The first stable product of fixation of atmospheric nitrogen in leguminous plants is:
Glutamate
Ammonia
As we discussed in concept
First stable product of atmospheric nitrogen fixation by legumes is ammonia.
Option 1)
Glutamate
This option is incorrect.
Option 2)
This option is incorrect.
Option 3)
Ammonia
This option is correct.
Option 4)
This option is incorrect.