Phosphorus

Question 1

What does phosphorous promote

Answer 1

early rapid root growth and can help counteract N tendency to speed shoot growth at the expense of root growth

Question 2

Does Phosphorous harm plants ability to take up water

Answer 2

no it helps it

Question 3

Does phosphorous hasten crop maturation

Answer 3

yes

Question 4

how do plants beg for phosphorous

Answer 4

turning red

Question 5

are organic forms of phosphorous found in humus

Answer 5

yes

Question 6

is the mineralization of phosphorous possible

Answer 6

yes

Question 7

does phosphorous have any effect on pH or O2

Answer 7

no

Question 8

is there reduction or oxidation of oxygen in the biosphere

Answer 8

no

Question 9

what is phosphate

Answer 9

equal aprts H2PO4- and HPO42-

Question 10

what does phosphate like to stick to the most

Answer 10

2:1- the most anion exchange capacity

Question 11

can clays buffer phosphate concentration

Answer 11

yes

Question 12

mycorrhizae

Answer 12

non pathogenic beenficial fungi that invade plant roots

Question 13

ectomycorrhizae

Answer 13

penetrate between root cells but don’t go through cell walls

Question 14

endomycorrhizae

Answer 14

penetrates root cell walls but not root membranes and are highly branched to maximize surface area`

Question 15

How does phosphate bond to a clay particle

Answer 15

clay particle gives up O- for AlOH

covailent bond

Question 16

what pH is phosphorous most avail at

Answer 16

6.5