State PCS PYQPrelims 2024

BPSC – Combined Competitive Examination · પ્રશ્ન 31

Which component of fertiliser is used for stimulating early growth (root development)?

  1. Potassium
  2. Nitrogen
  3. Oxygen
  4. Phosphorus
જવાબ બતાવો અને સમજૂતી

જવાબ: (D) Phosphorus

સમજૂતી

In NPK, phosphorus supports early root growth, nitrogen leaf growth, and potassium overall vigour.

  • (A) ખોટો

    Wrong: potassium mainly aids disease resistance and quality.

  • (B) ખોટો

    Wrong: nitrogen mainly drives leafy (vegetative) growth.

  • (C) ખોટો

    Wrong: not a fertiliser nutrient.

  • (D) સાચો

    Correct: phosphorus promotes early root development and establishment.