Which figure should replace the question mark (?) if the

Technology in which plants are grown without soil is known as:

Main function of bio-fertilizer is

Bael is rich source of:

For preventing damage by shoot fly in sorghum the seed should be treated with 

During germination, seeds absorb water by 

Khaira disease of rice is due to

What is the main cause of the physiological disorder known as "Tirak" or "bad boll opening" in cotton?

The scientific study of diseases in plants, identification of the pathogen and their management is known as

The insecticide use to control the termites:

Best nitrogenous fertilizer for rice crop is: