Phosphorus Cycle Flashcards
1
Q
What percent of soil is P
A
0.1%
2
Q
Percent of total P available to plants
A
0.01%
3
Q
what percent of P from fertilizer will be used in the first year
A
10-30%
4
Q
Fixation and processes leading to it
A
Chemical process that makes P unavailable to plants. Precipitation reactions and absorption to Al and Fe oxide surfaces
5
Q
Net immobilization of P occurs when
A
C:P ratio > 250:1
6
Q
Net mineralization of P occurs when
A
C:P ratio < 250:1
