Biofertilizers
Kill pests
Prevent pest growth
Retain soil fertility
All the above
Leghaemoglobin occurs in
In paddy fields, _______ serves as an important biofertiliser
$VAM $ is important for
Which of the following are the part or example of symbiotic mutualistic association?
$I.$ Yeast
$II.$ Rhizobium
$III.$ Mycorrhiza
$IV.$ Oscillatoria
Aquatic fern which is an excellent biofertilizer