“System of Rice Intensification” of cultivation, in which alternate wetting and drying of rice fields is practised, results in :
- 1.Reduced seed requirement
- 2.Reduced methane production
- 3.Reduced electricity consumption
Select the correct answer using the code given below :
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Answer: D. Item 1 is correct: SRI transplants single young seedlings widely spaced, so far less seed is needed. Item 2 is correct: alternate wetting and drying lets oxygen into the soil, cutting methane. Item 3 is correct: less water is pumped, which saves electricity for irrigation. So 1, 2 and 3.
Watch for: Students miss the indirect link: less water used means less electricity for pumps.
Why the other options are wrong
- A. Wrong because item 3 (less pumping, less electricity) is also correct.
- B. Wrong because item 1 (lower seed rate) is also correct.
- C. Wrong because item 2 (lower methane) is also correct.
Source to check: ICAR / Directorate of Rice Research notes on SRI; National Food Security Mission guidelines on SRI
Answer from the official UPSC key. Written and fact-checked by AI against the official key. Spotted a mistake? Report it.