Environment and Ecology
2022
Sustainable Development
Agriculture and Environment

"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:

A.1 and 2 only
B.2 and 3 only
D.1, 2 and 3
C.1 and 3 only

Correct Answer: Option D

The System of Rice Intensification (SRI) is a sustainable rice cultivation method focused on water conservation and increased productivity through alternate wetting and drying of rice fields.

Statement 1 is correct: SRI requires significantly less seed compared to traditional methods. Approximately 2kg of seed is needed to cultivate a nursery for one acre, whereas the traditional method requires 5kg.

Statement 2 is correct: SRI helps in reducing methane production.

Statement 3 is correct: SRI leads to reduced electricity consumption because less water consumption directly translates to lower energy inputs for irrigation.

Hence, 1, 2, and 3 are correct.