Biofertilizers include
Biofertilizers include
- [AIPMT 1997]
- [AIPMT 2001]
- A
Cowdung manure and farmyard waste
- B
A quick growing crop ploughed back
- C
$BGA$/Anabaena and Azolla
- D
All the above
Similar Questions
Assertion : Nitrogen-fixing enzyme in legume root nodules function at low oxygen concentration.
Reason : Low oxygen concentration is provided by leghaemoglobin.
Assertion : Nitrogen-fixing enzyme in legume root nodules function at low oxygen concentration.
Reason : Low oxygen concentration is provided by leghaemoglobin.
- [AIIMS 2004]
The main sources of biofertilisers are
$(a)$ Bacteria
$(b)$ Cyanobacteria
$(c)$ Fungi
$(d)$ Protists
The main sources of biofertilisers are
$(a)$ Bacteria
$(b)$ Cyanobacteria
$(c)$ Fungi
$(d)$ Protists
Aquatic fern which is an excellent biofertilizer
Aquatic fern which is an excellent biofertilizer
- [AIPMT 2000]
Azolla is used as a biofertiliser because it
Azolla is used as a biofertiliser because it
- [AIIMS 2018]
Which of the following are the part or example of symbiotic mutualistic association?
$I.$ Yeast
$II.$ Rhizobium
$III.$ Mycorrhiza
$IV.$ Oscillatoria
Which of the following are the part or example of symbiotic mutualistic association?
$I.$ Yeast
$II.$ Rhizobium
$III.$ Mycorrhiza
$IV.$ Oscillatoria