a form usable by plants during growing season
3
Q
Inorganic p in soil to become unavailable?
A
Attaching itself to particles
Binding with cations
4
Q
Amour of k taken up by diffusion
A
75%
5
Q
K is primary replenished in soil by?
A
Exchangeable pools of potassium
6
Q
Non-exchangeable pools located in soil?
A
Between soil layers
7
Q
K fixation
A
When soil gets wet and expands and clay gets trapped between sheets
8
Q
Luxury consumption
A
Can affect nutrient uptake and it is a waste
9
Q
Ca sources slowly available
A
Calcite
Dolomite
10
Q
Ca revert?
A
No
11
Q
Mg function?
A
Photosynthetic process
12
Q
Name micronutrients
A
Zinc
Manganese
13
Q
Toxicity of micronutrients
A
Deficient to toxic small range
14
Q
Ph of metal micronutrients
A
Less than 5
