UPSC CSE Prelims
Question 99
"System of Rice Intensification" of cultivation, in which alternate wetting and drying of rice fields is practised, results in :
- Reduced seed requirement
- Reduced methane production
- Reduced electricity consumption
Select the correct answer using the code given below :
View correct answer and explanation
Correct answer: D
Correct Option: D (1, 2 and 3)
Explanation: System of Rice Intensification uses fewer seedlings and alternate wetting/drying rather than continuous flooding; this saves irrigation pumping and reduces methane.
Statement / Pair / Item-wise Analysis:
1. True / qualifies - Widely spaced single seedlings typically reduce the amount of seed required.
2. True / qualifies - Less prolonged anaerobic flooding suppresses methane formation.
3. True / qualifies - Reduced irrigation/pumping can lower electricity consumption.
Option-wise Analysis:
A. Incorrect-omits 3 even though Reduced irrigation/pumping can lower electricity consumption.
B. Incorrect-omits 1 even though Widely spaced single seedlings typically reduce the amount of seed required.
C. Incorrect-omits 2 even though Less prolonged anaerobic flooding suppresses methane formation.
D. Correct-selects exactly the correct statements/items identified above.