Q. Which component of fertilizer is used for stimulating early growth purpose ?

Correct Answer: b) Nitrogen

Explanation: Nitrogen is a key component of fertilizers that is primarily responsible for stimulating early growth in plants. It plays a crucial role in the development of leaves and stems by promoting the production of chlorophyll, which is essential for photosynthesis. This helps plants grow quickly during their initial stages. While other components like phosphorus and potassium are also important for plant health, nitrogen specifically targets early growth and vegetative development. Oxygen, on the other hand, is not a fertilizer component.