Biology PYQ 43 of 227 · Plant Physiology: Photosynthesis, Respiration & Nutrition

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

  1. APotassium
  2. BNitrogen
  3. COxygen
  4. DPhosphorus

70th BPSC

Show answer and explanation

Correct answer: (d) Phosphorus

Explanation

Phosphorus stimulates early growth by promoting strong root development in young plants.

It is a component of ATP, the cell's energy currency, aiding metabolic and energy-transfer processes.

By contrast, Nitrogen drives vegetative growth of leaves and stems, not early root establishment.

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