Topic 9B) Phosphorus

Question 1

Phosphours impact on Plants

Answer 1

Plants need for fundemental processies

Root Growth

Efficent nitrogen fixation

Question 2

Phophourous Deficency

Answer 2

Stunted Growth
Delayed maturity

Question 3

Phosphours Cycle

Answer 3

1) decompostion
Organic and inorganic form

Question 4

Mycorrhizal fungi and phosphate

Answer 4

will help uptake of phosphate from soil once it has infected a plant root

Question 5

Groups of inorganic carbon

Answer 5

Calcium bound inorganic
Iron or alumnin bound

Depends on pH

Question 5

Eutrophication

Answer 5

Concentrtation of souble orgainc P near surface due to farming practices

More loss as runoff then leaching

Question 5

Organic Phosphours

Answer 5

Plants can us both forms inorganic and organic forms of phosphoours

Question 5

immoblity of inorganic phosphours

Answer 5

solobulity of phorohous containing minerals
adsorption of phasphate ions onto the suface of soil particals

Question 5

Fixation Reactions

Answer 5

Rapid reacations in the first few hours