Organic forming is the technique of raising crops through use of
Manures
Resistant varieties
Biofertilisers
All of these
It’s obvious.
Bacteria found in root nodules of legumes are
Which one of the following is not a biofertiliser?
Biofertilizers include
Leghaemoglobin occurs in
Which of the following is used as biofertiliser?
$I.$ Cyanobacteria
$II.$ Yeast
$III.$ Symbiotic bacteria
$IV.$ Free living bacteria
Choose the correct option
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