Seeds of pulses are inoculated with bacteria to

Seeds of pulses are inoculated with bacteria to increase N supply.
The seed needs to be adequately coated with the inoculant to accomplish the contact of bacteria with roots.
Legumes can form a symbiotic relationship with nitrogen-fixing soil bacteria called rhizobia. The result of this symbiosis is to form nodules on the plant root, within which the bacteria can convert atmospheric nitrogen into ammonia that can be used by the plant.