With reference to micro-irrigation, which of the following statements is/are correct?
- Fertiliser/nutrient loss can be reduced.
- It is the only means of irrigation in dry land farming.
- In some areas of farming, receding of the groundwater table can be checked.
Select the correct answer using the code given below:
- 1 only
- 2 and 3 only
- 1 and 3 only
- 1, 2 and 3
Explanation
Statement 1 is correct
- Micro-irrigation systems like drip and sprinkler irrigation deliver water and nutrients directly to the root zone of plants. This minimizes nutrient runoff and leaching, thereby reducing fertiliser loss.
Statement 2 is incorrect
- While micro-irrigation is highly suitable for dryland agriculture due to its water-saving nature, it is not the only means. Other traditional methods like contour bunding, check dams, and even limited surface irrigation can be used in dryland areas.
Statement 3 is correct
- By reducing water usage, micro-irrigation helps in conserving groundwater.
