Consider the following agricultural practices:
- Contour bunding
- Relay cropping
- Zero tillage
In the context of global climate change, which of the above helps/help in carbon sequestration/ storage in the soil?
- 1 and 2 only
- 3 only
- 1, 2 and 3
- None of them
Explanation
Only zero tillage is correct
- Carbon sequestration in agriculture mainly involves practices that enhance soil organic carbon storage by minimizing soil disturbance and promoting organic matter buildup.
- Contour bunding: While it helps in soil conservation and moisture retention, it does not significantly contribute to carbon sequestration.
- Relay cropping: Improves soil fertility and reduces erosion but does not directly enhance long-term carbon storage in the soil.
- Zero tillage: A key method for carbon sequestration, as it reduces soil disturbance, decreases carbon release, and increases soil organic matter over time.
