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Option 3 : Contour ploughing
The method of soil conservation in which ploughing is done parallel to the contours of a hill slope to form a natural barrier for water to flow down the slope is called Contour ploughing.
- It’s the contour ploughing which involves digging the field parallel to the contours of a hill slope.
- This measure checks soil erosion, as they create water break which prevents the formation of gullies and rills during the heavy downpour.
- Also, it allows the infiltration of water in the ground, which recharges ground water levels.
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