Q. Which of the following practices will help in Preventing Ground water exploitation? :
1.Zero Tillage
2.Replacing sugarcane plantation with cotton 3.Adoption of modern precision irrigation technologies
Select the correct answer using the code given below:

[A] .1 and 3 only

[B] 2 only

[C] 3 only

[D] 1, 2 and 3

Answer: A
Notes:
  • Cotton is also a water intensive crop. Following are the Typical Crop water requirement (in litres) per kilogram of crop. For Cotton 7,000 – 29,000 and for Sugar Cane it is 1,500 – 3,000.
  • The No Till system is very effective to increase soil water infiltration, to reduce evaporation from soil and also to reduce water run-off. The water availability for crops is increased. The savings in soil moisture can be just as important, especially in a year when soil moisture and precipitation are short or when irrigation is costly or water supplies are limited.