Which of the following practices can help in water conservation in agriculture ? 1. Reduced or zero tillage of the land 2. Applying gypsum before irrigating the field 3. Allowing crop residue to remain in the field Select the correct answer using the code given below :
a
1 and 2 only
b
3 only
c
1 and 3 only
d
1, 2 and 3
Sustainable AgricultureWater Conservation in AgricultureWater conservationagriculturereduced tillagezero tillagegypsumirrigatingcrop residuesoil moisture