A wheat field is inoculated with bacterium Azotobacter. Choose the correct option(s) as a result of inoculation.

(A) The soil will get enriched in potassium
(B) The soil will get enriched in nitrogen
(C) There will be no effect on soil fertility
(D) Wheat production will increase

Choose the correct answer from the options given below:

(B) and (D) only

The correct answer is Option (3) → (B) and (D) only

Azotobacter is a genus of free-living nitrogen-fixing bacteria that plays an important role in enriching the soil with nitrogen. When a wheat field is inoculated with Azotobacter, the following effects occur:

(B) The soil will get enriched in nitrogen: Azotobacter fixes atmospheric nitrogen into a form that plants can use, thus increasing the nitrogen content in the soil.

(D) Wheat production will increase: With more available nitrogen in the soil, the wheat plants will have a better supply of this essential nutrient, which can lead to improved growth and higher yields.