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Topic Plant nutrients
Asked 2 times across 2 UPSC exams over 37 years (1984–2021), peaking in 1984.
Key insights
- Most tested in CSE — 1 of 2 PYQs
- Most asked in 1984
- Recurs across 2 years (1984–2021)
How it travelled across exams
First appearance in each exam — the same idea, reframed.
CSE 1984 → CDS 2021
How the concept evolved
Long-running — most appearances (1 of 2) predate 2016, and it still returns.
Related concepts
Ideas UPSC tests alongside this one — keep exploring.
Sample questions
You've seen the pattern — here are a few of the actual PYQs.
CDS2021
Fertilizers are used to obtain higher yields of crops. However, all nutrients are usually not available in fertilizers. Which of the following nutrients is usually not available in fertilizers?
- A Iron ✓
- B Potassium
- C Nitrogen
- D Phosphorus
✓ Correct answer: (A)
Science & Technology › Physics & Chemistry
CSE1984
Micro-elements nee
- A Nitrogen, hydrog
- B Nitr
- C Iron (Fe)
- D
Answer key not yet available (pending official release)
Agriculture › Soils & Inputs
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