Phosphorus Cycle A2 Flashcards
1
Q
All the ways phosphorus can get into the ground
A
weathering of primary minerals desorption of mineral surfaces dissolution of secondary compounds mineralization of organic phosphorus atmospheric decomposition mineral fertiliser
2
Q
ways phosphorus can leave the ground
A
plant uptake leaching runoff erosion immobilisation into organic phosphorus adsorption onto mineral surfaces precipitation to secondary compounds
3
Q
what form is phosphorus in in the ground
A
soluble P
H2PO4-
HPO42+
4
Q
where does the phosphorus go after the plant uptake
A
crop harvest
5
Q
which one is the most minor process of phosphorus leaving the ground
A
leaching
6
Q
how does organic phosphorus get in the ground
A
animal manures
biocides
plant residues
7
Q
where is organic phosphorus stored in the ground
A
microbial
plant residues
humus
8
Q
what do plants use phosphorus to make
A
ATP
DNA
phospholipids
