Environment and Ecology
2017
Sustainable Development
Agriculture and Environment
UPSC Practice Question
Which of the following practices can help in water conservation in agriculture?
- Reduced or zero tillage of the land
- Applying gypsum before irrigating the field
- Allowing crop residue to remain in the field
Select the correct answer using the code given below:
A.1 and 2 only
C.1 and 3 only
D.1,2 and 3
B.3 only