Phosphorous 2 Flashcards
1
Q
The distance P travels by diffusion in soil is
A
Pretty small
2
Q
Because P travels small distance in soil by diffusion
A
An active and large root system is important
3
Q
Phosphorus is supplied to roots primarily by (2)
A
Diffusion
Root interception
4
Q
Mass flow/bulk flow is the movement of nutrients to roots surface through
A
Soil water movement
5
Q
Mass flow to roots is driven by
A
Plant transpiration
6
Q
Mass flow is not
A
A major pathway of P movement to plants
7
Q
Root interception is
A
The growth of root structures into new soil that contacts plant-available P
8
Q
Root growth is important because it provides additional
A
Root surface area for P uptake
9
Q
Phosphorous becomes available as (2)
A
Minerals weather
Microbial degradation
10
Q
P is strongly
A
Absorbed by soils
11
Q
P is less easily
A
Lost from soils
