Certain bacteria living in the soil poor in oxygen, convert nitrates into nitrites and then to free nitrogen and such bacteria are termed as |
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a) |
Nitrogen fixing bacteria |
b) |
Denitrifying bacteria |
c) |
Ammonifying bacteria |
d) |
Saprophytic bacteria |
Certain bacteria living in the soil poor in oxygen, convert nitrates into nitrites and then to free nitrogen and such bacteria are termed as |
|||
a) |
Nitrogen fixing bacteria |
b) |
Denitrifying bacteria |
c) |
Ammonifying bacteria |
d) |
Saprophytic bacteria |
(b)
The denitrifying bacteria reduce the nitrates and the ammonium salts to free nitrogen which escapes into the atmosphere. . This process decreases fertility of the soil.