Mode of action of following pesticides is similar
Organochlorines and organophosphates
Organochlorines and carbamates
Organophosphates and carbamates
$DDT$ and parathion
’Boredeaux mixture' is used as a
A green manure is
A legume having symbiotic association with two nitroge fixing bacteria (Rhizobium and Aerorhizobium) is
What gases are produced in anaerobic sludge digesters?
Powdery mildew of wheat is caused by species of