UPSC Prelims 2022 Question:

“System of Rice intensification” of cultivation, in which alternate wetting and drying of rice field 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:

Explanation: 

• The System of Rice Intensification involves cultivating rice with as much organic manure as possible, starting with young seedlings planted singly at wider spacing in a square pattern; and with intermittent irrigation that keeps the soil moist but not inundated, and frequent inter cultivation with weeder that actively aerates the soil.
  
  
• The System of Rice Intensification (SRI) is an agroecological and climate-smart rice production methodology that allows farmers to:
  
  

• • increase yields by 30-50% or more

• use 90% less seed. So, point 1 is correct

• use 30-50% less irrigation water (through AWD and other methods) by conserving electricity. So, point 3 is correct.

• use 30-100% less chemical fertiliser and pesticides
  
  
• reduction in methane emission. So, point 2 is correct.
  
  

Therefore, option (4) is the correct answer.

Subject: Geography| Agriculture and Allied Sectors(geo)