"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:
(a) 1 and 2 only
(b) 2 and 3 only
(c) 1 and 3 only
(d) 1, 2 and 3
Answer: 1, 2 and 3
The system of rice intensification or SRI was first introduced in the 1980s in Madagascar in an attempt to synthesise local rice production. It is a stepwise procedure that includes four separate stages: seed management, water management, nursery change management and duration of the plantation.
Benefits of SRI
- Higher yields – Both grain and straw
- Reduced duration (by 10 days)
- Lesser chemical inputs
- Less water requirement
- Less chaffy grain %
- Grain weight increased without change in grain size
- Higher head rice recovery
- Withstand cyclonic gales
- Cold tolerance
- Soil health improves through biological activity
No comments:
Post a Comment
What you have to say about this?