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UPSC Prelims 2011 · Agriculture · Seeds, Water and Fertiliser
With reference to micro-irrigation, which of the following statements is/ are correct? Select the correct answer using the codes given below:
- Fertilizer/nutrient loss can be reduced.
- It is the only means of irrigation in dry land farming.
- In some areas of farming, receding of ground water table can be checked.
- (a) 1 only
- (b) 2 and 3 only
- (c) 1 and 3 only
- (d) 1, 2 and 3
Show the answer and explanation
Answer: (c) 1 and 3 only
Less nutrient loss and less groundwater decline.
Statement by statement
1. ✓ CORRECT Fertigation through drips cuts nutrient loss.
2. ✗ WRONG Dryland farming mostly relies on rain and water harvesting; micro-irrigation is not the only means.
3. ✓ CORRECT Using less water helps stop the groundwater table from falling.
Why the others are wrong
(a) Drops the groundwater benefit.
(b) Accepts “only means”.
(d) Accepts “only means”.
The trap
“Only” in statement 2.
🔒 Micro-irrigation: fertigation, 30–50% water saving.
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